Persistent Link:
http://hdl.handle.net/10150/191907
Title:
Water quality of gray water for reuse
Author:
Sun, Gwo-Shing,1959-
Issue Date:
1986
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
This study was designed to evaluate the safety of gray water for reuse purposes. The physical and chemical quality of treated gray water met water reuse standards set by the State of Arizona for surface irrigation purposes. The number of microorganisms in gray water significantly decreased after biological treatment and sand filtration. However, the number of fecal coliform bacteria in treated gray water was still higher than the standard for reuse as set by the State of Arizona for surface irrigation. This is also true for rain water which was stored in a tank. No indigenous Salmonella were isolated from gray water. It was found that both Salmonella typhimurium and Shigella dysenteriae, seeded into gray water, can persist for at least several days. This implied that there may be some risk associated with gray water reuse when the gray water contains these pathogenic bacteria.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Water conservation -- Arizona -- Tucson.; Water reuse -- Arizona -- Tucson.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Nutrition and Food Science; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Gerba, Charles P.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleWater quality of gray water for reuseen_US
dc.creatorSun, Gwo-Shing,1959-en_US
dc.contributor.authorSun, Gwo-Shing,1959-en_US
dc.date.issued1986en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThis study was designed to evaluate the safety of gray water for reuse purposes. The physical and chemical quality of treated gray water met water reuse standards set by the State of Arizona for surface irrigation purposes. The number of microorganisms in gray water significantly decreased after biological treatment and sand filtration. However, the number of fecal coliform bacteria in treated gray water was still higher than the standard for reuse as set by the State of Arizona for surface irrigation. This is also true for rain water which was stored in a tank. No indigenous Salmonella were isolated from gray water. It was found that both Salmonella typhimurium and Shigella dysenteriae, seeded into gray water, can persist for at least several days. This implied that there may be some risk associated with gray water reuse when the gray water contains these pathogenic bacteria.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshWater conservation -- Arizona -- Tucson.en_US
dc.subject.lcshWater reuse -- Arizona -- Tucson.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineNutrition and Food Scienceen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairGerba, Charles P.en_US
dc.contributor.committeememberBerry, James W.en_US
dc.contributor.committeememberPrice, Ralph L.en_US
dc.identifier.oclc213298196en_US
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