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Effect of surfactants on the sorption and transport of Cu(II) in a sandy soil : batch, column experiments and modeling

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Effect of surfactants on the sorption and transport of Cu(II) in a sandy soil : batch, column experiments and modeling

Li, Qiao (2000) Effect of surfactants on the sorption and transport of Cu(II) in a sandy soil : batch, column experiments and modeling. Masters thesis, Concordia University.

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Abstract

Recently, surfactants have shown some potential for remediation of heavy metal contaminated soil, although research in this area has been limited. Batch and column studies were conducted to investigate the sorption processes and transport behavior of Cu(II) in a sandy soil in the presence of surfactants. SDS (sodium dodecyl sulfate) and Triton X-100 were chosen as representatives of an anionic surfactant and a nonionic surfactant, respectively. Results showed that the anionic surfactant (SDS) significantly decreased the retention of Cu(II) in the sandy soil and was more effective in removal of Cu(III) than the nonionic surfactant (Triton X-100) in the both batch and column experiments. Further, both SDS and Triton X-100 appeared more effective in removing Cu(II) under increasing acidic conditions. Description of the sorption process and transport of heavy metals is necessary for identifying the fate of heavy metals in soils. The batch-generated sorption isotherms were found to be quantitatively higher than those calculated in columns. The sorption processes of Cu(III) in the soil column showed a strong nonequilibrium. Both a first-order kinetic model and a two-region model were not capable of describing the entire experimental breakthrough curve (BIC) in most instances

Divisions:Concordia University > Faculty of Engineering and Computer Science > Building, Civil and Environmental Engineering
Item Type:Thesis (Masters)
Authors:Li, Qiao
Pagination:xiv, 98 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.A.Sc.)
Program:Building, Civil and Environmental Engineering
Date:2000
Thesis Supervisor(s):Ramamurthy, A. S
ID Code:984
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:15
Last Modified:08 Dec 2010 10:17
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