Short Note

Econ. Environ. Geol. 2017; 50(3): 251-256

Published online June 30, 2017

https://doi.org/10.9719/EEG.2017.50.3.251

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Use of Light Emitting Diode for Enhanced Activity of Sulfate Reducing Bacteria in Mine Drainage Treatment Process Under Extreme Cold

Yoojin Choi1, Yeon Woo Choi2, An-na Lee3 and Kyoung-Woong Kim2*

1Department of Chemical and Biomolecular Engineering (BK21 Plus Program), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
2School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
3Department of Test Planning Team, Korea Consumer Agency, Eumseong-gun 27738, Republic of Korea

Correspondence to : kwkim@gist.ac.kr

Received: May 18, 2017; Revised: June 15, 2017; Accepted: June 19, 2017

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided original work is properly cited.

Abstract

This study presents measures to enhance the efficiency of Successive Alkalinity Producing Systems(SAPS), a natural biological purification method that prevents environmental pollution arising from the release of Acid Mine Drainage(AMD) from abandoned mines into rivers and groundwater. The treatment of AMD using SAPS is based on biological processing technology that mostly involves sulfate reducing bacteria(SRB). It has been proven effective in real-world applications, and has been employed in various projects on the purification of AMD. However, seasonal decrease in temperature leads to a deterioration in the efficiency of the process because sulfatereducing activity is almost non-existent during cold winters and early spring even if SRB is able to survive. Against this backdrop, this study presents measures to enhance the activity of the SRB of the organic layer by integrating light emitting diode(LED)s in SAPS and to maintain the active temperature using LEDs in cold winters. Given that mine drainage facilities are located in areas where power cannot be easily supplied, solar cell modules are proposed as the main power source for LEDs. By conducting further research based on the present study, it will be possible to enhance the efficiency of AMD treatment under extreme cold weather using solar energy and LEDs, which will serve as an environmentally-friendly solution in line with the era of green growth.

Keywords acid mine drainage, successive alkalinity producing system, sulfate reducing bacteria, light emitting diode, solar cell

혹한기 광산배수 처리 공정 내 황산염 환원 박테리아의 활성 증진을 위한 발광다이오드의 이용 제안

최유진1 · 최연우2 · 이안나3 · 김경웅2*

1한국과학기술원 생명화학공학과, 2광주과학기술원 지구 ·환경공학부, 3한국소비자원 시험기획팀

요 약

Article

Short Note

Econ. Environ. Geol. 2017; 50(3): 251-256

Published online June 30, 2017 https://doi.org/10.9719/EEG.2017.50.3.251

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Use of Light Emitting Diode for Enhanced Activity of Sulfate Reducing Bacteria in Mine Drainage Treatment Process Under Extreme Cold

Yoojin Choi1, Yeon Woo Choi2, An-na Lee3 and Kyoung-Woong Kim2*

1Department of Chemical and Biomolecular Engineering (BK21 Plus Program), Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
2School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Republic of Korea
3Department of Test Planning Team, Korea Consumer Agency, Eumseong-gun 27738, Republic of Korea

Correspondence to:kwkim@gist.ac.kr

Received: May 18, 2017; Revised: June 15, 2017; Accepted: June 19, 2017

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided original work is properly cited.

Abstract

This study presents measures to enhance the efficiency of Successive Alkalinity Producing Systems(SAPS), a natural biological purification method that prevents environmental pollution arising from the release of Acid Mine Drainage(AMD) from abandoned mines into rivers and groundwater. The treatment of AMD using SAPS is based on biological processing technology that mostly involves sulfate reducing bacteria(SRB). It has been proven effective in real-world applications, and has been employed in various projects on the purification of AMD. However, seasonal decrease in temperature leads to a deterioration in the efficiency of the process because sulfatereducing activity is almost non-existent during cold winters and early spring even if SRB is able to survive. Against this backdrop, this study presents measures to enhance the activity of the SRB of the organic layer by integrating light emitting diode(LED)s in SAPS and to maintain the active temperature using LEDs in cold winters. Given that mine drainage facilities are located in areas where power cannot be easily supplied, solar cell modules are proposed as the main power source for LEDs. By conducting further research based on the present study, it will be possible to enhance the efficiency of AMD treatment under extreme cold weather using solar energy and LEDs, which will serve as an environmentally-friendly solution in line with the era of green growth.

Keywords acid mine drainage, successive alkalinity producing system, sulfate reducing bacteria, light emitting diode, solar cell

혹한기 광산배수 처리 공정 내 황산염 환원 박테리아의 활성 증진을 위한 발광다이오드의 이용 제안

최유진1 · 최연우2 · 이안나3 · 김경웅2*

1한국과학기술원 생명화학공학과, 2광주과학기술원 지구 ·환경공학부, 3한국소비자원 시험기획팀

Received: May 18, 2017; Revised: June 15, 2017; Accepted: June 19, 2017

요 약

    KSEEG
    Jun 30, 2024 Vol.57 No.3, pp. 281~352

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