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http://www.water-technology.net/contractors/construction/biwater/press10.html Tue, 06 May 2008 12:10:31 GMT http://www.water-technology.net/contractors/construction/biwater/press10.html Biwater AEWT's RO System To Supply 15% of Singapore's Water Biwater AEWT was recently awarded a supply contract for the largest Water Reuse project in South East Asia. At a capacity of 228,000 m³/day (60MGD), this will provide 15% of Singapore's water demand by 2010. The contract, awarded by the main contractor, SembCorp Industries, is for a Reverse Osmosis treatment plant for the fifth, and largest, NEWater facility in Singapore. SembCorp Industries is the main contractor for the design, build, own and operate contract at the Changi Water Reclamation Plant. The new plant will initially treat 68,130 m³/d (18 MGD) of Changi Water Reclamation Plant's total effluent, which is currently 800,000 m³/d (211 MGD). By 2010 treatment at the new plant will be ramped up to 228,000 m³/d (60 MGD). Biwater has now secured a total capacity of over 1,562 MLD (413 MGD) installed or contracted projects in reverse osmosis and nanofiltration for the treatment of seawater, brackish water and water re-use. http://www.water-technology.net/contractors/it/wallingford/press21.html Wed, 30 Apr 2008 09:12:15 GMT http://www.water-technology.net/contractors/it/wallingford/press21.html FloodWorks v9.0 Extends Flood Forecasting to Wastewater and Stormwater Networks Wallingford Software today announces the release of FloodWorks v9.0, the leading real time flood forecasting and warning software solution. Two significant advances head a large number of feature enhancements in v9.0: the ability to include wastewater and stormwater models within FloodWorks and the direct integration of RADAR data into FloodWorks. In FloodWorks v9.0 wastewater (InfoWorks CS) and stormwater (InfoWorks SD) models can now be integrated directly into the FloodWorks forecasting system. Outfalls from InfoWorks CS and InfoWorks SD models can be connected directly to existing InfoWorks RS models of river and floodplain areas to provide a more accurate and comprehensive representation of the runoff from urban areas and its contribution to overall flooding. Product Manager, Tyrone Parkinson says: "InfoWorks CS and InfoWorks SD may be used in isolation of course to model urban flooding from wastewater and stormwater systems. But when integrated with FloodWorks v9.0, the benefits of these two superb modeling environments are combined with the unrivalled strengths of the FloodWorks forecasting and warning system that is proven to protect property and save lives. This is another example of the value of Wallingford Software's breadth of development capability and its vision for integrated modeling." Earlier releases of FloodWorks used radar data that had been pre-processed into sub-catchment rainfall time series. The new RADAR functionality in FloodWorks v9.0 directly reads raw RADAR images and processes the data into individual sub-catchment time series using polygons defined within FloodWorks configuration manager. Tyrone Parkinson says: "This approach provides more flexibility to connect to a wider range of radar systems, particularly those that don't offer sub-catchment rainfall post processing. It also allows the user direct control over how the sub-catchment rainfall accumulation is performed and how the resultant rainfall time series may be merged with other rainfall sources." A modular software package, FloodWorks is used extensively for the real-time simulation and forecasting of extreme hydrological and hydraulic conditions within river basins, drainage systems and the coastal zone. Since its launch in 2000 FloodWorks has become recognised as the most advanced real time flood forecasting application in the world with users across the world, particularly in Europe and South East Asia. http://www.water-technology.net/contractors/it/wallingford/press20.html Sat, 19 Apr 2008 16:03:54 GMT http://www.water-technology.net/contractors/it/wallingford/press20.html Wallingford Software Releases Version 9.0 of InfoWorks Version 9.0 of InfoWorks, released today, provides ample evidence as to why Wallingford Software is widely regarded as the most innovative and technically advanced of all modeling software developers for the water industry. In addition to major developments - such as the ability to model 2D flows using InfoWorks RS - InfoWorks v9.0 includes scores of enhancements that will improve personal productivity and performance. In v9.0 for instance, users can export InfoWorks models and results to Google Earth format for sharing across the Internet. InfoWorks v9.0 includes a wealth of improvements to all four products: InfoWorks CS for wastewater management and sewerage provision, SD for stormwater, WS for water distribution and supply and RS for river, channel and floodplain flows. http://www.water-technology.net/contractors/it/wallingford/press19.html Sat, 19 Apr 2008 09:16:32 GMT http://www.water-technology.net/contractors/it/wallingford/press19.html Wallingford Software Releases InfoNet v9.0 Wallingford Software announces today the release of InfoNet v 9.0, the latest version of its asset management software solution for the water and wastewater industries. Analysis of water network data and integration of network data with other corporate systems dominate a long list of new and enhanced features. InfoNet's strengths in water network data integration and analysis has led many water utility departments to embrace the solution, including asset planning, Asset Performance and Control, Operations and Engineering departments. V9.0 incorporates a wealth of new and enhanced features of benefit to this wide constituency of users. In particular Stuart Dodd, InfoNet's Global Product Manager, believes that InfoNet v9.0 will help utilize resources effectively and aid external accountability: "The ability to review and analyze historic network assets, plan new rehabilitation and repair projects, monitor progress and report fully to industry standards ensures that water and waste water utilities not only target their resources to their best advantage but ensure that regulatory reporting meets current and future transparency and audit requirements." InfoNet v9.0 includes a number of enhancements to the collection of network data including the ability to incorporate the results of individual Drain Test surveys into InfoNet and the ability to link and analyze network events with specific properties or customers. Data analysis is enhanced through the expansion of the SQL function library and the ability for users to define which fields are to be displayed when the cursor is 'hovered' over a network object. It is also now possible to search for 'missing objects' from the external source dataset that are not recorded in the InfoNet network, and list or delete these as required in InfoNet. Stuart Dodd concludes: "The new features and enhancements in InfoNet add greatly to the solution's security and flexibility, as well as providing key facilities that the modern utilities, engineering consultants and contractors have requested. Specifically, the ability to provide network review, analysis and reporting tools that can deliver costed, controlled and auditable projects, will help ensure that InfoNet continues to be adopted by the worldwide water industry." http://www.water-technology.net/contractors/construction/biwater/press9.html Wed, 09 Apr 2008 09:38:49 GMT http://www.water-technology.net/contractors/construction/biwater/press9.html Biwater Wins Oued Sebt Seawater Reverse Osmosis Desalination Contract A Biwater Construction Ltd led consortium has been awarded a Build, Own, Operate (BOO) contract for a new seawater reverse osmosis desalination plant to be constructed at Oued Sebt in the region of Tipaza, Algeria. The new plant will deliver 100,000m³ per day of high quality drinking water when completed. The plant is designed to desalinate raw seawater from the Mediterranean Sea, with approximately 38,800mg/l of total dissolved solids, to meet the European Union drinking water quality standards. The plant will consist of eight reverse osmosis units at a capacity of 12,500m³ per day with two stages to acquire the required boron level of 0.1mg/l. The current design will make use of deep sea intakes with a pre-treatment consisting of circular dissolved air flotation clarifiers and rapid gravity sand filters. Out of six competitors, Biwater had the winning tariff of US$0.6794/m³ with a total investment cost of US$114,961,000, with Aqualia as the runner up at a tariff of US$0.6879/m³. The new plant is one of a series of new seawater reverse osmosis plants currently being built in partnership with the Algerian Energy Company. This is an ambitious program intended to supply Algeria with 2.3 million cubic metres of desalinated water by 2011. The award is an important milestone for Biwater, as it will allow the company to penetrate the growing market for seawater reverse osmosis desalination plants. http://www.water-technology.net/contractors/equipment/watson_marlow/press10.html Tue, 25 Mar 2008 16:14:49 GMT http://www.water-technology.net/contractors/equipment/watson_marlow/press10.html United Utilities Upgrades 'Trouble-free' Peristaltic Pump Technology at Haslingden Grane WTW as part of Framework Agreement Four Watson-Marlow Bredel 520 series dosing pumps have been installed at United Utilities Haslingden Grane Water Treatment Works in Rossendale, Lancashire. The new pumps will replace earlier 500 series pumps which have delivered trouble-free service since commissioning in 1993. The new 520 series pumps have been supplied under United Utilities' framework agreement with Falmouth-based leaders in peristaltic pump technology, Watson-Marlow Bredel. The framework agreement relates to the use of peristaltic pumps for the dosing, transfer and metering of liquids and slurries within the water industry. This includes abrasive materials and chemicals such as lime slurry, ferric and sodium hypochlorite, as well as sewage sludge. The framework agreement has been in place since April 2007. 'The first Watson-Marlow units we used on site were 504 pumps. They were installed in 1993 when the site was built and have been in continuous use ever since. We've always found them to be incredibly robust and they require very little maintenance. Reliable, accurate dosing is crucial and the Watson-Marlow pumps give us the peace of mind we need to run the plant efficiently. As a result, when we made the decision to upgrade the pumps, we wanted to continue with Watson-Marlow's technology - it made no sense to change supplier,' says John Hamer, Process Controller at Haslingden Grane WTW. Engineers at Haslingden Grane, which serves a population of 50,000 people, use the 520 series pumps for two key water treatment functions: the dosing of sodium hypochlorite and sodium bisulphite. Sodium hypochlorite is a highly corrosive chemical that has disinfection and bleaching properties. It is used in the purification of wastewater and the disinfection of drinking water. However, dealing with the chemical can be difficult as it is toxic and emits chlorine when in contact with acids. It naturally releases tiny bubbles of gas, which have a tendency to collect on the small ball valves found in conventional diaphragm dosing pumps. This can cause gas locks in the system, which prevent the pumps from functioning. Because peristaltic pumps retain the fluid completely within the tube and have no valves that can leak or corrode, they can be used for the accurate metering of substances as challenging as sodium hypochlorite, without the associated gas locking and maintenance problems. Peristaltic technology therefore helps to keep costly downtime at the site to a minimum. The pumps are also used for dosing sodium bisulphite - which is used to de-chlorinate the water after disinfection and control the level chlorination at that point. The chemical is dosed in very small quantities, which requires a high degree of precision and accuracy from the pump. Often, it is necessary to dilute sodium bisulphite in order to control the dosage procedure accurately. This can add an extra degree of complexity to the process. However, this is not an issue for process engineers at the Haslingden site because Watson-Marlow's 520 peristaltic pumps can be calibrated either by weight or volume, allowing very precise dosing and metering. This allows the user to dose small amounts reliably even at low pressure, without the need for dilution. Generating a flow rate of between 4µl and 3.5litre/min, the 520 pumps ensure unrivalled levels of accuracy, reliability and control in even the harshest operating environments. Each one is rated to IP66, providing washdown protection for arduous conditions. The 520 series delivers user feedback via the pump's own display and have dual analogue input to control and scale speed. The 520 series provides users with a "drop-in" alternative for diaphragm or piston pumps with variable stroke control. http://www.water-technology.net/contractors/monitoring/checklight/press6.html Tue, 11 Mar 2008 15:43:52 GMT http://www.water-technology.net/contractors/monitoring/checklight/press6.html CheckLight Secured First round of Financing CheckLight, provider of innovative bioluminescence-based solutions for rapid water quality testing and online monitoring, has completed its first fundraising round. The water technologies company Whitewater, owned by Hanna Gertler and Ori Yogev, has announced it will make a strategic investment in the company of up to US$3.5 million in several stages. The funding will be used to accelerate CheckLight's R&D activities and recruit key personnel. The company plans to collaborate with Whitewater Security, a subsidiary of the Whitewater Technology Group, by enhancing its advanced technological systems and methods offered for preventing, protecting and monitoring accidental contamination and terrorist events in water works. http://www.water-technology.net/contractors/disinfection/hanovia/press21.html Thu, 06 Mar 2008 15:22:24 GMT http://www.water-technology.net/contractors/disinfection/hanovia/press21.html Hanovia Expands to New Premises British UV disinfection specialist Hanovia Limited has expanded its operations by moving to newer, larger premises in Slough, England. The new building provides 1,865 sq m (20,000 sq ft) of space, allowing Hanovia to significantly increase production of its UV disinfection systems which are sold world-wide for process water, aquaculture and swimming pool water treatment. As the only UV system supplier to develop and manufacture both UV lamps and monitors, Hanovia is recognised as the technology leader in UV disinfection. Its UV systems are an integral part of many water treatment processes in the food, beverage, brewing and winemaking industries as well as high purity applications like pharmaceutical and semiconductor manufacturing. Hanovia is part of the Fluid Technology division of Halma, an international market leader in safety, health and sensor technology. Halma is a public company listed on the London Stock Exchange and has over 3000 employees in over 40 subsidiaries worldwide. These subsidiaries make products that protect lives and improve the quality of life for people through innovation in market leading products which make its customers safer, more competitive and more profitable. http://www.water-technology.net/contractors/it/wallingford/press18.html Sun, 02 Mar 2008 09:17:07 GMT http://www.water-technology.net/contractors/it/wallingford/press18.html Wallingford Software achieves key IACET accolade Following an exacting application process Wallingford Software has once more achieved the International Association for Continuing Education