탄산화법을 이용한 광산배수 처리 기초연구
A Fundamental Study on Treatment of Mine Drainage using Carbonation Process
3
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
침강성 탄산칼슘을 제조하는 방법의 하나인 탄산화법을 이용하여 휴･폐광산으로부터 배출되는 광산배수를 처리하고자 연구를 수행하였다. 광산배수의 탄산화처리는 500 ml의 인공광산배수에 소석회 포화농도 0.795g을 투입하고 교반속도(100, 200, 300 rpm)와 CO2 주입량(0.5, 1, 2 L/min)을 달리하여 실시하고, CO2를 주입하지 않은 중화처리의 결과와 비교 분석하였다. 실험결과 중화처리는 전체적으로 중금속의 제거가 효율적인 것으로 나타났으나, 탄산화처리는 Al, Cu만 100% 제거가 가능하였고, Fe, Zn는 일부조건에서 제거가 가능하였으며, Mn, Mg는 처리에 다소 비효율적인 것으로 나타났다. 침전물을 대상으로 XRD, SEM-EDS 분석을 실시한 결과 탄산화처리 침전물은 방해석으로 중화처리 침전물은 비정질 또는 석고로 확인되었다.
Abstract
This study has been carried out in order to treat mine drainage from abandoned mine using carbonation process, one of the calcium carbonate precipitating methods. Carbonation treatment of mine drainage were conducted with the 500 ml of artificial mine drainage added 0.795 g of Hydrated lime in various experimental conditions of stirring speed (100, 200, 300 rpm) and CO2 injection rate (0.5, 1, 2 L/min). Results of carbonation treatment were compared with those of neutralization treatment without CO2 injection. While neutralization treatment showed generally an efficient removal of heavy metals, carbonation treatment resulted in total removal of Al and Cu, an efficient removal of Fe and Zn in some conditions, and an inefficient removal of Mn and Mg. Precipitates identified by XRD and SEM-EDS were calcite in the carbonation treatment, and amorphous or gypsum in the neutralization treatment.
참고문헌 (30)
- 정영욱, "슬러지 반복 중화-침전법에 의한 광산배수 슬러지 및 수질 특성 변화", 한국자원공학회지, 41(5), pp.389~394 (2004), 한국자원공학회
- Cravotta III, C. A., "Dissolved metals and associated constituents in abandoned coal-mine discharges, Pennsylvania, USA. Part 2: Geochemical controls on constituent concentrations", Applied Geochemistry, 23, pp.203~226 (2008)
- Goldberg, P., "CO2 Mineral sequestration Studies-Introduction, Issues and Plans", Workshop on CO2 Sequestration with Minerals (2001)
- Ha, H., "Studies on the preparation of precipitated calcium carbonate(Ⅰ): Formation and transformation of amorphous calcium carbonate", J. of Korean Ind. & Eng. Chemistry., 3(3), pp.522~526 (1992)
- Herrera, S. P., "Acid mine drainage treatment through a two-step neutralization ferrite-formation process in northern Japan: Physical and chemical character-ization of the sludge", Mineral Engineering, 20, pp.1309~1314 (2007)
- Huijgen, W.J.J., "Carbon dioxide sequestration by mineral carbonation" (2003), Energy Research Centre of the Netherlands
- 백승한, "건설현장에서 발생되는 산성암석배수의 발생 예측", 한국자원공학회지, 44(1), pp.82~93 (2007), 한국자원공학회
- 조영도, "석탄광산배수에 함유된 중금속 이온의 침전 특성", 한국광물학회지, 20(2), pp.125~134 (2007), 한국광물학회
- Johnson, D.B., "Acid mine drainage remediation options: A review", Science of the Total Environmental, 338, pp.3~14 (2005)
- Juvekar, V.A., "Absorption of CO2 in a suspension of lime", Chemical Engineering Science, 28, pp.825~837 (1973)
- 강동환, "일광 폐광산 갱내에서 유래된 산성광산배수의 중금속 유출특성", 지질공학, 20(1), pp.79~87 (2010), 대한지질공학회
- 강한, "폐광산으로부터 유출되는 산성광산배수 중화처리를 위한 반응조 실험 연구", 자원환경지질, 41(1), pp.33~45 (2008), 대한자원환경지질학회
- 김종범, "콘크리트 재생골재를 이용한 산성광산배수 중화처리", 대한환경공학회지, 24(1), pp.21~30 (2002), 대한환경공학회
- Kim, J. Y., "Assessment of applicability of marine shells as neutralizer for the treatment of acid mine drainage", J. of The Korean Society of Mineral and Energy Resources Engineering, 36(5), pp.319~327 (1999)
- Korea Mine Reclamation Corporation, "White paper on mine damage management", pp.35~ (2012)
- Kuyucak, N., "Technical feasibility studies and uses of treated acid mine drainage at Kingsmill tunnel, Peru", Proceedings of 6th ICARD, pp.771~778 (2003)
- 이현철, "광물탄산화를 이용한 폐광미의 안정화처리 및 CO2 고정화 기초 연구", 한국자원공학회지, 49(1), pp.26~36 (2012), 한국자원공학회
- 이현철, "탄산화법을 이용한 용존 비소 제거에 관한 연구", 한국자원공학회지, 50(1), pp.70~79 (2013), 한국자원공학회
- Lyu, K. K., "The study on neutralization treatment for acid mine drainage by using limestone", J. of The Korean Society of Mineral and Energy Resources Engineering, 33, pp.226~232 (1996)
- Lyu, S. G., "Quantitative analysis of calcium carbonate polymorphs by X-ray diffraction", Korean Chemical Engineering Research, 36(4), pp.543~547 (1998)
- McDonald, D. M., "The effect of neutralization method and reagent on the rate of Cu and Zn release from acid rock drainage treatment sludges", Proceedings of the 7th ICARD, pp.1198~1218 (2006)
- Murdock, D. J., "Treatment of acid mine drainage by the high density sludge process", Proceedings of the International Land Reclamation and Mine Drainage Conference and Third International Conference on the Abatement of Acid Drainage, 1, pp.241~249 (1994)
- National lime association, "Lime Terminology" (2007), Standards & Properties
- 오재일, "국내 산성광산배수(AMD)의 수질 특성 분석", 대한토목학회 논문집B, 23(6B), pp.587~596 (2003), 대한토목학회
- Park, H. S., "Field application and maintenance of the passive treatment system depending on chemical characteristics of mine water", 박사, pp.2011
- Park, S. S., "Study on the preparation of calcium carbonate from the waste solution of industry", J. of Korea Solid Wastes Engineering Society, 12(2), pp.199~206 (1995)
- 박영구, "소석회를 이용한 산성광산배수 중화처리", 공업화학, 16(3), pp.391~396 (2005), 한국공업화학회
- Shin, D. W., "Status and prospects of the inorganic industry: lime･limestone industry", Chemical Industry and Technology, 2(1), pp.40~48 (1984)
- US EPA, "Design manual: Neutralization of acid mine drainage", ~ (1983)
- Younger, P. L., "Mine Water hydrology, pollution, remediation", pp.292~294 (2002), Kluwer Academic Publishers