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http://dx.doi.org/10.7837/kosomes.2019.25.7.914

Variation in the Properties of Contaminated Coastal Sediment with the Mixing of Alkaline Industrial By-product  

Park, Seongsik (Department of Ocean Engineering Pukyong National University)
Woo, Hee-Eun (Department of Ocean Engineering Pukyong National University)
Lee, In-Cheol (Department of Ocean Engineering Pukyong National University)
Kim, Do-Hyung (Department of Aquatic Life Medicine Pukyong National University)
Park, Jeonghwan (Department of Marine Bio-materials and Aquaculture Pukyong National University)
Kim, Jinsoo (Department of Land, Transport and Maritime Affairs Team National Assembly Research Service)
Kim, Kyunghoi (Department of Ocean Engineering Pukyong National University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.25, no.7, 2019 , pp. 914-919 More about this Journal
Abstract
A mesocosm experiment considering water exchange was conducted to evaluate the change in the properties of contaminated coastal sediment. The contaminated coastal sediment sample was prepared by mixing with granulated coal ash(GCA), which is an alkaline industrial by-product. During one month of observation time, the phosphate concentration of the GCA sample case was measured to be 19.0 and 0.4 mg/L lower than that of the control sample at the pore water and overlying water, respectively. The hydrogen sulfide concentration of the GCA sample case was 5.0 mg/L, which is significantly lower than that of the control sample(112.5 mg/L). Further addition of GCA in the sediment reduced the concentrations of phosphate and hydrogen sulfide, and could enhance the adsorption reaction, when compared to the sediment without GCA. The dissolved oxygen concentration in the overlying water of the GCA sample was measured to be 3.47 mg/L higher than the control sample. From the above results, we confirmed that GCA is an effective material for reducing pollutants in coastal sediment.
Keywords
Granulated coal ash; Phosphate; Hydrogen sulfide; Coastal contaminated sediment; Remediation;
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Times Cited By KSCI : 1  (Citation Analysis)
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