Persistent Link:
http://hdl.handle.net/10150/191989
Title:
Sorption of fulvic acid on aluminum oxide and desert soil
Author:
Lawson, Peter Ward,1963-
Issue Date:
1988
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:
Four batch and four column experiments were conducted to investigate the sorption of salicylic acid onto aluminum oxide. Nine column experiments were performed using fulvic acid as a sorbate, and aluminum oxide and a desert soil with a low fraction organic carbon (f(OC)) ( 0.009 percent) as sorbents. Batch experiments provided estimates of partition coefficient that were eight to ten times larger than column estimates. A two-site kinetic model was used to interpret the observed tailing of breakthrough curves. Kp estimates for fulvic acid on desert soil ranged from 3 to 23 cm³/g. The time scale of the desorption reaction is 12 days. The majority of the sorption sites appear to be kinetically controlled. Results suggest that recharge of untreated Central Arizona Project water through desert washes will remove only 10-15 percent of the fulvic acid present after two void volumes have infiltrated. This may eventually contaminate existing groundwater supplies with trihalomethane precursors.
Type:
Thesis-Reproduction (electronic); text
LCSH Subjects:
Hydrology.; Groundwater -- Quality -- Arizona.; Artificial groundwater recharge -- Arizona.; Trihalomethanes.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Hydrology and Water Resources; Graduate College
Degree Grantor:
University of Arizona
Committee Chair:
Bales, R. C.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleSorption of fulvic acid on aluminum oxide and desert soilen_US
dc.creatorLawson, Peter Ward,1963-en_US
dc.contributor.authorLawson, Peter Ward,1963-en_US
dc.date.issued1988en_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.abstractFour batch and four column experiments were conducted to investigate the sorption of salicylic acid onto aluminum oxide. Nine column experiments were performed using fulvic acid as a sorbate, and aluminum oxide and a desert soil with a low fraction organic carbon (f(OC)) ( 0.009 percent) as sorbents. Batch experiments provided estimates of partition coefficient that were eight to ten times larger than column estimates. A two-site kinetic model was used to interpret the observed tailing of breakthrough curves. Kp estimates for fulvic acid on desert soil ranged from 3 to 23 cm³/g. The time scale of the desorption reaction is 12 days. The majority of the sorption sites appear to be kinetically controlled. Results suggest that recharge of untreated Central Arizona Project water through desert washes will remove only 10-15 percent of the fulvic acid present after two void volumes have infiltrated. This may eventually contaminate existing groundwater supplies with trihalomethane precursors.en_US
dc.description.notehydrology collectionen_US
dc.typeThesis-Reproduction (electronic)en_US
dc.typetexten_US
dc.subject.lcshHydrology.en_US
dc.subject.lcshGroundwater -- Quality -- Arizona.en_US
dc.subject.lcshArtificial groundwater recharge -- Arizona.en_US
dc.subject.lcshTrihalomethanes.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.chairBales, R. C.en_US
dc.identifier.oclc213444243en_US
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