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Frankley Water‐Treatment Works Redevelopment: Pilot‐Scale Studies
Author(s) -
SCHOFIELD T.,
PERKINS R.,
SIMMS J. S.
Publication year - 1991
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.1991.tb00633.x
Subject(s) - environmental science , turbidity , environmental engineering , water treatment , lime , waste management , engineering , oceanography , materials science , metallurgy , geology
The redevelopment of Frankley water‐treatment works (maximum flow 450 Ml/d), which supplies soft upland‐derived water to the Birmingham area, will enable iron, manganese, colour, turbidity and natural aluminium levels to be significantly reduced below the EC drinking water quality Directive. This paper describes the pilot studies which led to the decision to build what is presently believed to be the largest dissolved‐air flotation plant in the world. The studies demonstrated, amongst other things, the effectiveness of ferric sulphate for treating coloured upland waters; the viability of stablization using carbon dioxide and lime to prevent pH variation in the distribution system; that a membrane press was the most appropriate dewatering process, and that the treated water would reduce the particulate lead concentrations in properties containing lead service pipes. Costing £0.5 million and equating to approximately 1% of redevelopment cost, the pilot study was considered to be excellent value.