Field treatment and disinfection of highly turbid natural water for potable use

Persistent Link:
http://hdl.handle.net/10150/191857
Title:
Field treatment and disinfection of highly turbid natural water for potable use
Author:
Ellis, Thomas Logan.
Issue Date:
1985
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:
A drinking water treatment method for field application was developed to minimize the risk of waterborne disease among people who rely on natural surface waters for potable use. The treatment method was modeled to accommodate river rafting excursions on the Colorado River in the Grand Canyon. Because of the frequent high turbidity of the Colorado River, a two step treatment method, involving clarification with aluminum sulfate (alum) for 30 min followed by chlorine disinfection for 30 min, was developed. Treatment of turbid water with alum reduced concentrations of suspended solids, reduced total coliform (TC) and fecal coliform (FC) concentrations, and lowered pH to levels favorable for disinfection. With alum treatment, TC and EC removed by flocculation remained viable in the resulting sediment. Naturally occurring turbidity and turbidity created by resuspension of sediment reduced the disinfecting efficacy of sodium hypochlorite. Resuspension of sediment into clarified supernatant may represent a potential public health hazard.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Water -- Purification.; Waterborne infection -- Arizona -- Grand Canyon -- Prevention.; Drinking water -- Arizona -- Grand Canyon.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Microbiology and Immunology; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Sinclair, N. A.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleField treatment and disinfection of highly turbid natural water for potable useen_US
dc.creatorEllis, Thomas Logan.en_US
dc.contributor.authorEllis, Thomas Logan.en_US
dc.date.issued1985en_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.abstractA drinking water treatment method for field application was developed to minimize the risk of waterborne disease among people who rely on natural surface waters for potable use. The treatment method was modeled to accommodate river rafting excursions on the Colorado River in the Grand Canyon. Because of the frequent high turbidity of the Colorado River, a two step treatment method, involving clarification with aluminum sulfate (alum) for 30 min followed by chlorine disinfection for 30 min, was developed. Treatment of turbid water with alum reduced concentrations of suspended solids, reduced total coliform (TC) and fecal coliform (FC) concentrations, and lowered pH to levels favorable for disinfection. With alum treatment, TC and EC removed by flocculation remained viable in the resulting sediment. Naturally occurring turbidity and turbidity created by resuspension of sediment reduced the disinfecting efficacy of sodium hypochlorite. Resuspension of sediment into clarified supernatant may represent a potential public health hazard.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshWater -- Purification.en_US
dc.subject.lcshWaterborne infection -- Arizona -- Grand Canyon -- Prevention.en_US
dc.subject.lcshDrinking water -- Arizona -- Grand Canyon.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineMicrobiology and Immunologyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairSinclair, N. A.en_US
dc.identifier.oclc213414108en_US
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