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개정 토양용출시험법에 따른 비소오염토양의 고형화/안정화 공법 국내 적용성 평가

Title
개정 토양용출시험법에 따른 비소오염토양의 고형화/안정화 공법 국내 적용성 평가
Other Titles
Assessment of applicability on Solidification/Stabilization of Arsenic in contaminated Soil According to the Revised Korean Standard Leaching Test for Soil
Author
박주양
Keywords
고형화/안정화; 시멘트; 용출시험; 한국토양용출시험; Solidification/Stabilization; Cement; Leaching test; TCLP; KSLT
Issue Date
2011-01
Publisher
대한상하수도학회
Citation
상하수도학회지, 2011, 25(1), P.1-5
Abstract
Arsenic is one of the most abundant contaminant found in waste mine tailings and soil around refinery, Because of its carcinogenic property, the countries like United States of America and Europe have made stringent regulations which govern the concentration of arsenic in soil. The study focuses on solidification/stabilization for removal of arsenic from soil. Cement was used to solidify/stabilize the abandoned soil primarily contaminated with arsenic (up to 68.92 mg/kg) in and around refinery. Solidified/stabilized (s/s) forms in the range of cement contents 5-30 wt % were evaluated to determine the optimal binder content. Revised Korean standard leaching tests (KSLT), toxicity characteristic leaching procedures (TCLP), Old Korea standard leaching test and revised Korea standard leaching test were used for chemical characterization of the S/S forms. The addition of 10 % cement remarkably reduced the leachability of arsenic in contaminated soil. The concentration of As in leachate of TCLP, KSLT, and old KSLT for soil are below the standard. However that in leachate of revised KSLT is above the standard. Because of extraction fluid used in revised KSLT is very strong acid. It is arsenic in s/s with binder should be exhaustingly leached. Therefore S/S process would not be available for As treatment in soil in Korea.
URI
http://click.ndsl.kr/servlet/LinkingDetailView?cn=JAKO201119074170165&dbt=JAKO&org_code=O483&site_code=SS1483&service_code=01
ISSN
1225-7672; 2287-822x
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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