ACWA's Nitreat plant at Euston  Brettenham.
ACWA's Nitreat plant at Euston Brettenham.

All of the plants will use ACWA’s ion exchange Nitreat technology, already deployed at 27 water treatment works (WTW) in the UK to ensure drinking water quality in line with DWI quality targets, within Nitrate Vulnerable Zones (NVZ).

Peter Brewer, ACWA Services’ UK general manager, said: “Our 30th contract for Nitreat marks a great start for 2017. The system is already bringing significant operational benefits for our UK water industry customers and full compliance with water quality standards. Rising nitrate levels are a continuing issue and through a programme of continuous improvement we are working hard to ensure highly reliable, low cost solutions to meet demanding cost efficiency objectives and rigorous discharge limits.”
ACWA’s Nitreat system is a counter current continuous Ion Exchange process for nitrate removal utilising a patented multi-port distribution valve. This distributes the feed and regeneration flows to multiple resin pressure vessels within the system.
The Fowlmere WTW solution will incorporate a single Nitreat skid complete with transfer pumps, self-backwashing micro strainer, a duplex water softener system, brine system for regeneration (with a single salt saturator located outside within a bunded area), waste tanks plus interconnecting pipework and valving along with a dedicated MCC control panel and associated cabling.
ACWA is responsible for process, mechanical, electrical and instrumentation works, through to commissioning for all three projects.