The effects of humic substances on the transport of copper(II) in ground water

Persistent Link:
http://hdl.handle.net/10150/292020
Title:
The effects of humic substances on the transport of copper(II) in ground water
Author:
Mariner, Paul Edwin, 1964-
Issue Date:
1991
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:
To improve the understanding of the movement of copper plumes in natural ground water systems, the partitioning and transport of Cu(II) in the presence of natural humic substances were investigated in the lab. The humic substances were isolated from high organic content ground water in Orange County, CA (5mgCL⁻¹). Batch and titration experiments produced one-site Langmuir isotherms for the sorption of Cu(II) (0.1-5.0 mgL⁻¹) to am-SiO₂ (K(L) = 1.46Lmg-1, Q = 5.92μgg⁻¹), α-Al₂O₃ (K(L) = 100L mg⁻¹,Q = 130μgg⁻¹), and aqueous humics (pK₁ = -5.5, pL₁ = 5.1). Results of the column experiments suggest that mobile humics facilitate the transport of Cu(II) by lowering the free Cu(II) concentration. Mineral-bound humics retarded the transport of Cu(II) by increasing the concentration of immobile binding sites and by binding considerably more Cu(II) per mass carbon than aqueous humics. The measured Langmuir isotherms accurately predicted retention times and explained much of the tailing of the desorption breakthrough curves.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Hydrology.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Hydrology and Water Resources
Degree Grantor:
University of Arizona
Advisor:
Conklin, Martha H.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleThe effects of humic substances on the transport of copper(II) in ground wateren_US
dc.creatorMariner, Paul Edwin, 1964-en_US
dc.contributor.authorMariner, Paul Edwin, 1964-en_US
dc.date.issued1991en_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.abstractTo improve the understanding of the movement of copper plumes in natural ground water systems, the partitioning and transport of Cu(II) in the presence of natural humic substances were investigated in the lab. The humic substances were isolated from high organic content ground water in Orange County, CA (5mgCL⁻¹). Batch and titration experiments produced one-site Langmuir isotherms for the sorption of Cu(II) (0.1-5.0 mgL⁻¹) to am-SiO₂ (K(L) = 1.46Lmg-1, Q = 5.92μgg⁻¹), α-Al₂O₃ (K(L) = 100L mg⁻¹,Q = 130μgg⁻¹), and aqueous humics (pK₁ = -5.5, pL₁ = 5.1). Results of the column experiments suggest that mobile humics facilitate the transport of Cu(II) by lowering the free Cu(II) concentration. Mineral-bound humics retarded the transport of Cu(II) by increasing the concentration of immobile binding sites and by binding considerably more Cu(II) per mass carbon than aqueous humics. The measured Langmuir isotherms accurately predicted retention times and explained much of the tailing of the desorption breakthrough curves.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectHydrology.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineHydrology and Water Resourcesen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorConklin, Martha H.en_US
dc.identifier.proquest1344023en_US
dc.identifier.bibrecord.b26917427en_US
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