제강슬래그를 이용한 해양오염퇴적물 내 혼합 중금속 안정화
Stabilization of Mixed Heavy Metals in Contaminated Marine Sediment using Steel Slag
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초록
본 연구에서는 제강슬래그를 이용하여 수용액상에서 혼합 중금속의 흡착능을 평가하였다. 게다가, 제강슬래그를 안정화제로 활용하여 해양오염퇴적물 내 Ni, Zn, Cu, Pb 및 Cd에 대하여 중금속 안정화 실험을 수행하였다. 중금속 흡착 특성은 Freundlich 및 Langmuir 방정식을 이용하여 해석하였으며, 평형흡착 실험결과는 Langmuir 모델에 잘 부합되었고 Pb2+ > Cd2+ > Cu2+ > Zn2+ > Ni2+순으로 평형흡착량이 많았다. 안정화 방법은 오염퇴적물에 제강슬래그 첨가 후 150일간 습윤 양생 하였다. 연속추출 실험결과로부터, 미처리 오염퇴적물과 비교해서 Ni, Zn, Cu, Pb 및 Cd의 이온교환, 탄산염, 산화물 형태는 제강슬래그에 의해 각각 13%, 6.0%, 1.3%, 17% 및 50% 감소하였다.
Abstract
In this study, the adsorption efficiency of mixed heavy metals in aqueous solution was investigated using steel slag. Moreover, heavy-metal stabilization treatment of contaminated marine sediment was achieved using steel slag as stabilizing agents. Heavy metal adsorption was characterized using Freundlich and Langmuir equations. The equilibrium adsorption data were fitted well to the Langmuir model in steel slag. The adsorption uptake of heavy metals were higher in the order of Pb2+ > Cd2+ > Cu2+ > Zn2+ > Ni2+. The steel slage was applied for a wet-curing duration of 150 days. From the sequential extraction results, the exchangeable, carbonate, and oxides fractions of Ni, Zn, Cu, Pb, and Cd in sediment decreased by 13.0%, 6.0%, 1.3%, 17.0%, and 50.0%, respectively.
참고문헌 (22)
- Ahmaruzzaman, M., "Industrial wastes as low-cost potential adsorbents for the treatment of wastewater laden with heavy metal", Adv. Colloid Interface Sci., 166, pp.36~59 (2011)
- Chen, G.Z., "Cathodic refining in molten salts: Removal of oxygen, sulfur and selenium from static and flowing molten copper", J. Appl. Electrochem, 31, pp.155~164 (2001)
- 최익원, "해조류(Laminaria species, Ecklonia stolonifera, Gelidium amansii, Undaria pinnatifida)에 의한 중금속 생물흡착 특성", 한국환경농학회지, 24(4), pp.370~378 (2005), 한국환경농학회
- Duan, J., "Removal characteristics of Cd(II) from acidic aqueous solution by modified steel-making slag", Chem. Eng. J., 245, pp.160~167 (2014)
- Hatje, V., "Kinetics of trace element uptake and release by particles in estuarine waters:effects of pH, salinity, and particle loading", Environ. Inter., 29, pp.619~629 (2003)
- Hyun, J. H., "Heavy metal removal from a synthetic wastewater by steel slag &steel sludge", Journal of KSEE, pp.82~84 (1997)
- 김동희, "천연제올라이트와 제강전로슬래그를 이용한 세라믹 소재에 의한 산성폐수 내 중금속의 제거특성", 대한환경공학회지, 34(4), pp.239~246 (2012), 대한환경공학회[DOI]
- Liu, S. Y., "Adsorption intrinsic kinetics and isotherms of lead ions on steel slag", J. Hanzard. Mater., 173, pp.558~562 (2010)
- Guidance for Remediation·Restoration of marine contaminated sediment, "Ministry of Land, Transport and Maritime Affairs", ~ (2010)
- Misak, N. Z., "Adsorption of Co2+ and Zn2+ ions on hydrous Fe(III), Sn(IV), and Fe(III)", Sn(IV) oxides, 1996, pp.134, 31~43
- 나춘기, "흡착제의 흡착특성 규명을 위한 흡착모델의 적용성 평가(1)-흡착등온식을 이용한 평가", 대한환경공학회지, 33(8), pp.606~616 (2011), 대한환경공학회
- "Sediment quality guidelines developed for the national status and trends program" (1999)[URL]
- 박길옥, "석회 처리에 의한 오염 퇴적물 내 중금속의 형태 변화 및 용출 가능성", 생태와 환경, 41(2), pp.166~173 (2008), 한국하천호수학회
- Management of hazardous chemicals in port and harbor sediment, "Port and Airport Research Institute", Technical note of the Port and Airport Research Institute, ~, pp.No.1219 (2010)
- 신우석, "건설폐기물인 순환골재를 이용한 수용액상에서의 혼합 중금속 제거 특성", 한국해양환경•에너지학회지, 16(2), pp.115~120 (2013), 한국해양환경·에너지학회
- Tessier, A., "Sequential extraction procedure for the speciation of particulate trace metals", Anal. Chem., 51, pp.844~851 (1979)
- USEPA, "Contaminated sediment remediation guidance for hazardous waste sites", ~ (2005)
- Wang, S., "Influence of inorganic admixtures on the 11Å-tobermorite formation prepared from steel slags:XRD and FTIR analysis", Construction and Building Materials, 60, pp.42~47 (2014)
- Weber, J., "Reactions and movement of organic chemical", pp.305~334 (1989), Soil Sciences, American Madison
- Weng, C. H., "Treatment of metal industrial waste water by fly ash and cement fixation", J. Environ. Eng., 120(6), pp.1470~1487 (1994)
- Xue, Y., "Competitive adsorption of copper(II), cadmium(II), lead(II) and zinc(II) onto basic oxygen furnace slag", J. Hazard. Mater., 162, pp.391~401 (2009)
- Yang, Z., "Effect of CaO", SiO2 ratio on the preparation and crystallization of glass-ceramics from copper slag, 2014, pp.40, 7297~7305