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Evaluation of Commercial Odor Control Agents for Suppressing Escherichia coli in Swine Manure Slurry
Author(s) -
Johnston Della,
Chapman Ralph,
Massé Daniel,
Topp Edward
Publication year - 2002
Publication title -
journal of environmental quality
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 171
eISSN - 1537-2537
pISSN - 0047-2425
DOI - 10.2134/jeq2002.2120
Subject(s) - odor , manure , microcosm , slurry , escherichia coli , manure management , food science , pulp and paper industry , microbiology and biotechnology , biology , chemistry , environmental science , environmental chemistry , environmental engineering , agronomy , biochemistry , gene , engineering , neuroscience
Ten commercially available manure odor control agents were evaluated in bench‐scale laboratory microcosms for their ability to inhibit or kill Escherichia coli , a commonly used indicator of fecal pollution and a potential pathogen. At manufacturer recommended rates, none of the agents reduced viable populations of E. coli in pure cultures or in swine manure slurry. However, at rates 10‐fold higher than those recommended by the manufacturer, EnviroPur rapidly reduced viable populations of E. coli Accelerated death of E. coli was observed at temperatures as low as 4°C. Chemical analysis of EnviroPur indicated that it contains alkylphenol polyethoxylates, common industrial surfactants. These results suggest that at manufacturer‐recommended rates, the odor‐controlling agents would not be effective at suppressing E. coli in stored swine manure slurry.