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The efficacy of Chlor-floc tablets was evaluated for the removal of seeded pathogenic bacteria (Escherichia coli), coliphages and viruses (poliovirus), using both hard and river water, and a buffer medium (phosphate buffered saline).

TitleProvision of potable water utilizing a water treatment tablet
Publication TypeJournal Article
Year of Publication1995
AuthorsKfir, R, Coubrough, P, Bateman, B
Paginationp. 49-55: 3 fig., 1 tab.
Date Published1995-04-01
Keywordschlorinated compounds, coagulants/flocculants, coliphages, disinfectants, escherichia coli, faecal coliforms, laboratory testing, microbiological quality, poliovirus, rivers
Abstract

The efficacy of Chlor-floc tablets was evaluated for the removal of seeded pathogenic bacteria (Escherichia coli), coliphages and viruses (poliovirus), using both hard and river water, and a buffer medium (phosphate buffered saline). The removal of total coliforms, faecal coliforms and coliphages from river water was also studied. The tablet was found to be most effective for the removal of bacteria and viruses from hard water and buffer media. Chlor-floc was less efficient for the removal of bacteria from seeded river water. All faecal coliforms and coliphages were removed from polluted river water within 4 minutes of exposure to the tablet. The natural total coliform population in the river water was found to be more resistant to the tablet treatment than the laboratory seeded bacteria and a limited number of total coliforms were still isolated from treated river water even after 40 minutes exposure. The study confirmed previous findings that the Chlor-floc tablet is an efficient and rapid method for the purification of polluted river water to provide water of acceptable, potable quality.

Notes23 ref.
Custom 1253, 254.2

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