and Training's (IACET) highest accreditation level of 'Authorized Provider'. The company first achieved this key accolade in 2002 from the internationally recognized non-profit association, which is dedicated to certifying education providers that meet its stringent continuing education guidelines. As certification is for a period of five years before re-certification is required, Wallingford Software had to submit to an exhaustive review process. This included submitting a detailed application outlining its course offerings and procedures, details of its instructors and award process, and explaining how the company determines the right course for the client. As part of the process, an IACET representative visited the US corporate office to review the day-to-day activities of the training department. As a result of the detailed submission and visit, the decision was made to once again award Wallingford Software the status of Authorized Provider. This allows Wallingford Software to continue awarding Continuous Education Units (CEUs). CEUs are a vital element of the company's training program, particularly in the United States where engineers are obliged to attain a set number of professional development hours each year in order to renew their Professional Engineer's license. One CEU is equal to ten Professional Development Hours (PDHs). As a result of the renewed IACET accreditation, engineers will be able to put their experience in learning how to use Wallingford Software's suite of solutions towards this vital qualification. Wallingford Software's Director of Training and Client Services Nicole Kasow explains: "At Wallingford Software we pride ourselves on our excellent training services and this accreditation gives engineers a value-added experience when they attend our training courses. The added bonus of being able to award CEUs to engineers from around the world means that not only do those who attend our training courses learn best practice in modeling water supply, collection systems and river systems, with the most powerful and comprehensive suite of solutions on offer, but are also able to enhance their professional status at the same time." http://www.water-technology.net/contractors/valves/gemu/press6.html Fri, 01 Feb 2008 14:57:15 GMT http://www.water-technology.net/contractors/valves/gemu/press6.html GEMü goes Danish The valve, measuring and control specialist from Ingelfingen founds its own sales subsidiary in Denmark. The new subsidiary GEMü ApS will be going into operation on the 1st of May 2007 in Ballerup/Denmark. After years of co-operation between GEMü and the Klitsö processtechnic a-s company as a sales partner, relations with the customers are to be made even closer. GEM Denmark will look after the existing sales partners and open up new branches of business for GEMü. At the same time we are responding to the globalisation of our Danish customers. The work on international projects is demanding stronger and stronger supraregional co-ordination between engineering, plant construction and end customers which can be provided most efficiently and quickly in the GEMü group itself. GEMÜ is therefore represented by its own offices in 17 countries and by sales partners in more than 50 countries. http://www.water-technology.net/contractors/valves/gemu/press8.html Fri, 01 Feb 2008 14:54:50 GMT http://www.water-technology.net/contractors/valves/gemu/press8.html New Globe Valve Type Series from GEMÜ GEMÜ has developed two completely new pneumatically operated globe valves, GEMÜ 530 and 534 with a stainless steel and a plastic piston actuator respectively. The two new valve types use the same valve bodies. As a first step nominal sizes DN 15-50 are available with valve bodies in 1.4408 cast stainless steel and GGG 40.3 (EN-GJS-400-18-LT) SG iron. This new development of the valve bodies enabled considerable material and weight saving whilst offering the same stability. The cv values have also been improved by up to 40% compared to existing valve type 512. The maximum operating pressure for sizes DN 15 - 40 is 25 bar, for DN 50 16 bar. The standard version can be used up to 180°C. The new PTFE gland packing for type 530 is steam resistant and suitable for vacuum applications as standard. Versions for higher temperatures and with other seals are available on request. Connections available are flanges to EN 1092/PN 16 form B, length EN 558-1, series 1 and flanges to the same standard for PN 25. The actuators used were taken from the modular globe valve range The stainless steel actuator of the GEMÜ 550 angle seat globe valve is available for GEMÜ 530, the plastic actuator of the GEMÜ 554 angle seat globe valve is used for GEMÜ 534. The stainless steel actuator is particularly suitable for applications in a chemically corrosive environment. For applications where the plants are regularly foamed with corrosive cleaning agents, a special venting valve for the actuator is available as an option. It prevents the penetration of media into the actuator. All nominal sizes can be equipped with regulating cones for flow control. The valves can then be used as control valves in combination with GEMÜ positioners and process controllers. An extensive range of accessories and instrumentation leaves hardly anything to be desired even in fully automated plants. The new valves have an excellent price/performance ratio and will be available in February 2008. http://www.water-technology.net/contractors/valves/gemu/press7.html Fri, 01 Feb 2008 11:32:58 GMT http://www.water-technology.net/contractors/valves/gemu/press7.html Foundation Stone Laid for GEMü Dome The ceremonial laying of a foundation stone was the signal for work to commence on the new building in the Waldzimmern Business Park, Niedernhall which is just eight kilometers away from the company's head office. The business park enjoys good transport links and will be the new base for the GEMü development department, which has grown substantially over recent years. Prototyping and trials with a range of test benches and testing equipment will also relocate from Kochertal to the new premises. The exhibition centre will become home to GEMü exhibition stand construction and a permanent exhibition containing new exhibits and functioning models. Exhibition stands will also be designed, built and tested here. "We want to test new development approaches and give our technicians and engineers a brand new working environment. They need to develop new solutions and products in an open, creative environment, inspired by technical exhibits and the building's own architecture," explained Fritz Müller at the ceremony. The new building is due to be finished and opened early in 2009. The space freed up at the main centre in Ingelfingen is needed to expand production and to house the rapidly growing sales teams. The tremendous business growth enjoyed in recent years means that the GEMü factory in Criesbach, which was recently expanded by 4,700 m² in 2005, is already close to bursting at the seams. The new building in Hohenlohe is another sign of GEMü's faith in Germany as a base for its future growth. http://www.water-technology.net/contractors/monitoring/checklight/press5.html Tue, 01 Jan 2008 13:58:15 GMT http://www.water-technology.net/contractors/monitoring/checklight/press5.html New Water Quality Monitoring Kits As of January 2008, CheckLight introduces the new models of its rapid and sensitive water testing kits: ToxScreen3 test kit - on top of the recognized advantages of the ETV-verified ToxScreen2 kit, the new version has the following new features: 15 minutes response time Higher sensitivity to many chemical contaminants Simpler test procedure AOC3 test kit - on top of being rapid and reliable, the added features include: Wider spectrum of response to carbon-based nutrients Simpler test procedure http://www.water-technology.net/contractors/it/wallingford/press17.html