Detection of enteric viruses in treated drinking water

B. H. Keswick, C. P. Gerba, H. L. DuPont, J. B. Rose

Research output: Contribution to journalArticle

94 Scopus citations

Abstract

The occurrence of viruses in conventionally treated drinking water derived from a heavily polluted source was evaluated by collecting and analyzing 38 large-volume (65- to 756-liter) samples of water from a 9 m3/s (205 x 106 gallons [776 x 106 liters] per day) water treatment plant. Samples of raw, clarified, filtered, and chlorinated finished water were concentrated by using the filter adsorption-elution technique. Of 23 samples of finished water, 19 (83%) contained viruses. None of the nine finished water samples collected during the dry season contained detectable total coliform bacteria. Seven of nine finished water samples collected during the dry season met turbidity, total coliform bacteria, and total residual chlorine standards. Of these, four contained virus. During the dry season the percent removals were 25 to 93% for enteric viruses, 89 to 100% for bacteria, and 81% for turbidity. During the rainy season the percent removals were 0 to 43% for enteric viruses, 80 to 96% for bacteria, and 63% for turbidity. None of the 14 finished water samples collected during the rainy season met turbidity standards, and all contained rotaviruses or enteroviruses.

Original languageEnglish (US)
Pages (from-to)1290-1294
Number of pages5
JournalApplied and environmental microbiology
Volume47
Issue number6
StatePublished - Jan 1 1984
Externally publishedYes

ASJC Scopus subject areas

  • Biotechnology
  • Food Science
  • Applied Microbiology and Biotechnology
  • Ecology

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  • Cite this

    Keswick, B. H., Gerba, C. P., DuPont, H. L., & Rose, J. B. (1984). Detection of enteric viruses in treated drinking water. Applied and environmental microbiology, 47(6), 1290-1294.