Variation of Ferrous Ion Contents in Mine Drainage by Oxidation Reaction in Water Tanks

doi:None

All Issue

2008 Vol.45, Issue 5 Preview Page Next Page

Variation of Ferrous Ion Contents in Mine Drainage by Oxidation Reaction in Water Tanks 모형 수조내 광산배수의 산화작용에 의한 2가철 함량변화: 이동길, 임길재, 정영욱, 심연식, 박현성, 지원현
Lee, Dong-Kil, Yim, Gil-Jae, Cheong, Young-Wook, Sim, Yun-Sik, Park, Hyun-Sung and Ji, Won-Hyun

31 October 2008. pp. 546-557

PDF

Abstract

Field test has been conducted to investigate the variation of ferrous ion contents in mine drainages with different pH conditions by oxidation reaction in water tanks. The major influencing factor of oxidation were the surface area in contact with air and the depth of a tank. The mine drainage samples from the Samma-Taejung mine (pH 2.86) and Hwangji-Yuchang mine (pH 6.42) were selected. The mine drainage samples were added into 5 water tanks with both depths and diameters ranging 30~90 cm. The properties of the mine drainage including ferrous ion concentration, dissolved oxygen (DO), electric conductivity (EC), turbidity, pH and total dissolved solids (TDS) were measured with time variance. In the case of the Samma-Taejung mine drainage, the average reducing rate of ferrous ion was 31.5% after 52 hours. On the other hand, the reducing rate of ferrous ion in the Hwangji-Yuchang mine drainage was 96.1% after 48 hours. As progressing the oxidation reaction, increasing surface area in contact with air resulted in increasing the reducing rate of ferrous ion. In case of the Hwangji-Yuchang mine drainage, the shallower the depth of the tank was, the higher was the reducing rate of ferrous ion. Oxidation rate of ferrous ion in mine drainage depends on pH values. Therefore, pH should be considered for designing of a oxidation pond because the removal efficiency of ferrous ion is higher in weakly alkalic mine drainage was higher than in strongly acidic mine drainage.

Keywords

Mine drainage

Ferrous ion

Oxidation pond

본 연구에서는 pH 조건에 따라 산화조의 면적과 수심이 광산배수의 2가철 농도에 미치는 영향을 평가하였다. 본 실험을 위해 사용한 광산배수는 pH가 2.86인 삼마-태정광산 배수와 pH가 6.42인 황지 유창 광산배수이다. 산화조의 심도와 직경은 30∼90 cm 범위로 총 5개의 수조를 제작하였다. 현장에서 수조에 광산배수를 유입하고 시간이 경과하면서 2가철, 용존산소, 전기전도도, 탁도, pH 등을 측정하였다. pH가 3 미만인 삼마-태정 광산배수의 경우 52시간 경과 후 산화작용에 의한 2가철의 평균 제거율은 31.5%로 나타났다. 반면에 pH 가 6.42인 황지-유창 광산배수의 경우 48시간 만에 2가철이 평균 96.1% 제거되었다. 또한, 2가철의 제거 효율은 수조 면적이 클수록 증가하는 경향을 보였으며, pH가 6.42인 경우 심도가 낮을수록 2가철의 제거효율이 증가하는 추세가 나타났다. 2가철의 산화속도는 pH가 증가할수록 증가한다. 강 산성수에 비해 약 산성 광산배수에서 2가철의 제거효율이 높은 것으로 증명된바 현장 자연정화 처리시설에서의 산화조의 위치는 pH를 고려하면서 결정하는 것이 바람직한 것으로 판단된다.

