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http://dx.doi.org/10.4491/KSEE.2016.38.12.635

Nitrogen Removal in Flat-Panel Air-Cathode Microbial Fuel Cell according to Various Inoculum Sources and Organic Concentration  

Park, Younghyun (Department of Civil and Environmental Engineering, Pusan National University)
Yu, Jaecheul (Department of Civil and Environmental Engineering, Pusan National University)
Nguyen, Thi Hien (Department of Civil and Environmental Engineering, Pusan National University)
Lee, Taeho (Department of Civil and Environmental Engineering, Pusan National University)
Publication Information
Journal of Korean Society of Environmental Engineers / v.38, no.12, 2016 , pp. 635-640 More about this Journal
Abstract
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 pre-nitrification 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.
Keywords
Microbial Fuel Cell; Nitrification; Denitrification; Inoculum Source;
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Times Cited By KSCI : 3  (Citation Analysis)
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