수질 내 유해물질 감지를 위한 생물경보 모니터링 시스템 구축에 관한 연구
A Study on Construction of a Biomonitoring System for Detection ofHazardous Water Pollutants (HWPs)
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Abstract
The microbial fuel cell is a useful device which converts biochemical energy to electrical energy through the catalytic reaction of microorganisms. Electrochemically active bacteria in a microbial fuel cell can generate electric current by oxidizing organic compounds. The generated electricity shows positive correlations with BOD concentration of the feed; metabolism of electrochemically active bacteria can be affected by variation of dissolved oxygen, ammonium ion, nitrate and organic compounds in water. In the presence of toxic materials, such as Cr6+, As, Cd, metabolism of electrochemically active bacteria can be inhibited and consequently can decrease electricity generation from a microbial fuel cell. Comparing patterns of electricity generation by electrochemically active bacteria fed with water with different quality(DO, ammonia, BOD. etc) and toxicity, will allow this mechanism to be used in practical field.
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