Chemical coagulation of molecular weight fractions from dissolved organic matter

Persistent Link:
http://hdl.handle.net/10150/278416
Title:
Chemical coagulation of molecular weight fractions from dissolved organic matter
Author:
Bedessem, James Michael, 1966-
Issue Date:
1990
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:
Chemical coagulation of eighteen groundwater samples from the Santa Ana River Groundwater Basin was evaluated on the bench scale to determine its viability for treating these low quality groundwaters to current USEPA drinking water standards. The color and organic matter in both raw and treated water samples were characterized according to UV absorbance and DOC molecular weight fingerprints. Alum coagulation with 5 mg/L as Al successfully treated raw waters with color of up to 60 pcu and 190 mug/L THMFP to meet the standards of 15 pcu and 100 mug/L for color and THM, respectively. Variations of the coagulation process which showed merit were pH modification, pre-ozonation, and using a cationic polymer, Magnifloc 573C, as a sole coagulant. Coagulation preferentially removed high-molecular-weight material which was responsible for causing the greatest degree of color. These color bodies were not, however, responsible for the majority of the THMFP.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Engineering, Sanitary and Municipal.; Environmental Sciences.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College
Degree Grantor:
University of Arizona
Advisor:
Amy, Gary L.; Sierka, Raymond A.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleChemical coagulation of molecular weight fractions from dissolved organic matteren_US
dc.creatorBedessem, James Michael, 1966-en_US
dc.contributor.authorBedessem, James Michael, 1966-en_US
dc.date.issued1990en_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.abstractChemical coagulation of eighteen groundwater samples from the Santa Ana River Groundwater Basin was evaluated on the bench scale to determine its viability for treating these low quality groundwaters to current USEPA drinking water standards. The color and organic matter in both raw and treated water samples were characterized according to UV absorbance and DOC molecular weight fingerprints. Alum coagulation with 5 mg/L as Al successfully treated raw waters with color of up to 60 pcu and 190 mug/L THMFP to meet the standards of 15 pcu and 100 mug/L for color and THM, respectively. Variations of the coagulation process which showed merit were pH modification, pre-ozonation, and using a cationic polymer, Magnifloc 573C, as a sole coagulant. Coagulation preferentially removed high-molecular-weight material which was responsible for causing the greatest degree of color. These color bodies were not, however, responsible for the majority of the THMFP.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectEngineering, Sanitary and Municipal.en_US
dc.subjectEnvironmental Sciences.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorAmy, Gary L.en_US
dc.contributor.advisorSierka, Raymond A.en_US
dc.identifier.proquest1342643en_US
dc.identifier.bibrecord.b26592150en_US
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