Treatment role

Tasked with replacing ageing pumps for disinfectant and coagulant processes at Thames Water's Advanced Water Treatment Works in Walton, engineering, consulting and construction company Black & Veatch opted for peristaltic pumps from the 520 and 620 series from Watson Marlow Pumps Group.

Offering continuous high pressure and quick release functionality, the 620 series close-coupled units pump inorganic polymer coagulants which perform well with thick flocs and offer fast sedimentation. At the disinfection stage sodium hypochlorite is added to contact tanks by the 520 series pumps.