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Related Experiment Videos

Processing procedures for recovering enteric viruses from wastewater sludges.

R E Stetler1, M E Morris, R S Safferman

  • 1Virology Branch, Environmental Monitoring Systems Laboratory, Cincinnati, OH.

Journal of Virological Methods
|October 1, 1992
PubMed
Summary

A new powdered beef extract (beef extract V) showed similar virus recovery from some wastewater sludge. However, it caused cell toxicity in other sludge types, unlike supplemented commercial beef extract.

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Area of Science:

  • Environmental Microbiology
  • Virology
  • Water Treatment

Background:

  • Effective virus recovery from wastewater sludge is crucial for public health monitoring.
  • Existing methods using supplemented beef extract have limitations.

Purpose of the Study:

  • To evaluate a novel powdered beef extract (beef extract V) for virus recovery from various wastewater sludge types.
  • To compare its performance against commercially available supplemented beef extract.

Main Methods:

  • Wastewater sludge samples (activated, aerobically digested, primary, and activated without primary clarification) were processed.
  • Virus recovery efficiency was assessed using beef extract V and supplemented commercial beef extract.
  • Cytotoxicity assays were performed on the BGM cell line.

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  • Metal concentrations in eluates were analyzed.

    • Main Results:

    • Beef extract V showed comparable virus recovery to supplemented beef extract for activated and aerobically digested sludge.
    • Beef extract V induced cytotoxicity in BGM cells when processing primary and activated sludge without primary clarification.
    • Supplemented commercial beef extract did not cause cytotoxicity in these samples.
    • Metal analysis did not identify the source of cytotoxicity, suggesting potential synergistic effects.

    Conclusions:

    • Beef extract V is effective for certain sludge types but problematic for others due to cytotoxicity.
    • Supplemented commercial beef extract, particularly with paste beef floc, offers a more reliable method for virus recovery from diverse wastewater sludge.
    • Further investigation into cytotoxic mechanisms is warranted.