The Swedish ozone generator supplier, Primozone, has been awarded funding of a project for removal of pharmaceutical residue from wastewater. The project has been funded by Tillväxtverket – the Swedish agency for economical and regional growth.
Primozone has received funding to build a mobile pilot scale ozone system for removal of pharmaceutical residue. The aim is to be able to prove the concept on existing wastewater treatment plants and to test and confirm the system design on different water flows and environmental conditions.
Primozone R&D head Arash Golshenas said: "We are happy to have received funding for this project. Being able to prove concepts on site is important. This means that we can recommend our clients the best possible solution based on a pilot installed at their own site. With a correctly designed system we can see that ozone will remove almost all of the residual".
Pharmaceutical residue in wastewater is a known problem
The prevalence of pharmaceutical residue in wastewater has been known for more than a decade and many different studies have been conducted to find out its influence on the environment. So far not much has been done to remove this residue but political action is starting to give results.
Many countries in Europe are now taking political action to reduce the effects of the pharmaceutical residue. One of the first countries to implement this is Switzerland where a political decision will force approximately 100 sewage plants to be equipped with systems to remove pharmaceutical residue.
Existing wastewater treatment plants are not equipped to remove pharmaceutical residue. But although the technique is available it seems that political action is needed to get the process started.
Sweden is at the forefront when it comes to research into how to reduce the amount of pharmaceutical residue in wastewater; several wastewater treatment plants has identified the problem and many Swedish universities are conducting studies of the residues effect on the environment.
Primozone CEO Anders Schening said, "We see this funding as recognition of our technology and knowledge in the area. It is also a chance for Primozone to grow – the potential market for removing pharmaceutical residue is huge and when the legal requirements are in place we will have an efficient solution ready. Our aim is to have a world leading position in this market".
Ozone is an economically viable solution
Pharmaceutical residue is hard to break down; they are constructed to be stable by nature. Consequently there are only two technologies that seem to work for removal of pharmaceutical residue, where ozone is one of the technologies. Ozone works well because it is a selective oxidant that primarily attacks electron-rich structures in molecules, such as double bonds.
Ozone is also the most sustainable technology both in terms of economy and environmental friendliness.
"According to our calculations removal of pharmaceutical residue with ozone can be done at a surprisingly low cost per m3 water treated," added Schening.
"Unlike other technologies ozone treatment leaves no residue or byproducts that need further treatment – ozone is produced by oxygen and will revert to oxygen again after it has reacted".
Primozone is the leading supplier of patented innovative ozone generators that generate far more ozone and use far less energy than the alternatives on the market. The products are highly efficient, energy efficient, reliable, easy to install and maintain, light and with a small footprint, quiet, and with a built-in flexible monitoring and control system, giving the customers more efficient and reliable water treatment, reduced operating costs and the lowest life cycle cost on the market by far.
The company’s product range consists of a series of ozone generator models, varying in size and capacity from 100g to 25000g ozone an hour. Primozone offers complete systems for ozone treatment of water with ozone generators as well as ozone application know-how, system design, oxygen generators, compressors, mixing and tank systems and control and monitoring systems.
Primozone’s customers are industries with wastewater treatment needs, municipal wastewater and drinking water treatment facilities in addition to fish farms (aquaculture) using recirculating aquaculture systems (RAS). Primozone was founded in 2000 and has its head office, research and development, and in-house production in southern Sweden.