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http://dx.doi.org/10.15681/KSWE.2016.32.6.546

Effects of Capping with Recycled Aggregates and Natural Zeolite on Inhibition of Contaminants Release from Marine Sediment  

Kim, Young-Kee (Department of Chemical Engineering and Research Center for Chemical Technology, Hankyong National University)
Shin, Woo-Seok (Seohaean Research Institute, ChungNam Institute)
Publication Information
Abstract
In this study, capping with recycled aggregate and natural zeolite in marine sediment was performed to investigate its inhibitory effect on pollutants released from sediment to seawater. An experiment was performed by capping with amendments for 60 days, and concentrations of organic matter (COD), nitrate, phosphate and metallic elements (Ni, Zn, Cu, Pb, Cd, As, and Cr) were measured. Two capping materials effectively suppressed pollutant release. Recycled aggregate showed better effectiveness for organic pollutant, nitrate and phosphate release. Meanwhile, natural zeolite was effective for metallic elements. As a result, recycled aggregate and natural zeolite can be considered as cost-effective/inexpensive capping material candidates. Also, the capping material can be selected according to the target pollutant.
Keywords
Capping; Marine sediment; Natural zeolite; Pollution; Recycled aggregate;
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Times Cited By KSCI : 4  (Citation Analysis)
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