Reduction of pathogen indicator organisms in dairy wastewater using an ecological treatment system

Journal of Environmental Quality
Jennifer A MorganJay F Martin

Abstract

Ecological treatment systems can provide a sustainable, plant-based alternative to traditional wastewater treatment. One factor essential to the success of these systems is ensuring their ability to reduce coliform concentrations in wastewater. Wastewater is the primary source of fecal contamination in aquatic ecosystems, containing total and fecal coliforms on the order of 10(8)-10(10) and 10(7)-10(9) CFU L(-1), respectively. This study assessed the ability of an ecological treatment system to reduce concentrations of total coliforms and Escherichia coli from dairy wastewater. Low strength wastewater was pumped into the system during July of 2005 and high strength in September 2005. Wastewater passes through a series of anaerobic, aerobic, and clarifier reactors and wetland cells before exiting the system. Regardless of wastewater strength, average total coliform and E. coli concentrations were consistently reduced by at least 99% from influent to effluent, with the majority of the reduction (76%) occurring in the first two reactors. Relationships between internal concentrations of solids and coliforms indicated that increased reduction of solids may further reduce coliform concentrations. Although U.S. Environmental Protectio...Continue Reading

References

Aug 1, 1990·Epidemiology and Infection·W H CheungJ W Kleevens
Oct 1, 1994·Epidemiology and Infection·D D HancockM G Paros
Jul 1, 1996·Applied and Environmental Microbiology·G WangM P Doyle
Sep 3, 1998·Applied and Environmental Microbiology·I T KudvaC J Hovde
Nov 22, 2002·Environmental Pollution·Youn-Joo AnG Peter Breidenbach
Aug 23, 2003·Journal of Environmental Quality·Francis J LarneyTim A McAllister
Oct 6, 2005·Applied and Environmental Microbiology·Michael W SandersonRobert A Smith

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Citations

Dec 7, 2010·Environmental Management·Olivier RibolziOloth Sengtaheuanghoung

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