Removal of As from Tailings by CPT Column Fotation

doi:10.12972/ksmer.2013.50.4.525

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2013 Vol.50, Issue 4 Preview Page Next Page

Research Paper

Removal of As from Tailings by CPT Column Fotation CPT column 부선에 의한 광물찌꺼기로부터 As 제거 연구: 김준희 · 한오형 · 최홍일 · 박제현
Jun-Hee Kim, Oh-Hyung Han, Hong-Il Choi, Je-Hyun Park

31 August 2013. pp. 525-533

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Abstract

Currently environmental issues caused by mining are on the rise and technologies for environment- friendly circulation recycling of tailing is necessary. Thus, this study attempts to identify the removal efficiency of heavy metal “As” contained in tailing through flotation of CPT column. First, using batch flotation(sub-A type), collector, frother, depressant, sulfidizing agent and activator were selected, and CPT column flotation easy for fine particle processing was applied to check the impacts of each reagent\'s dosage, airflow rate, pulp density and wash water. As a result of batch flotation, using pulp density of 20%, collector KAX 200 g/ton, frother AF65 500 ml/ton, depressant citric acid 100 g/ton, the As removal 87.55%, yield 94.57% were shown. In the result of the CPT column flotation, the result was As removal 96.50% and yield 96.80% based on the condition of pulp density 3%, collector KAX 200 g/ton, frother AF65 10 l/ton, depressant citric acid 100 g/ton, sulfidizing agent Na2S･9H2O 500 ml/ton, wash water(360 ml/min.) and air flow rate(1200 ml/min.).

Keywords

Tailing

Heavy metal

As(Arsenic)

Batch flotation(sub-A type)

CPT Column flotation

최근 광물찌꺼기에 대한 환경문제가 대두되면서 이를 친환경적으로 자원화 및 안정화할 수 있는 기술개발이 필요한 실정이다. 따라서 본 연구에서는 CPT column 부선에 의해 광물찌꺼기에 함유된 중금속 As의 제거효율을 확인하고자 하였다. 먼저 일반부선을 통해 포수제, 기포제, 억제제, 황화제 및 활성제를 선정하고 이를 미립자 처리에 용이한 CPT column 부선을 적용하여 각각의 시약 첨가량과 공기주입량, 광액농도, 세척수량에 따른 영향을 확인하였다. 일반부선을 통해 광액농도 20%, 포수제 KAX 200 g/ton, 기포제 AF65 500 ml/ton, 억제제 citric acid 100 g/ton인 조건에서 실험을 실시한 결과 As 제거율 87.55%, 산출율 94.57%인 결과를 얻을 수 있었다. 그리고 광액농도 3%, KAX 200 g/ton, 기포제 AF65 10 l/ton, 억제제 citric acid 100 g/ton, 황화제 Na2S･9H2O 500 ml/ton, 세척수 360 ml/min.와 공기주입량 1,200 ml/min.의 조건에서 CPT column 부선을 실시한 결과 As 제거율 96.50%. 산출율 96.88%인 결과를 얻을 수 있었다.

키워드

광물찌꺼기

중금속

비소(As)

일반부선(Sub-A형)