키워드

광산배수

2가철

산화조

References

임길재, 2002, “폐탄광 광산배수 자연정화시설 정화효율성 평가사례연구,”한국자원공학회지, 제39권, 2호, pp. 112-118.
정영욱, 허원, 임길재, 지상우, 2004, “산성광산배수 처리를 위한 반응벽체 매질로서 버섯퇴비의 특성 평가,” 한국지구시스템공학회지, 제41권, 6호, pp. 476-482.
정영욱, 강상수, 장한기, 백환조, 2005, “소택지의 효율적 설계를 위한 수리학적 특성 해석,” 한국지지구시스템공학회지, 제42권, 5호, pp. 476-484.
채기탁, 윤성택, 염승준, 김남진, 민중혁, 2000, “지하수내 갈색 부유/침전물 생성에 관한 평형 열역학 및 반응속도론적 연구: 적정 양수 기법 및 탁도 제거 방안에 대한 제언,” 지하수환경학회지, 제7권, pp. 103-115.
Cheong, Y.W, Min, J.S. and Kwon, K.S., 1998, “Metal removal efficiencies of substrates for treating acid mine drainage of the Dalsung mine, South Korea,” J. Geochem. Explo., Vol. 64, pp. 147-152.
Hedin, R.S. Narin, R. W. and Kleinmann, R.L.P., 1994, “Passive treatment drainage,” Bureau of mines Information Circlular 9389, pp. 1-35.
Jage, C.R., Zipper, C.E. and Noble, R., 2001, “Factors affecting alkalinity generation by successive alkalinity-producing systems: Regression analysis,” J. Environment. Qual. 30 pp. 1015-1022.
Laine D.M. and Jarvis, A.P., 2003, “Engineering design aspects of passive in situ remediation of mining effluents,” Land Contamination & Reclamation, Vol. 11, No. 2, pp. 113-125.
NCB, 1982, Technical management of water in the coal mining industry. Mining Department, National Coal Board, London, pp. 129.
Parker, K., 2003, “Mine water management on a national scale - experiences from the Coal Authority,” Land Contamination and Reclamation, Vol. 11, No. 2, pp. 181-190.
Singer P.C. and Stumm W., 1970, “Oxygenation of Ferrous Iron,” U.S. Dept. of Interior, Fed. Water Quality Adm., Water Polln. Cont. Res. Series Rept. 14010-06/69.
Snoeyink, V.L. and Jenkins, D, Water chemistry, John Wiely $ Sons, New York, pp. 382-386.
Younger, O.L., Banwart, S. A., and Hedin, R. S., 2002, Mine water, Kluwer Academic Publishers, London, pp. 274-278.
Ziemkiewicz, P. F., Skousen, J. G. and Simmons, J, 2003, “Long-term Performance of Passive Acid Mine Drainage Treatment Systems,” Mine Water and the Environment, Springer-Verlag, Vol. 22, No. 3, pp. 118-129.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society for Geosystem Engineering
Journal Title(Ko) :한국지구시스템공학회지
Volume : 45
No :5
Pages :546-557

[1] 임길재, 2002, “폐탄광 광산배수 자연정화시설 정화효율성 평가사례연구,”한국자원공학회지, 제39권, 2호, pp. 112-118.

[2] 정영욱, 허원, 임길재, 지상우, 2004, “산성광산배수 처리를 위한 반응벽체 매질로서 버섯퇴비의 특성 평가,” 한국지구시스템공학회지, 제41권, 6호, pp. 476-482.

[3] 정영욱, 강상수, 장한기, 백환조, 2005, “소택지의 효율적 설계를 위한 수리학적 특성 해석,” 한국지지구시스템공학회지, 제42권, 5호, pp. 476-484.

[4] 채기탁, 윤성택, 염승준, 김남진, 민중혁, 2000, “지하수내 갈색 부유/침전물 생성에 관한 평형 열역학 및 반응속도론적 연구: 적정 양수 기법 및 탁도 제거 방안에 대한 제언,” 지하수환경학회지, 제7권, pp. 103-115.

[5] Cheong, Y.W, Min, J.S. and Kwon, K.S., 1998, “Metal removal efficiencies of substrates for treating acid mine drainage of the Dalsung mine, South Korea,” J. Geochem. Explo., Vol. 64, pp. 147-152.

[6] Hedin, R.S. Narin, R. W. and Kleinmann, R.L.P., 1994, “Passive treatment drainage,” Bureau of mines Information Circlular 9389, pp. 1-35.

[7] Jage, C.R., Zipper, C.E. and Noble, R., 2001, “Factors affecting alkalinity generation by successive alkalinity-producing systems: Regression analysis,” J. Environment. Qual. 30 pp. 1015-1022.

[8] Laine D.M. and Jarvis, A.P., 2003, “Engineering design aspects of passive in situ remediation of mining effluents,” Land Contamination & Reclamation, Vol. 11, No. 2, pp. 113-125.

[9] NCB, 1982, Technical management of water in the coal mining industry. Mining Department, National Coal Board, London, pp. 129.

[10] Parker, K., 2003, “Mine water management on a national scale - experiences from the Coal Authority,” Land Contamination and Reclamation, Vol. 11, No. 2, pp. 181-190.

[11] Singer P.C. and Stumm W., 1970, “Oxygenation of Ferrous Iron,” U.S. Dept. of Interior, Fed. Water Quality Adm., Water Polln. Cont. Res. Series Rept. 14010-06/69.

[12] Snoeyink, V.L. and Jenkins, D, Water chemistry, John Wiely $ Sons, New York, pp. 382-386.

[13] Younger, O.L., Banwart, S. A., and Hedin, R. S., 2002, Mine water, Kluwer Academic Publishers, London, pp. 274-278.

[14] Ziemkiewicz, P. F., Skousen, J. G. and Simmons, J, 2003, “Long-term Performance of Passive Acid Mine Drainage Treatment Systems,” Mine Water and the Environment, Springer-Verlag, Vol. 22, No. 3, pp. 118-129.

Journal of the Korean Society of Mineral and Energy Resources Engineers ISSN:2288-0291(Print) 2288-2790(Online) 한국자원공학회지

All Issue