Thu, 20 Dec 2007 15:02:07 GMT http://www.water-technology.net/contractors/it/wallingford/press17.html Savannah picks InfoWorks for city-wide model Savannah picks InfoWorks for city-wide model 17 December 2007: The City of Savannah's Water and Sewer Bureau has chosen InfoWorks from Wallingford Software to meet its modeling needs. Both the sanitary sewer and water supply versions of InfoWorks are being used. "We selected InfoWorks from Wallingford Software based on an evaluation of the water and sewer modeling software available in the market. This was the best one to fit our needs," said Water & Sewer Engineering Director Abe Ghazi. A particular requirement was to choose a dynamic system, he added. "We are going to be using InfoWorks to model both the water and sewer systems for the City of Savannah." The software has been installed and preliminary sets of data have been imported. "We are adding to it and completing the model," said Mr Ghazi. Parts of the system are already running, though the software has not yet been fully implemented. "We haven't had any problems with it - it is running well." Savannah is located in Georgia in the southern USA. Its Water & Sewer Bureau is a municipal, government-based, organization serving residents, businesses, and visitors. The Bureau's work is vital to meeting the needs of a growing community and overcoming the challenges of ageing infrastructure. The Bureau is made up of an environmental affairs section, as well as four departments, including Water & Sewer Planning & Engineering (WSPE), which is headed by Mr Ghazi. The department will be using InfoWorks to help in a variety of roles, including managing capital improvement projects, maintaining an inventory of water and wastewater systems and keeping as-built plans up to date. Technical support is provided to the other departments within the Bureau. The WSPE is also the local enforcement agency for the review and approval of all water and sewer construction plans and specifications to ensure full compliance with federal, state and local rules, regulations and ordinances. http://www.water-technology.net/contractors/pipes/flowtite/press9.html Thu, 13 Dec 2007 16:02:40 GMT http://www.water-technology.net/contractors/pipes/flowtite/press9.html Minister Yamani Signs Water Facilities and Operating Services Contracts for Three Industrial Cities At a press conference held in his office recently, Dr Hashem Yamani, Minister of Commerce and Industry and Chairman of the Saudi Organization for Industrial Estate and Technology Zones (SOIETZ), signed contracts with the International Company for Water Distribution (Tawzea) for the management of water services projects benefitting three industrial cities. These projects are unique as they provide comprehensive water services while meeting all the environmental and water needs of the industrial cities through ROT (Rehabilitate, Manage and Transfer) contracts. This is the first such move in the Middle East. Namely, the projects are: The ROT project for potable water facilities in Jeddah's 1st Industrial City The ROT project for potable, sewage, irrigation, and industrial water in Riyadh's 2nd industrial city The BOT (Build, Operate and Transfer) project for potable, sewage, irrigation, and industrial water in Gassim's first industrial city Minister of Commerce and Industry Dr Yamani said the projects are in line with SOIETZ's strategy to privatize water services within the industrial cities to become integrated entities, adding that more water contracts for industrial cities in Dammam and Al-Ahsa are on the way. SOIETZ is currently revamping operations within the industrial cities in the hopes of modernizing services. Attending the signing was Dr Tawfiq al Rabiah, General Manager of SOIETZ. "The signing of the water services privatization contracts is part of a grand plan we are implementing at SOIETZ to upgrade services within industrial cities in the hopes of overcoming obstacles faced by industrialists and creating model industrial zones," commented Dr al Rabiah. "With today's signing we are embarking on a major regional undertaking for the future of our nation, and as such I am pleased to witness the gradual evolution of our industrial cities as they develop their infrastructure to meet the growing needs of local industries," added Dr al Rabiah. The International company for Water Distribution (Tawzea) is one of the first national companies to provide water services and facilities management in a comprehensive and integrated method. It is a 50/50 percent joint venture between AmiWater, a subsidiary of the Saudi Arabian Amiantit Company specialising in water management projects, and the Saudi Company for Industrial Services CISCO. The new company combines AmiWater's global expertise in water management projects, and CISCO's expertise in services management in industrial cities. While at the present time the focus is on providing these services in the industrial cities, Tawzea looks forward to expanding the company's future in the management of water services to include the residential and industrial sectors. Accordingly, Tawzea plans to offer its services in the area of BOT water, water treatment and sewage systems, and the company is also planning to expand its range of operations to include gas distribution networks and residential networks within cities. For his part, Mohamed al Rehaily, CEO of Tawzea estimated the construction and operating costs of these projects to exceed US$800 million during the 30-year contract life span. Tawzea will meet all the water needs of the first industrial city in Jeddah, the second industrial city in Riyadh, and the first industrial city in Gassim covering the water system, irrigation, sewage and industrial water treatment. The International Company for Water Distribution (Tawzea) is a leading Saudi company providing water services and facilities management in a comprehensive manner. Tawzea is a partnership equally divided between AmiWater, a subsidiary of the Saudi Arabian Amiantit Company specializing in water management projects. http://www.water-technology.net/contractors/water_chem/hengiu Tue, 04 Mar 2008 00:00:00 GMT http://www.water-technology.net/contractors/water_chem/hengiu Beijing Hengju Beijing Hengju manufactures and supplies specialty water treatment chemicals for oilfield, wastewater treatment, potable water, mineral processing, sugar and paper industries. In addition to a complete range of powder grade polyacrylamides, marketed under the HENGFLOC trade name, our company also supplies polydadmac, polyamine and dicyandiamide type liquid coagulants to cater for all requirements of the industries that we serve. Founded 15 years ago the company has grown rapidly as a result of its involvement in the Chinese oilfield industry where a variety of our products are currently used to improve the efficiency of oil production. HENGFLOC - ULTRA HIGH MOLECULAR WEIGHT FLOCCULANTS The HENGFLOC range of anionic, cationic and non-ionic flocculants and coagulants is produced in both Beijing, our company headquarters, and in Shanghai, with a total powder polymer capacity exceeding 50,000t per year. We produce all of our acrylamide requirements utilising microbiological technology to produce high quality crystal acrylamide, which enables our range of ultra high molecular weight polymers to be produced. As a result of these investments in new technology our products are capable of competing with other global suppliers and are now being exported around the globe. PRODUCTS FOR THE WASTEWATER TREATMENT INDUSTRY The HENGFLOC range of flocculants and coagulants are used extensively in the treatment of wastewater from both municipal and industrial wastewater treatment plants. MUNICIPAL WASTEWATER TREATMENT Our products can be used in all solid-liquid separation processes in municipal (sewage) wastewater treatment including primary, activated and digested