Earticle

초록

영어

The biological reduction of carbon dioxide, one of the global warming gases, has been issued for last decade. Among the technology for biological CO2 reduction, photosynthetic bacteria and algae were mainly used for its reduction or fixation. However, there are many reports on the drawbacks of the photosynthetic bacteria for the CO2 reduction. Main drawbacks are the limitation of light transfer and the inhibition of CO2 itself for the reduction. In this study, we
employed methanogens to convert CO2 to methane with hydrogen gas. H2 is converted to methane with reducing CO2 in a novel hollow-fiber membrane biofilm reactor. All gases diffused into water through the membrane without bubbles. We have successfully operated the Hf-MBfR for stable methane production from CO2 and H2 under continuous operations over 70 days. The
conversion of CO2 depended on the pH conditions and the compositions of volatile fatty acids in liquid phase also changed by the pH conditions. It means that the microbial community could be affected by the operation condition. However, little is known about the autotrophic methanogen. We have performed DGGE and T-RFLP for bacterial and archaeal 16S rDNA to analysis of
microbial community in the reactor.

저자

• Dong-Hun JU [ Center for Environmental Technology Research, Korea Institute of Science and Technology ]
• Jeong-Hoon SHIN [ Center for Environmental Technology Research, Korea Institute of Science and Technology ]
• Byoung-In SANG [ Center for Environmental Technology Research, Korea Institute of Science and Technology ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국생물공학회 학술대회

• 간기

  반년간

• 수록기간

  1985~2013

• 십진분류

  KDC 476 DDC 576