<P><B>Abstract</B></P> <P>In this study, the metabolism of methanol and changes in an archaeal community were examined in a bioelectrochemical anaerobic digestion sequencing batch reactor with a copper-coated graphite ca...
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https://www.riss.kr/link?id=A107438947
2018
-
SCI,SCIE,SCOPUS
학술저널
398-406(9쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P><B>Abstract</B></P> <P>In this study, the metabolism of methanol and changes in an archaeal community were examined in a bioelectrochemical anaerobic digestion sequencing batch reactor with a copper-coated graphite ca...
<P><B>Abstract</B></P> <P>In this study, the metabolism of methanol and changes in an archaeal community were examined in a bioelectrochemical anaerobic digestion sequencing batch reactor with a copper-coated graphite cathode (BEAD-SBR<SUB>Cu</SUB>). Copper-coated graphite cathode produced methanol from food waste. The BEAD-SBR<SUB>Cu</SUB> showed higher methanol removal and methane production than those of the anaerobic digestion (AD)-SBR. The methane production and pH of the BEAD-SBR<SUB>Cu</SUB> were stable even under a high organic loading rate (OLR). The hydrogenotrophic methanogens increased from 32.2 to 60.0%, and the hydrogen-dependent methylotrophic methanogens increased from 19.5 to 37.7% in the bulk of BEAD-SBR<SUB>Cu</SUB> at high OLR. Where methanol was directly injected as a single substrate into the BEAD-SBR<SUB>Cu</SUB>, the main metabolism of methane production was hydrogenotrophic methanogenesis using carbon dioxide and hydrogen released by the oxidation of methanol on the anode through bioelectrochemical reactions.</P> <P><B>Highlights</B></P> <P> <UL> <LI> BEAD-SBR<SUB>Cu</SUB> produced methanol from food waste increasing methylotrophic methanogens. </LI> <LI> BEAD-SBR<SUB>Cu</SUB> removed COD and produced methane with no pH decrease at high OLR. </LI> <LI> Methanol is converted to methane by hydrogenotrophic and methylotrophic methanogens. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>