sludge thickening and dewatering processes. INDUSTRIAL WASTEWATER TREATMENT The HENGFLOC range of flocculants and coagulants are used extensively in the treatment of wastewater from a wide variety of industrial processes also. These industries include: Paper Textiles Leather Petrochemical Oilfield Chemical Food Breweries/wineries Electroplating Pharmaceutical Slaughterhouses PRODUCTS FOR THE OIL INDUSTRY Beijing Hengju has supplied products to the Chinese oil industry for over 10 years and is the leading supplier of polymers to this industry. All the major Chinese oilfields including Daqing, Shengli, Xinjiang, Henan and Huabei use our products extensively. The major areas of application of our products are: Enhanced oil recovery Profile modification Drilling fluid additives PRODUCTS FOR THE PAPER INDUSTRY We manufacture a range of powder flocculants and liquid coagulants for use on the paper machine and the wastewater treatment plant. Our products are suitable for a wide variety of different types of paper production. The HENGFLOC PG range of retention reagents have been specifically developed to be used as a single retention reagent system. They are also used in combination with a mineral or organic coagulant or in a treatment system together with a microparticle. The HENGFLOC range of coagulants also finds use in the production of paper. These polyamines and polydadmacs are used generally for the following applications: In conjunction with an anionic retention aid providing the cationic charge to enable the dual product system to function correctly To neutralise the charge on anionic trash in the water circuit As fixing agents therefore controlling the 'stickies' in the coated broke In conjunction with AKD and ASA sizes to improve cure rate For the treatment of white water and wastewaters from the paper process the standard HENGFLOC range of cationic and anionic flocculant's can be used for effective treatment. Other applications for our products in the paper industry include anionic dye fixers and formation aids for tissue manufacturing. PRODUCTS FOR THE POTABLE WATER TREATMENT INDUSTRY Today the potable water industry uses polyacrylamides, polyamines and polydadmacs in clarifying and dewatering processes. The advantages of the organic coagulants against the inorganics are as follows: Improved performance at dosages of 5 to 10 times lower Minimises the volume of sludge generated thus saving on sludge dewatering costs Improvements in solid-liquid separation times therefore demanding less thickening capacity and reduced capital investment No effect on the PH of the treated water Operates over a broader PH range No addition of soluble metals such as Al and Fe Our HENGFLOC WG range of flocculants and coagulants comply with global requirements for safe use in potable water and food industries and offer cost effective alternatives to the use of inorganic chemical treatment. PRODUCTS FOR THE SUGAR INDUSTRY The HENGFLOC WG range of flocculants and coagulants, comply with Global standards for safe use in the food industry and are now extensively used throughout the world. HENGFLOC WG flocculants are effective for the clarification of sugar juice and our polyamine coagulants, HENGFLOC 110 and 111, are effective in decolouring clarified liquor during both the processing and refining of the sugar juice. http://www.water-technology.net/contractors/automation/eesiflo Tue, 19 Feb 2008 00:00:00 GMT http://www.water-technology.net/contractors/automation/eesiflo EESiFlo EESiFlo(R) is the world-renowned manufacturer of portable and fixed Transit-Time (Time of Flight), Doppler, and the newly patented Concurrent-Transit-Time Ultrasonic Flow Meters and Doppler Flow Switches. EESiFlo has supplied flow meters and switches to every major industry around the world, including: Nuclear power plants Water and waste-water Heavy equipment-operators Chemical manufacturing Aerospace industry Oil and gas exploration Automotive production HVAC and plumbing Pharmaceutical industry Bio-diesel production Hydrocarbon production Soft-drink manufacturers Hydroelectric dams Shipbuilding National defence RENT TO OWN EESiFlo maintains a wide fleet of portable ultrasonic flow meters in our “Rent to Own” pool. If you'd like to kick the tires on one of our advanced flow meters, we'll gladly apply one week's rental against the purchase of a brand new product. EASZ-10P PORTABLE DOPPLER FLOW METER The EESiFlo EASZ-10P is a simple, straight forward, hand-held Doppler flow meter designed to accurately monitor slurries and highly aerated liquids. The battery operated EASZ-10P has an easy-to-use programmable totalizer and rate display, is extremely easy to use, and will fit in any toolbox for immediate use. EESIFLO PORTALOK 7S PORTABLE TRANSIT-TIME AND DOPPLER FLOW METER EESIFLO Portalok 7S is a weatherproof Transit Time and Doppler portable flowmeter suitable for measurements on all pipes between 1 and 40 inches, from -20ºF to 210ºF, with built in 4-20mA and pulse outputs and a 60,000 point data logger. The Portalok 7S comes in kit form with a 110/220 VAC Wall mount battery charger, 33 foot sensor cabling, communications port with cables and Windows Software, pipe clamping fixtures, ultrasonic couplant, tape measure, calculator and manual. EASZ-6000 PORTABLE, TWO CHANNEL, DUAL-MODE FLOW METER The EESiFlo EASZ-6000 is a two channel (two pipes at once) dual-mode (Transit-Time and Doppler) flowmeter capable of measuring the flow of any liquid through any pipe, without changing transducers. The EASZ-6000 will accurately measure clean, dirty or aerated liquids in pipes from ¼ inch to 256 inches in diameter, up to 400°F, and even higher if requested. The EASZ-6000 has a built in data-logger capable of storing 100,000 records, and will output data in various analogue and digital formats. Two very accurate clamp-on temperature sensors will enable the EASZ-6000 to make Heat Quantity measurements for HVAC or Energy applications. The EASZ-6000 is the most powerful flowmeter in the world, just ask any of our long list of greatly satisfied clients! EASZ-3000 FIXED DOPPLER FLOW METER The EESiFlo EASZ-3000 is a rugged fixed Doppler flowmeter for use under inclement conditions. It will continuously measure the flow (rate and volume) of a liquid using Doppler technology. The EASZ-3000 is available in both AC and DC powered versions and will measure pipes from 1 inch to 118 inches in diameter. The EASZ-3000 displays both instantaneous flow rates and totalized flow, and has user configurable 4 to 20 mA and relay (pulsed) outputs. EASZ- 5000 FIXED, SINGLE CHANNEL, DUAL- MODE FLOW METER The EESiFlo EASZ-5000 is a weather proof, single channel dual-mode (Transit-Time or Doppler) flow meter with standard output options. It is ideal for multiple fixed installations. The EASZ-5000 is available in both AC and DC powered versions and will measure pipes from 1 inch to 110 inches with two different transducer configurations. The EASZ-5000 will display both instantaneous flow rates and totalized flow, and has user configurable 4 to 20 mA and relay (pulsed) outputs. EASZ-7000 FIXED, TWO CHANNEL, DUAL- MODE FLOW METER The EESiFlo EASZ-7000 is a fixed two channel, dual-mode (Transit-Time or Doppler) flow meter with numerous analogue and digital output options. The EASZ-7000 will accurately measure clean, dirty or aerated liquids in pipes from ¼ inch to 256 inches in diameter, up to 400°F, and even higher if requested. The EASZ-7000 has a built in data-logger capable of storing 100,000 records, and will output data in various analogue and digital formats. EASZ-7800 FIXED, FOUR CHANNEL, DUAL-MODE FLOW METER The EASZ-7800 is a four-channel (four pipes at once) clamp-on dual-mode (Transit-Time and Doppler) flowmeter with the ability to measure fluid energy in BTU, Watts or Joules. The multi-channel flow measurements can be used for almost any liquid. The EASZ-7800 can also perform mathematical