CPT column 부선

References

Finch, J.A. and Dobby, G.S., 1990, Column Flotation, 1st Ed, Pergamon Press, Oxford, USA, pp. 88-90.
Goodall, C.M. and O’Conner, C.T., 1992, “Residence Time Distribution Studies in a Flotation Column. Part 2: The Relationship Between Solids Residence Time Distribution and MetallurgicalPerformance,” International Journal of Mineral Processing, Vol. 36, p. 219.
Jeong, H.S., Lee, W.C., Cho, H.G. and Kim, S.O., 2008, “Study on Adsorption Characteristics of Arsenic on Magnetite,” J. Miner. Soc. Korea, Vol. 21, No. 4, pp. 425-434.
Jung, M.Y., Choi, Y.W. and Jung, M.C., 2006, “Properties of the Tailings from Sangdong Mine and Its Recycling,” J. of the K Society for Geosystem Engineering, Vol. 43, No. 5, pp. 486-497.
Kitchener, J.A., 1983, “The froth flotation process: Past, present and future-in brief. In: The Scientific Basis of Flotation, Part 1.,” NATO ASI Series, Vol. 75, pp. 1-26.
Kim, T.S. and Kim, M.J., 2008, “Remediation of Mine Tailings Contaminated with Arsenic and Heavy Metals: Removal of Arsenic by Soil Washing,” J. of KSEE, Vol. 30, No. 8, pp. 808-816.
Kong, M.H., Kim, Y.M. and Roh, Y., 2011, “Geochemical and Mineralogical Characterization of Arsenic-Contaminated Soil at Chonam Gold Mine, Gwangyang,” Econ. Environ. Geol., Vol. 44, No. 3, pp. 203-215.
Lee, G.M., 1995, Mineral Processing, Ban-do Publishing co. Seoul, P.268.
Lee, J.R., Park, J.H. and Kim, Y.J., 2010, “Removal of Heavy Metals from the Tailing in Samgwang Closed Mine by Using Leaching Process,” J. of the Korean Society for Geosystem Engineering, Vol. 47, No. 6, pp. 880-888.
Rubinstein, J.B., 1995, Column Flotation Processes, Designs and Practices, 1st Ed, Vol. 2, Gordon and Breach Science Publishers, Basel, Switzerland, pp. 133-145.

Information

Publisher :The Korean Society of Mineral and Energy Resources Engineers
Publisher(Ko) :한국자원공학회
Journal Title :Journal of the Korean Society of Mineral and Energy Resources Engineers
Journal Title(Ko) :한국자원공학회지
Volume : 50
No :4
Pages :525-533
DOI :https://doi.org/10.12972/ksmer.2013.50.4.525

[1] Finch, J.A. and Dobby, G.S., 1990, Column Flotation, 1st Ed, Pergamon Press, Oxford, USA, pp. 88-90.

[2] Goodall, C.M. and O’Conner, C.T., 1992, “Residence Time Distribution Studies in a Flotation Column. Part 2: The Relationship Between Solids Residence Time Distribution and MetallurgicalPerformance,” International Journal of Mineral Processing, Vol. 36, p. 219.

[3] Jeong, H.S., Lee, W.C., Cho, H.G. and Kim, S.O., 2008, “Study on Adsorption Characteristics of Arsenic on Magnetite,” J. Miner. Soc. Korea, Vol. 21, No. 4, pp. 425-434.

[4] Jung, M.Y., Choi, Y.W. and Jung, M.C., 2006, “Properties of the Tailings from Sangdong Mine and Its Recycling,” J. of the K Society for Geosystem Engineering, Vol. 43, No. 5, pp. 486-497.

[5] Kitchener, J.A., 1983, “The froth flotation process: Past, present and future-in brief. In: The Scientific Basis of Flotation, Part 1.,” NATO ASI Series, Vol. 75, pp. 1-26.

[6] Kim, T.S. and Kim, M.J., 2008, “Remediation of Mine Tailings Contaminated with Arsenic and Heavy Metals: Removal of Arsenic by Soil Washing,” J. of KSEE, Vol. 30, No. 8, pp. 808-816.

[7] Kong, M.H., Kim, Y.M. and Roh, Y., 2011, “Geochemical and Mineralogical Characterization of Arsenic-Contaminated Soil at Chonam Gold Mine, Gwangyang,” Econ. Environ. Geol., Vol. 44, No. 3, pp. 203-215.

[8] Lee, G.M., 1995, Mineral Processing, Ban-do Publishing co. Seoul, P.268.

[9] Lee, J.R., Park, J.H. and Kim, Y.J., 2010, “Removal of Heavy Metals from the Tailing in Samgwang Closed Mine by Using Leaching Process,” J. of the Korean Society for Geosystem Engineering, Vol. 47, No. 6, pp. 880-888.

[10] Rubinstein, J.B., 1995, Column Flotation Processes, Designs and Practices, 1st Ed, Vol. 2, Gordon and Breach Science Publishers, Basel, Switzerland, pp. 133-145.

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

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