ELIMINATION OF BACTERIA AND VIRUSES BY FLOCCULATION IN TREATED SEWAGE

  • 1 January 1982
    • journal article
    • research article
    • Vol. 176  (5-6) , 546-552
Abstract
In laboratory experiments, the elimination of bacteria and viruses in treated sewage by different flocculants varied between 47.9 and 99.5%. Ferric and aluminum chloride reduced both groups of microorganisms to a greater extent than polyelectrolytes; cationic polymers were better than nonionic and anionic types. Combination of an inorganic flocculant with a polyelectrolyte did not increase the microbial elimination.

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