calculations on the four physical measurements, and is ideal for pipes located close together. The EASZ-7800 will accurately measure clean, dirty or aerated liquids in pipes from ¼ inch to 256 inches in diameter, up to 400°F, and even higher if requested. The EASZ-7800 has a built in data-logger capable of storing 100,000 records, and will output data in various analogue and digital formats. Accurate clamp-on temperature sensors will enable the EASZ-7800 to make Heat Quantity measurements for HVAC or Energy applications. EASZ-11 OPEN CHANNEL FLOW METER The EESIFLO EASZ-11 Open Channel Flow Meter measures the height of any liquid as it passes by a flume or weir and then automatically calculates the volume of liquid passing by. The EASZ-11 can be calibrated to any flume or weir, or values can be input by the user to accommodate any custom flume. EASZ-12 DOPPLER FLOW SWITCH The EESIFLO EASZ-12 Doppler Flow Switch ultrasonically measures the velocity of fluid inside a pipe and activates a relay (open or close) depending upon user defined High and Low alarm levels. The EASZ-12 is quick and easy to install, no holes to drill, no sensor fouling, no maintenance and no downtime. Applications include slurries, sewage, sludge, pulp, food products, aerated water and abrasives. You need one on every pump in your plant to protect them from running dry. http://www.water-technology.net/contractors/filters/secura Fri, 08 Feb 2008 00:00:00 GMT http://www.water-technology.net/contractors/filters/secura Secura B.C. SECURA B.C. manufactures melt-blown polypropylene filter media for liquid and air filtration and filter cartridges for liquid filtration at absolute, nominal and economical grades. Production is based on SECURA's own patented melt-blown technology. SECURA's staff are also active in designing filtering systems to meet the requirements of individual applications in a variety of industries, e.g. water filtration for beverages, juices, beers, pharmaceuticals, paints filtration for manufacturers and the automotive industry. Systems are also designed for the domestic potable water filtration market. ABSOLUTE FILTERS SECURA's absolute filters achieve 99.98% (η =5,000) filtering efficiency, keeping low pressure drop and very high dust loading capacity. Due to the carefully designed internal structure of the filter, 100% of the filter's volume is active in the filtration process (depth filters). Due to our unique patented production technology, SECURA's filters keep high rigidity and do not allow the filter material to collapse under the increasing pressure during filtration. Filters are mostly made with: 64mm O.D. and 28mm I.D. as double open end (with or without gaskets) or single open end with Code 3 or Code 7 endcaps. Typical lengths: 10in, 20in, 30in, 40in - FRA type 120mm O.D., 28mm I.D., 10in, 20in, 30in lengths, DOE - BSA type 140mm O.D., 90mm I.D., 23in and 40in lengths, SOE- FON type 6in O.D., 4.5in I.D., 20in and 40in lengths, DOE- CLA type NOMINAL FILTERS The filtering efficiency of SECURA's nominal filters is kept at a 95% level, optimising the cost of filtration by minimising pressure drop and maximising the service life of the filter. Due to these feathers, nominal filters are made in the widest variety of diameters and lengths: 64mm O.D., 28mm I.D. - 5in, 7in, 9 ¾in, 20in, 30in, 40in lengths, DOE - FRN type 120mm O.D., 28mm I.D. - 10in, 20in, 30in lengths, DOE - BSN type 140mm O.D., 90mm I.D. - 20in and 40in lengths, DOE - FON type 6in O.D., 4.5in I.D. - 20in and 40in lengths, DOE - CLN type ECONOMICAL FILTERS The filtering efficiency of SECURA's economical filters is kept at a 80% level, minimising the cost of filters. Low pressure drop and reasonably long service life make them suitable for domestic potable water applications. The filter dimensions are prepared for typical plastic housings: 60mm O.D., 28mm I.D. - 5in, 7in, 9 ¾in, 20in lengths, DOE - FRE type 110mm O.D., 28mm I.D. - 10in, 20in lengths, DOE - BSE type INTERNATIONAL DISTRIBUTION SECURA is a leading manufacturer in Eastern Europe and markets its products through an international distribution network. Since January 2001 SECURA has joined the AQUA group of companies, supporting manufacturers of plastics housings, dosing pumps, self-cleaning filters and pump accessories. SECURA's staff of 35 includes four PhD specialists and six senior engineers to provide ongoing R&D support for production and engineering services for customers. The AQUA group of companies is intensively developing products for domestic, semi-industrial and industrial filtration. Check our website - you can expect something new every day. http://www.water-technology.net/projects/stpetersburgwater/ Fri, 02 May 2008 00:00:00 GMT http://www.water-technology.net/projects/stpetersburgwater/ St Petersburg Flood-Prevention Facility With the long-awaited completion of the St Petersburg flood-prevention facility ‐ the biggest construction project in eastern Europe, known locally simply as 'the dam' ‐ 280 years of debate over the city's flooding woes are set to come to an end in 2008. "280 years of debate over St Petersburg's flooding woes are set to come to an end in 2008." Home to 4.6 million people and some of Russia's most prized cultural treasures, throughout St Petersburg's 300 years of history the city has been flooded on an almost annual basis ‐ and in some years, more than once. A total of more than 270 large-scale floods have been recorded since the city was founded in 1703 ‐ the worst in November 1824, when the waters rose more than 4m above normal levels, destroying 450 houses and leaving hundreds dead. Although the idea of a dam was first put forward by field-marshal Minih in 1727, it was not until 1978 that the project began to become a reality under the Soviet regime, only to falter with around 65% completed amid the political and economic changes of the 90s. Work recommenced in 2003 with the help of $245m from the European Bank for Reconstruction and Development (EBRD) ‐ said to be its largest ever single loan ‐ and the political impetus of President Vladimir Putin, who himself originally hailed from the city. In addition to the 25km dam itself, the scheme also includes the construction of a six-lane highway running along its top, six discharge sluices, closable flood gates for two navigation channels to allow ship access, a series of bridges and a major new tunnel to carry traffic. Bringing the project to completion cost around $420m, with funding coming from the Russian Federal budget, the European Investment Bank and the Nordic Investment Bank, in addition to the EBRD. THE FLOODING PROBLEM Founded by Tsar Peter the Great and intended to provide him with a 'window on the Baltic', St Petersburg lies on the shores of the Neva Bay, in the Gulf of Finland at an elevation ranging from sea level to over 175m at its highest point in the Duderhof Heights. With a significant section of the city no more than 4m above sea level, flooding has long been a problem for St Petersburg's population although the underlying cause has only been fully understood fairly recently. High winds blowing eastwards from the Gulf of Finland were initially thought to be the root of the problem, forcing water to back up along the Neva and ultimately breaching the city's embankments. "Over 270 large-scale floods have been recorded since St Petersburg was founded in 1703." However, research has established that a much more complex hydro-meteorological system is to blame ‐ with cyclonic low-pressure fronts originating in the North Atlantic drawing larger volumes of water into the almost land-locked Baltic Sea. This sets up a series of long, low-frequency waves in the water ‐ akin to a tidal bore ‐ as the cyclone moves further inland, which become higher when they meet the shallows of the Neva Bay and then ultimately spill over into the low-lying areas of St Petersburg. THE ST PETERSBURG DAM The island