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| 식종원 및 유기물 농도 변화에 따른 평판형 외기환원전극 미생물 연료전지의 질소 제거 |
| 박영현, 유재철, Thi Hien Nguyen, 이태호 |
| 부산대학교 사회환경시스템공학과 |
| Nitrogen Removal in Flat-Panel Air-Cathode Microbial Fuel Cell according to Various Inoculum Sources and Organic Concentration |
| Younghyun Park, Jaecheul Yu, Thi Hien Nguyen, Taeho Lee |
| Department of Civil and Environmental Engineering, Pusan National University |
| Corresponding author |
Taeho Lee ,Tel: 051-510-2465, Fax: 051-514-9574, Email: leeth55@pusan.ac.kr
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Received: October 24, 2016; Revised: December 6, 2016; Accepted: December 9, 2016. Published online: December 31, 2016. |
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| ABSTRACT |
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Although microbial fuel cell (MFC) can produce electricity from organics in wastewater, nitrogen removal is required for application of process for wastewater treatment plant. This study developed flat-panel air-cathode MFCs (FA-MFCs) comprised of two large separator electrode assemblies (SEAs) and evaluate total nitrogen removal according to three inoculum sources and prenitrification acclimation. The nitrification efficiencies were >99% regardless of inoculum sources under the phase for pre-nitrification acclimation. The total nitrogen removal efficiencies of FA-MFCs without pre-nitrification acclimation were the highest at the low organic conditions (<300 mg-COD/L) under the phase for nitrification and denitrification. The increase of organic concentration influenced the total nitrogen removal efficiency, positively. The organics were removed >95% but were not used for heterotrophic denitrification totally. This study suggests that application of FA-MFC system for wastewater treatment can allow the simultaneous removal of organic and nitrogen compounds, although this affects the low electricity production. |
| Key Words:
Microbial Fuel Cell, Nitrification, Denitrification, Inoculum Source |
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