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Stabilization of Heavy Metal Contaminated Paddy Soils near Abandoned Mine with Steel Slag and CaO  

Son, Jung-Ho (Department of Environmental Engineering, Kwangwoon University)
Roh, Hoon (Department of Environmental Engineering, Kwangwoon University)
Lee, Sun-Young (Department of Environmental Engineering, Kwangwoon University)
Kim, Sung-Kyu (Department of Environmental Engineering, Kwangwoon University)
Kim, Gil-Hong (Department of Environmental Engineering, Kwangwoon University)
Park, Joong-Kyu (Department of Environmental Engineering, Kwangwoon University)
Yang, Jae-Kyu (Division of General Education, Kwangwoon University)
Chang, Yoon-Young (Department of Environmental Engineering, Kwangwoon University)
Publication Information
Journal of Soil and Groundwater Environment / v.14, no.6, 2009 , pp. 78-86 More about this Journal
Abstract
Applicability of CaO and steel slag as stabilizers in the treatment of field and paddy soils near Pungjeong mine contaminated with arsenic and cationic heavy metals was investigated from batch and column experiments. Immobilization of heavy metals was evaluated by TCLP dissolution test. Immobility of heavy metal ions was less than 15% when steel slag alone was used. This result suggests that $Fe_2O_3$ and $SiO_2$, known as the major component of steel slag, have little effect for the immobilization of heavy metal ions due to acidity of TCLP solution. Immobilization of cationic heavy metals was little affected by the ratio of CaO and steel slag while arsenic removal was increased as the ratio of steel slag to CaO increased. In the column test, concentrations of both arsenic and cationic heavy metals in effluents were below the water discharge guideline over the entire reaction period. This result can be explained by the immobilization of cationic heavy metals from the increased pH in soil solution as well as by the formation of insoluble $Ca_3(AsO_4)_2$. From this work, it is possible to suggest that arsenic and cationic heavy metals can be concurrently stabilized by application of both CaO and steel slag.
Keywords
Stabilization; Heavy metal; Arsenic; Steel slag; CaO;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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1 김정대, 2005, 강원도 폐금속광산지역의 광미와 주변토양의 중금속 오염현황 및 오염도 평가, 대한환경공학회지, 27(6), 626-634   과학기술학회마을
2 이민효, 최상일, 이재영, 이강근, 박재우, 2006, 토양지하수환경, 동화기술, 서울. p. 294
3 Jurate, K., Anders, L., and Christian, M., 2008, Stabilization of As, Cr, Cu, Pb and Zn in soil using amemdments-A review, Waste Management., 28, 215-225   DOI   ScienceOn
4 양재규, 장윤영, 2006, 비소용출에 대한 토양의 물리화학적 특성, 대한환경공학회지, 28(7), 731-737   과학기술학회마을
5 정명채, 정문영, 최연왕, 2004, 국내 휴/폐광 금속광산 주변의 중금속 환경오염 평가, 대한자원환경지질학회지, 37(1), 21-23   과학기술학회마을
6 김은이, 강완협, 박주양, 2005, 폐광산 비소 오염 토양의 특성 및 고형화/안정화, 한국폐기물학회지, 22(4), 363-371
7 Federal Remediation Technology Roundtable (FRTR), 2002, Remediation Technologies Screenin Matrix and Reference Guide, Version 4.0. USA
8 김수삼, 한상재, 2003, 동전기 오염지반 정화 기술, 구미서관, 서울, p. 197
9 서영진, 김찬용, 박만, 이동훈, 최충렬, 김광섭, 최정, 2002, 폐광산 인근 논토양과 수도의 비소함량 조사, 한국응용생명화학회지, 45(11), 152-156   과학기술학회마을
10 US EPA Method 9081, Cation Exchange Capacity of Soils, US EPA Method 1311, Toxicity Characteristic Leaching Procedure, US EPA Method 1312, Synthetic Precipitation Leaching Procedure (1998)
11 정명채, 1994, 정명채, 대한자원환경지질학회지, 27(5), 469-477
12 양재규, 유목련, 이승목, 2005, 중금속 제거용 흡착제로서의 철광사 적용, 대한 환경공학회지, 27(11), 1180-1185   과학기술학회마을
13 Tessier, A., Campbell, P.G.C., and Bisson, M., 1979, Sequential extraction procedure for the speciation of particulate trace metals, Anal. Chem., 51, 884-851   DOI   ScienceOn