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J Korean Soc Environ Eng > Volume 36(12); 2014 > Article
J Korean Soc Environ Eng 2014;36(12): 851-857. doi: https://doi.org/10.4491/KSEE.2014.36.12.851
세척기반처리에 의한 해양오염퇴적물에 함유된 유기 오염물질 제거 공정 중 중금속 처리 가능성
심영섭1,2, 김경련1, 김석현1,2
1한국해양과학기술원
2과학기술연합대학원대학교
Treatability of Heavy Metals in the Washing Technology of Marine Sediments Contaminated with Organic Matter
Young Sub Sim1,2, Kyoung Rean Kim1, Suk Hyun Kim1,2
1Korea Institute of Ocean Science and Technology
2University of Science and Technology
Corresponding author  Kyoung Rean Kim ,Tel: 031-400-6185, Fax: 031-408-4493, Email: kyoungrean@kiost.ac
Received: December 8, 2014;  Revised: December 17, 2014;  Accepted: December 26, 2014.  Published online: December 31, 2014.
ABSTRACT
Treatability of heavy metals in marine sediments contaminated with mainly organic matter was investigated on the basis of washing technology using oxidizers and surfactants. Sediment samples were collected at N area which expected for remediation project of contaminated marine sediment. For additives, hydrogen peroxide (H2O2) and Tween-80 were used at oxidizer and non-ionic surfactant, respectively. In experiments, sediments was mixed with sea water at the ratio of 1 : 3 than H2O2 (1 M, 3 M, 4 M, 5 M) and Tween-80 (0.05%) were added. Samples were gathered at following reaction time (10, 20, 30, 40, 50, 60, 70, 80 min and 24 h). Total Organic Carbon (TOC) was 55.2% at the conditions of 5 M H2O2 + 0.05% Tween-80 24 h. Hence total heavy metals were Cu 29.5%, Zn 42.3%, Cd 73.0% and bioavailable heavy metals were Cu 60.0%, Zn 77.7%, Cd 90.2% at the conditions of 5 M H2O2 + 0.05% Tween-80 10 min. The correlations for between bioavailable metals (Cu, Zn, Cd) and TOC were significant (Cu, Zn, Cd; r2 = 0.94, 0.85, 0.69, respectively).
Key Words: Contaminated Marine Sediments, Remediation, Heavy Metals, Additives, Washing Technology
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