Leaching of phage from class B biosolids and potential transport through soil

Alexandra S. Chetochine, Mark L Brusseau, Charles P Gerba, Ian L Pepper

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

The objective of this study was to investigate leaching and transport of viruses, specifically those of an indigenous coliphage host specific to Escherichia coli ATTC 15597 (i.e., MS-2), from a biosolid-soil matrix. Serial extractions of 2% and 7% (solids) class B biosolid matrices were performed to determine the number of phage present in the biosolids and to evaluate their general leaching potential. Significant concentrations of coliphage were removed from the biosolids for each sequential extraction, indicating that many phage remained associated with the solid phase. The fact that phage was associated with or attached to solid particles appeared to influence the potential for release and subsequent transport of phage under saturated-flow conditions, which was examined in a series of column experiments. The results indicated that less than 8% of the indigenous coliphage initially present in the biosolids leached out of the biosolid-soil matrix. A fraction of this was subsequently transported through the sandy porous medium with minimal retention. The minimal retention observed for the indigenous phage, once released from the biosolids, was consistent with the results of control experiments conducted to examine MS-2 transport through the porous medium.

Original languageEnglish (US)
Pages (from-to)665-671
Number of pages7
JournalApplied and Environmental Microbiology
Volume72
Issue number1
DOIs
StatePublished - Jan 2006

Fingerprint

biosolids
biosolid
bacteriophages
Bacteriophages
Coliphages
leaching
Soil
coliphages
soil
Serial Extraction
porous media
matrix
porous medium
saturated flow
Escherichia coli
Viruses
virus
experiment
viruses

ASJC Scopus subject areas

  • Environmental Science(all)
  • Biotechnology
  • Microbiology

Cite this

Leaching of phage from class B biosolids and potential transport through soil. / Chetochine, Alexandra S.; Brusseau, Mark L; Gerba, Charles P; Pepper, Ian L.

In: Applied and Environmental Microbiology, Vol. 72, No. 1, 01.2006, p. 665-671.

Research output: Contribution to journalArticle

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