【摘 要】
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Cyanobacterial bloom has many adverse effects on source water quality and drinking wa-ter production.The traditional water treatment process can hardly achieve satisfactory re-moval of algae cells.This review examines the impact of pre-oxidation on the re
【机 构】
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Key Laboratory of Drinking Water Science and Technology,Research Center for Eco-Environmental Scienc
论文部分内容阅读
Cyanobacterial bloom has many adverse effects on source water quality and drinking wa-ter production.The traditional water treatment process can hardly achieve satisfactory re-moval of algae cells.This review examines the impact of pre-oxidation on the removal of cyanobacteria by solid-liquid separation processes.It was reported that the introduction of chemical oxidants such as chlorine,potassium permanganate,and ozone in algae-laden water pretreatment could improve algae removal by the subsequent solid-liquid separation processes.However,over dosed oxidants can result in more serious water quality risks due to significant algae cell lysis and undesirable intracellular organic matter release.It was suggested that moderate pre-oxidation may enhance the removal of cyanobacteria without damaging algae cells.In this article,effects of moderate pretreatment on the solid-liquid separation processes (sedimentation,dissolved air flotation,and membrane filtration) are reviewed.
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