Removal of enterovirus during treatment of drinking water by coagulation-flocculation-filtration

Pilot-plant studies have shown that treatment of a potable water by coagulation with ferric chloride, sedimentation in a sludge blanket Pulsator tank, and rapid sand filtration removed more than 99 per cent of added poliovirus 1. Most of the virus particles appeared to be removed during filtration,...

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Bibliographic Details
Published in:Water research (Oxford) 1975-01, Vol.9, p.953-961
Main Authors: Foliguet, J M, Doncoeur, F
Format: Article
Language:fre
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Summary:Pilot-plant studies have shown that treatment of a potable water by coagulation with ferric chloride, sedimentation in a sludge blanket Pulsator tank, and rapid sand filtration removed more than 99 per cent of added poliovirus 1. Most of the virus particles appeared to be removed during filtration, but the use of a cationic polyelectrolyte as coagulant aid improved removal of virus in the coagulation stage. The presence of organic matter was found to hinder the removal of viruses, and it is recommended that preliminary chlorination or ozonation should be carried out to reduce the content of organic matter before coagulation.
ISSN:0043-1354