Royal Haskoning conducts feasibility study of desalination plant in South Africa

Netherlands-based Royal Haskoning is conducting a feasibility study in South Africa's Northern Cape to set up a 7,000m³ per day desalination plant at Abraham Villiers Bay.

The company undertook the study on behalf of Sedex Desalination, a subsidiary of Frontier Rare Earth, to establish the Zandkopsdrift seawater desalination scheme.

Under the scheme, potable and processed water produced from the desalination plant will be used at the Zandkopsdrift mine, reported

As a part of the study, the company will ascertain the configuration, size, phases, lowest project life-cycle cost and the impact on physical and social environment.

Major work in the project includes marine work comprising the sea intake and outfall works, setting up of desalination plant, bulk water supply infrastructure, bulk power supply infrastructure, and constructing road access to desalination plant.

Project manager Jack McGhie said that potable water will be withdrawn from a 20,000m³ per day capacity storage reservoir at the seawater desalination plant and pumped through a rising main to 191m above sea level for a distance of over 6.8km.

"The potable water will then gravitate 10.66km to Kotzesrus, at 167m above MSL," McGhie added.

"From Kotzesrus the water will be pumped further via a booster pump station, through a rising main to a height of 223m above MSL, over a distance of 2.3km.

"The potable water will then gravitate for the last portion of the pipeline, over a distance of 12.80km to the Zandkopdrift Mine Raw Water Storage Reservoir, 203m above MSL."

Royal Haskoning secured the contract through a competitive bidding based on its experience and track record of completing a number of desalination plants and effluent-reuse plants in the country.