ACWA designed, built and commissioned a nanofiltration plant at Scottish Water’s Mallaig water treatment work. The process is capable of treating up to 1,764m3/day of raw Highland Loch Water – containing variable but generally high levels of suspended solids and colouration – and recover high quality permeate at a rate of 85%.
The process design of the nanofiltration plant for Scottish Water’s Mallaig Treatment Works comprises prefiltration, chemical dosing, a single pass membrane system and post treatment including remineralisation, chlorination and phosphate dosing for prevention of plumbo solvency.