Flotation of Metal Precipitates in Coal Mine Drainage

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2007 Vol.44, Issue 4 Preview Page Next Page

Flotation of Metal Precipitates in Coal Mine Drainage 석탄 광산배수에 함유된 금속 침전물의 부선 특성: 김형석․조영도․안지환․한춘
Hyung-Seok Kim, Young Do Jo, Ji-Whan Ahn and Choon Han

31 August 2007. pp. 314-323

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Abstract

The possibility of the removal of iron, manganese and aluminum precipitates in artificial wastewater and coal mine drainage through flotation was investigated. The sodium oleate among anion collectors such as sodium dodecyl sulfate, aeropromotor 845 and sodium oleate showed the highest floatability to remove the insoluble metal precipitates. Insoluble metal precipitates in artificial wastewater[100 mg/L of Fe(III) ion, 50 mg/L of Mn(II) ion and 50 mg/L of Al(III) ion] and coal mine drainage [16.5 mg/L of iron, 3.2 mg/L of manganese, and 0.1 mg/L of aluminum] formed by a reaction with NaOH were effectively floated by 20 mg/L of MIBC frother and 200 mg/L of sodium oleate collector at a pH 7～9, more than 9, and 7～8, respectively and the residual concentrations of which were less than 1 mgL-1. In order to enhance the removal of iron precipitates at a pH of more than 9, when a cation flocculant, superfloc C-573 was used as a activator in addition to MIBC and sodium oleate, the iron precipitates not only in artificial wastewater but also in coal mine drainage were effectively removed even at a pH of more than 9.

Keywords

Coal mine drainage

Flotation

Sodium oleate

Metal precipitate

Removal

본 연구에서는 인공 폐수 및 석탄 광산배수에 함유된 철, 망간 그리고 알루미늄 침전물 등을 부유선별로 제거할 수 있는지를 알아보았다. Sodium dodecyl sulfate, Aeropromotor 845, 올레인산나트륨 등의 음이온 포수제들 가운데 올레인산나트륨이 철, 망간, 알루미늄 침전물을 부유시키는데 가장 효과적이었다. 인공 폐수[ Fe(III)이온 100 mg/L, Mn(II)이온 50 mg/L, Al(III)이온 50 mg/L]와 석탄광산배수[Fe(III) 16.5 mg/L, Mn(II) 3.2 mg/L, Al(III) 0.1 mg/L]에 NaOH를 첨가하여 금속 이온을 불용성 침전물로 형성시킨 후, MIBC 20 mg/L와 올레인산나트륨 200 mg/L을 첨가하여 부선한 결과, Fe(III)은 pH 7～9의 범위에서, Mn(II)은 pH 9 이상에서 그리고 Al(III)은 pH 7～8의 범위에서 각각 99.0% 이상을 부유되어 제거되었다. pH 9 이상에서 철 침전물의 제거율을 향상시키기 위해 MIBC 및 올레인산나트륨이외에 양이온 응집제인 Superfloc C-573을 첨가하여 부선한 결과, 인공폐수 뿐만 아니라 석탄광산배수에 함유된 철이 pH 9 이상에서 효과적으로 제거되었다.

키워드

석탄광산배수

부유선별

올레인산나트륨

금속 침전물

제거

References

박천영, 정연중, 김성구, 2002, “함백폐탄광 지역의 광산배수와 하상퇴적물에 대한 지구화학적 특성,” 한국자원공학회지, Vol. 39, No. 1, pp. 35-50.
석탄산업합리화사업단, 1995, 폐광에 따른 광산지역 환경개선연구(폐수, 폐석), 석탄합리화사업단, 서울, p. 268.
석탄산업합리화사업단, 1997, 사업단 10년사, 석탄합리화사업단, 서울, p. 268.
정영욱, 2004, “석탄광의 광산배수처리기술 현황 및 전망,” 자원환경지질, Vol. 37, No. 1, pp. 107-111.
조영도, 김형석, 안지환, 2007, “석탄광산배수에 함유된 중금속 이온의 침전 특성,” 한국광물학회지, Vol. 20, No. 2, pp. 125-134.
환경부, 2004, 수질환경보전법시행규칙, 별표5오염물질의 배출허용기준.
Breauwsma, A. and Lyklema, J., 1987, J. of Colloid and Interface science, Vol. 120, p. 511.
CRWFORD, R. J., 1996, “The Zeta Potential of Iron and Chromium Hydrous Oxides during Adsorption and Co precipitation of Aqueous Heavy Metals,” J. of Colloid and Interface science 181, pp. 561-570.
Cundeva, K. and Stafilov, T., 1997, “Precipitate flotation of lead and zinc and their determination by atomic absorption spectrometry,” Journal of Serbian Chemical Society, Vol. 62, No. 6, pp. 523-530.
Kim, Y. S., Kim, K. C., and Lee, C. W., 1999, “Preconcentration and determination of trace Cd(II) and Pb(II) in a water sample by organic precipitate flotation with 8-hydroxyquinoline,” Bulletin of the Korean Chemical Society, Vol. 20, No. 4, pp. 431-435.
Matis, K. A., 1995, “(Ed.), Flotation Science and Engineering,” Marcel Dekker, New York, p. 558.
Macstre J. B. et al, 2001, “Influence of tile sythesis parameters on the structural and textual properties of precipitated manganese oxides,” International journal of inorganic materials, Vol. 3, pp. 889-899.
Parekh, B. K. and Miller, J. D. (Eds.), 1999, “Advances in Flotation Technology,” SME.
Roe, L. A., 1983, “Industrial Waste Flotation,” Roeco, Nadsa, p. 228.
Rubio, J., 1998, “Environmental applications of the flotation process. In: Castro, S.H., Vergara, F., Sanchez, M. (Eds.),” Effluent Treatment in the Mining Industry. University of Conception, Chile, pp. 335-364.
Rubio, J., Schneider, I. A. H. and Aliaga, W., 1996, “New processes for heavy metals separations from wastewater streams in the mining industry In: Proceedings of Clean Technologies for the Mining Industry,” pp. 85-98.
Voronin, N. N. and Dibrov, I. A., 1999, “Classification of flotation processes in wastewater decontamination. Journal of Environmental Engineering,” pp. 469-472.
Zabel, T., 1992, “Flotation in water treatment. In: Mavros, P., Matis, K.A. (Eds.), Innovations in Flotation Technology,” Kluwer Academic Publishers, Dordrecht, MA.