of Kotlin lies in the middle of the Neva River delta and naturally divides the seaward approach to the city into two channels ‐ one to the north and a second to the south. The flood defence project bridges the Gulf of Finland, from north to south, with Kotlin and the island's fortified town of Kronstadt, at its centre. Extending to a total length of 25.4km, the dam stands 8m above sea level and is 30m wide, accommodating the new north-south road link. The barrier consists of 11 rock and earth embankments, with six 24m-wide sluices to discharge the outflow from the Neva, while the navigation channels have closing gates to be shut when there is a risk of flooding. The southern main channel ‐ C1 ‐ is 200m wide and 16m deep, and remains open all year round; the 110m-wide, 7m-deep C2 to the north will operate when the water is ice free. Two 130m-long, curved doors form the flood-protection gates for C1, resting in dry-docks to either side of the channel. When a flood warning is issued, the docks will be flooded, the doors then floating into the closed position. With the barrier itself also forming a major part of the structure of the city's ring road, ensuring uninterrupted traffic flow required the construction of a number of additional features. Road bridges will span each of the sluices and while the C2 navigation channel has a lift bridge, a tunnel section set 17m below the flood gates conveys the roadway underneath the main C1 channel. Although the flood protection element of the project will come into service in 2008, according to EBRD estimates, the highway is not expected to be fully completed until 2012 at the earliest. BARRIER TUNNEL All 15 of the tunnel sections were originally constructed during the 1980s, but not connected. Joining them posed some engineering challenges, since once in situ, it would be impossible to access them for maintenance or repair ‐ necessitating a design specification which called for a lengthy, high-performance lifetime. The contract was awarded to Trelleborg Engineered Systems and the solution chosen represented the first use of their 40m-wide, 7m-high 'Omega' seals ‐ named after the similarity of their cross-sectional profile to the Greek letter ‐ in a cut-and-cover tunnel of this kind. "The dam stands 8m above sea level and is 30m wide, accommodating the new north-south road link." Needing to exclude water at high pressure, but still maintain adequate three-dimensional flexibility, the installation uses a unique double-seal approach, an inner Omega seal backing up the outer one. Built to withstand temperatures from 30° below zero to 70°C, it is a design described by the company's Moscow sales manager as 'made to provide resistance for the next hundred years'. KEY PLAYERS Rosstroy, the Russian federal agency for construction, housing and communal infrastructure, were the client and project sponsor. Halcrow acted as design team leader, with operations and planning services being performed by Royal Haskoning. Vinci and a number of local building and civil engineering firms were responsible for the construction. The seals on the tunnel sections were provided by Trelleborg Bakker and manufactured in their Ridderkerk factory. http://www.water-technology.net/projects/crotonfiltration/ Thu, 24 Apr 2008 00:00:00 GMT http://www.water-technology.net/projects/crotonfiltration/ Croton Water Filtration Plant, New York The largest single construction contract in New York's history, when the Croton water filtration plant enters service in 2012 it will bring an end to a long, and at times controversial, saga which began back in 1989. Once completed, the plant will represent a significant step in improving the water quality of the one million New Yorkers who rely on the Croton water system ‐ the city's oldest ‐ which first began service in 1842. "The Croton water filtration plant will ultimately treat around 1.2 million cubic metres a day." Being built entirely underground and requiring deep excavation and extensive rock boring to provide the necessary water tunnels, the four-storey plant will ultimately treat around 1.2 million cubic metres a day. This represents roughly 10% of New York's daily requirement ‐ though the plant will be able to increase its throughput to supply around 30% in times of drought or severe need. The construction contract is for $1.3bn. CROTON BACKGROUND New York city obtains its drinking water from a system of 19 reservoirs located in a watershed which extends to nearly 2,000 square miles. The watershed itself naturally falls into two geographically discrete regions ‐ the Catskill / Delaware, to the west of the Hudson river and the Croton to the east, comprising 12 reservoirs and three controlled lakes. The Croton watershed is particularly exposed to an ongoing threat of contamination, chiefly as a result of stormwater run-off and there have been a number of pollution incidents historically. The system was removed from service for periods during 1992, 1993, 1994 and 1998 ‐ and shut down entirely for much of 2000 and 2001, when contaminants leaked into the New Croton Aqueduct. In 1989, the US Federal Environmental Protection Agency (EPA) introduced the Surface Water Treatment Rule (SWTR), requiring all surface drinking water to be filtered unless stringent water quality and disinfection criteria are met. Additionally, the Safe Drinking Water Act mandated the filtration of all surface water by June 1993 except where compliance with strictly defined public health standards made it unnecessary. "New York city obtains its drinking water from a system of 19 reservoirs." In July 1992, New York City Department of Environmental Protection applied for filtration avoidance for the Catskill / Delaware system, which was granted in January of the following year. However, no similar waiver was sought for the Croton Watershed. In 1993, the EPA determined that the SWTR applied and that the water from this source would need to be filtered and disinfected. PROGRESSING THE CROTON PROJECT Although planning began for the plant, by 1997 the slow progress led to the federal government bringing a legal suit against the city; the state of New York also intervened on the basis of non-compliance with the relevant state legislation. In 1998, in an attempt to resolve the issue in the best interests of the people of New York, all three parties arrived at agreement over a consent decree, which charged the city with building a plant by September 2006. Getting started on the project was to prove difficult. The consent decree was to be twice amended ‐ in 2002 and 2004 extending various deadlines because of violations, while missed deadlines for site selection lead to two fines, totalling some $180,000. In the end, with residents near the preferred site suing to block the work, site approval was only to come after a State Court ruling. The problems were not to stop here, however. In February 2007, when three deadlines were missed ‐ for the hiring of a main contractor and the resolution of electrical and HVAC contracts ‐ the federal government imposed daily fines of $30,000. Two months later, the low bidder ‐ a consortium led by the Perini Corporation ‐ pulled out, leaving only one other. In May 2007, the Skanska / Tully Construction JV were awarded the contract, which was finalised in August ‐ Skanska's 80% share representing the company's largest order in the US to date. THE WATER FILTRATION PLANT The processes to be used are largely conventional and well established, with water arriving at the plant undergoing the usual regime of pre-treatment stages ‐ mixing / coagulation, flocculation and chemical balancing. Flocculation will be a two-stage process, with a minimum 144-second period for each stage. "The Croton treatment will involve stacked Dissolved Air Floatation (DAF) / filtration." Treatment itself will involve stacked Dissolved Air Floatation (DAF) / filtration ‐ the combination of a DAF