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University of New Hampshire

Civil & Environmental Engineering

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2007

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Full-Text Articles in Engineering

Leaching Properties Of Estuarine Harbor Sediment Before And After Electrodialytic Remediation, Kevin H. Gardner, Gunvor M. Nystroem, Deana A. Aulisio May 2007

Leaching Properties Of Estuarine Harbor Sediment Before And After Electrodialytic Remediation, Kevin H. Gardner, Gunvor M. Nystroem, Deana A. Aulisio

Civil & Environmental Engineering

Electrodialytic remediation (EDR) can be used to extract heavy metals from a variety of different media. In this work, contaminated harbor sediments from two locations in the United States and one in Norway were subjected to EDR, and were compared with batch extractions conducted with the sediment. pH-dependent leaching tests were used to evaluate changes in leaching properties of treated and control sediments. Significant fractions of total concentrations were removed during treatment (35–95% with an average of 75% for all sediments and elements investigated). The release of elements in pH-dependent leaching tests, however, demonstrated equal or greater leaching from treated …