Full TGIF Record # 53290
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Author(s):Gerba, Charles P.; Straub, Timothy M.; Rose, Joan, B.; Karpiscak, Martin M.; Foster, Kennith E.; Brittain, Richard G.
Author Affiliation:Professor and Postdoctoral Reasearch Associate, Universtiy of Arizona, Shantz Bldg., Rm. 429, Tucson, Arizona 85721; Associate Professor, University of South Florida, Department of Marine Science, 140 7th Avenue South, St. Petersburg, Florida 33701; Assistant Research Scientist and Director of Arid Lands Studies, University of Arizona, Office of Arid Lands Studies, Arid Lands Information Room 109E, Tucson, Arizona 85721; and Research Associate, University of Arizona, Architecture Administration, Architecture Room 104, Tucson, Arizona 85721.
Title:Water quality study of graywater treatment stystems
Source:Water Resources Bulletin. Vol. 31, No. 1, February 1995, p. 109-139.
# of Pages:31
Publishing Information:Bethesda, MD: American Water Resources Association.
Abstract/Contents:"A residential single family dwelling was retrofitted to recycle graywater for landscape irrigation and toilet flushing. The objective of this study was to determine improvements in graywater quality by evaluating five simple graywater treatment systems that were easily adapted to the household plumbing. The treatment systems consisted of (1) water hyacinths and sand filtration, (2) water hyacinths, copper ion disinfection, and sand filtration, (3) copper ion disinfection and sand filtration, (4) copper/silver ion disinfection and sand filtration, and (5) 20-μm cartridge filtration. Water quality parameters measured were fecal and total coliform indicator bacteria, nitrates, suspended solids, and turbidity were achieved by all systems tested. Treatment reduced nitrate concentrations to an average of 2.6 mg/liter. Reductions in suspended solids, and turbidity were influenced more by the quality of the graywater entering the treatment system than the efficiency of systems themselves. The water hyacinths and sand filtration system provided the best graywater quality in regard to average suspended solids after treatment was the water hyacinths, copper ion, and sand filtration system, and the best average turbidity was achieved by the copper/silver ion generating unit with sand filtration. All systems were capable of significant reductions in fecal indicator bacteria, suspended solids, and turbidity; however, additional treatment or disinfection would be necessary to further reduce the level of coliform and fecal coliform bacteria to achieve regulatory standards in the State of Arizona."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gerba, C. P., T. M. Straub, J. B. Rose, M. M. Karpiscak, K. E. Foster, and R. G. Brittain. 1995. Water quality study of graywater treatment stystems. Water Resour. Bull. 31(1):p. 109-139.
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