loading rate of 50gpm and a dual media filter containing 60cm anthracite, 30cm sand being chosen to optimise particulate removal. DAF sludge skimmed solids will be dewatered by centrifuge before disposal. The filtered water is then disinfected by treatment with UV and chlorine. After treatment, the water will be chemically adjusted as required and subsequently dosed with orthophosphate for corrosion control and hydrofluorosilicic acid to add fluoride. The main construction houses the treatment plant itself, administration offices and an on-site laboratory, and additionally includes chemical storage and facilities for process residuals and backwash water, together with the necessary ancillary electricals, SCADA and piping. Associated work will provide a raw water tunnel from the New Croton Aqueduct, with a pumping station and wet well, corresponding pumping arrangements for treated water and a second tunnel linking to the city's distribution network. Given the magnitude of the undertaking, plant control is a particularly significant aspect of the overall design. To ensure integrated process balancing together with careful monitoring and control of key treatment elements including the backwash and chemical feed facilities, the plant will make use of state-of-the-art digital automation architecture and expert systems. In October 2007, the contract for this part of the plant was awarded to Emerson Process Management, who will install PlantWeb digital automation architecture with the Ovation expert control system to control 15,000 I/O points relating to the new plant's operation. The whole system will call for the provision of Ovation controllers, 12 workstations, four operator interfaces and a variety of 'smart' devices, including magnetic flow-meters, pressure and temperature sensor / transmitters and automatic chlorination analysers. To ensure the full integration of the whole facility, the contract also extends to providing the hardware, network design and maintenance of the administration buildings. "The new Croton plant is to be the first WTP actually located within New York's boroughs." The new plant is to be the first WTP actually located within New York's boroughs, being constructed at a 12-acre site within Van Cortlandt Park beneath the Mosholu Golf Course in the Bronx ‐ with ten acres being turned back into a municipal golf course on completion. This inevitably poses some serious construction challenges, including the need to drill, blast and excavate more than 730,000m³ of rock and soil. The final excavation will be 150m × 180m in footprint and lie 30m down in the underlying rock and in addition to the plant itself, two water tunnels are to be constructed to transport water into and out of the filtration system. Originally intended to filter and disinfect 1.1 million cubic metres daily, the additional 100,000m³ a day appeared as part of the latest contract. KEY PLAYERS &t; http://www.water-technology.net/projects/cocacolabottling/ Thu, 17 Apr 2008 00:00:00 GMT http://www.water-technology.net/projects/cocacolabottling/ Coca-Cola Bottling Plant, Wakefield Coca-Cola&squo;s Wakefield facility is the largest of six major bottling plants the company operates in the UK. The plant recently completed an upgrade of its water treatment facility ‐ with Severn Trent and Norit working to provide a comprehensive purification and recovery system ‐ which increased influent quality and upped supply capacity by over 30%. In addition, the solution selected ‐ membrane ultra-filtration (UF) ‐ represents a significant departure from the company&squo;s traditionally established multi-barrier approach to water purification. The project increased water treatment peak capacity from an hourly 300 m³/hr to 400m³/hr, improved efficiency to approaching 99% and achieved a tenfold reduction in wastewater generation ‐ down to an average 60m³/day. The total project cost was £1.6m to design, manufacture and install the new filtration and wash-water recovery system. BACKGROUND "The total project cost was £1.6m to design, manufacture and install the new filtration and wash-water recovery system." Housing nine production lines, with the capacity to produce 4,000 330ml cans and 3,200 PET bottles per minute ‐ ranging from 500ml to 3l ‐ and home to one of the fastest two-litre filling lines in the world, the Wakefield plant is also a regional distribution depot for the UK. 25,000 pallets are stored at the facility and as many as 250 lorries leave daily. The pre-existing water treatment system was built in 1989, in accordance with the then standard Coca-Cola multi-barrier policy, using polyamide coagulation and sand filtration, with de-chlorination achieved through carbon filtration. When the decision was made to upgrade the facility, in addition to providing the improved capacity, the new system was required to meet the standards laid down in the Coca-Cola &squo;red book&squo; which applies to the raw water input at all of the company&squo;s factories worldwide. This sets exacting quality requirements ‐ including a total chlorine content of less than 0.05 mg/litre and turbidity below 0.2 NTUs. THE PLANT The Wakefield plant is mains-fed from a Yorkshire Water surface WTP. The influent is stored in two 850m³ storage tanks before being pumped to four activated carbon tanks and then passing through an ion exchange unit which forms the facility&squo;s organics scavenging system ‐ organic content being a key parameter in product make-up water. From here, the water flows to the ultra filtration system, consisting of four skids with the capacity to process 9,600m³/day ‐ with a combined normal throughput capacity of 400m³/hour. Each skid comprises six tubular modules, holding 24 of the 1.5m × 250mm membrane cartridges, the 0.8mm diameter hollow fibres contained within having a filtration pore size of 0.03 microns. With over 10,000 fibres per cartridge, the effective filtration surface area of each is 40m². Every three hours each of the skids ‐ in turn ‐ is automatically taken out of service and back-washed, with the flow rate through the other skids increased to 133m³/hour to maintain the required supply to the plant. "The project increased water treatment peak capacity from an hourly 300 m³/hr to 400m³/hr." The backwash is based on double forward flow over a 30-second cycle, regularly putting around 250m³/hour through the skid; the backwash water is then itself cleaned for reuse via a recovery UF system. Once every six days each of the skids also receives a chemically-enhanced back-wash, with a ten-minute period of soaking. The UF permeate subsequently passes to semi-treated water tanks and then undergoes a final treatment process of de-aeration, cartridge filtration and UV sterilisation prior to supplying the bottling lines. Control is SCADA-based, a single-screen system displaying all the relevant operational information, including flow, temperature, pressure, pH, turbidity and chlorine levels across all stages of the process. Operational efficiency and maintenance considerations have also been taken into account during the plant design with all the pipe-work and valves being located at low level. In addition, each membrane is automatically tested each day and can be isolated for repair as necessary without compromising the rest of the plant&squo;s operation. Whereas the previous plant achieved around 90% wastewater recovery ‐ generating some 700m³/day of waste, the new system achieves significantly higher efficiency and has reduced the effluent to routinely less than 60 m³/day. This represents both major operational advantages and considerable cost savings over the year. KEY PLAYERS The plant owners are Coca-Cola Enterprises. Severn Trent Water Services was the main contractor on the project; Norit Membrane Technology supplied the UF membrane treatment system, with its sister company, Norit Südmo supplying the necessary stainless steel valves.