New desalination contracts awarded to Severn Trent Services

摘要

Fort Washington, Pennsylvania-based Severn Trent Services was picked to supply TETRA~® LP Block™ filter underdrain systems for use in pre-treatment filtration at desalination plants in North Africa and South America designed and built by ACCIONA Agua, of Spain. The contracts are the latest of a number of recent orders for the technology in the desalination market, including an order for their use at the largest desalination plant in Europe. Forming the floor of rapid gravity sand filters to treat seawater prior to RO membranes, the system supports the sand media during filter operation and provides excellent air and water distribution during backwashing to enhance filter cleaning and extend run times.