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 : 44
No :4
Pages :314-323

[1] 박천영, 정연중, 김성구, 2002, “함백폐탄광 지역의 광산배수와 하상퇴적물에 대한 지구화학적 특성,” 한국자원공학회지, Vol. 39, No. 1, pp. 35-50.

[2] 석탄산업합리화사업단, 1995, 폐광에 따른 광산지역 환경개선연구(폐수, 폐석), 석탄합리화사업단, 서울, p. 268.

[3] 석탄산업합리화사업단, 1997, 사업단 10년사, 석탄합리화사업단, 서울, p. 268.

[4] 정영욱, 2004, “석탄광의 광산배수처리기술 현황 및 전망,” 자원환경지질, Vol. 37, No. 1, pp. 107-111.

[5] 조영도, 김형석, 안지환, 2007, “석탄광산배수에 함유된 중금속 이온의 침전 특성,” 한국광물학회지, Vol. 20, No. 2, pp. 125-134.

[6] 환경부, 2004, 수질환경보전법시행규칙, 별표5오염물질의 배출허용기준.

[7] Breauwsma, A. and Lyklema, J., 1987, J. of Colloid and Interface science, Vol. 120, p. 511.

[8] CRWFORD, R. J., 1996, “The Zeta Potential of Iron and Chromium Hydrous Oxides during Adsorption and Co precipitation of Aqueous Heavy Metals,” J. of Colloid and Interface science 181, pp. 561-570.

[9] Cundeva, K. and Stafilov, T., 1997, “Precipitate flotation of lead and zinc and their determination by atomic absorption spectrometry,” Journal of Serbian Chemical Society, Vol. 62, No. 6, pp. 523-530.

[10] Kim, Y. S., Kim, K. C., and Lee, C. W., 1999, “Preconcentration and determination of trace Cd(II) and Pb(II) in a water sample by organic precipitate flotation with 8-hydroxyquinoline,” Bulletin of the Korean Chemical Society, Vol. 20, No. 4, pp. 431-435.

[11] Matis, K. A., 1995, “(Ed.), Flotation Science and Engineering,” Marcel Dekker, New York, p. 558.

[12] Macstre J. B. et al, 2001, “Influence of tile sythesis parameters on the structural and textual properties of precipitated manganese oxides,” International journal of inorganic materials, Vol. 3, pp. 889-899.

[13] Parekh, B. K. and Miller, J. D. (Eds.), 1999, “Advances in Flotation Technology,” SME.

[14] Roe, L. A., 1983, “Industrial Waste Flotation,” Roeco, Nadsa, p. 228.

[15] Rubio, J., 1998, “Environmental applications of the flotation process. In: Castro, S.H., Vergara, F., Sanchez, M. (Eds.),” Effluent Treatment in the Mining Industry. University of Conception, Chile, pp. 335-364.

[16] Rubio, J., Schneider, I. A. H. and Aliaga, W., 1996, “New processes for heavy metals separations from wastewater streams in the mining industry In: Proceedings of Clean Technologies for the Mining Industry,” pp. 85-98.

[17] Voronin, N. N. and Dibrov, I. A., 1999, “Classification of flotation processes in wastewater decontamination. Journal of Environmental Engineering,” pp. 469-472.

[18] Zabel, T., 1992, “Flotation in water treatment. In: Mavros, P., Matis, K.A. (Eds.), Innovations in Flotation Technology,” Kluwer Academic Publishers, Dordrecht, MA.

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

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