Earticle

초록

영어

A novel hydrogen fermentation technique by using polyvinyl alcohol (PVA) gel beads as a biomass carrier was investigated. The hydrogen gas was stably produced throughout the experimental period in a continuous reactor. Even though the hydrogen productivity was suddenly decrease by experimental troubles, the bacteria attached to the PVA gel beads played as an inoculum, it was promptly recovered. The hydrogen yield per glucose was not very
high (1.0 – 1.2mol-H2/mol-glucose), thus the optimization of the experimental conditions such as ORP and HRT should be considered to improve the hydrogen productivity. Bacterial community was stable during experimental period after the PVA gel beads applying, which indicated that applying of biomass carrier was specific to keep not only the biomass but also the bacteria commonly. Clostridium species were phylogenetically detected, which suggested
that these bacteria contributed to the hydrogen production in the biofilm attached to the PVA gel beads..

목차

Abstract
 Introduction
 Materials and methods
  Continuous hydrogen fermentation
  Analysis
  Bacterial community analysis by denaturinggradient gel electrophoresis (DGGE)
 Results and Discussion
  Hydrogen productivity in PVA gel beads fluidized bed reactor
  Effect of PVA gel beads applying on hydrogen production and metabolites
  Relationships between hydrogen productionand lactic acid before and after applying PVAgel beads
  Results of bacterial community analysis by PCR-DGGE
 Conclusions
 Reference

키워드

저자

• Masaharu Nakao [ Graduate School of Science and Technology, Kumamoto University ] Corresponding author
• Yasunori Kawagoshi [ Graduate School of Science and Technology, Kumamoto University ]
• Naoe Hino [ Graduate School of Science and Technology, Kumamoto University ]
• Tomonori Iwasa [ Graduate School of Science and Technology, Kumamoto University ]
• Kenji Furukawa [ Graduate School of Science and Technology, Kumamoto University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국습지학회지 [韓國濕地學會誌]

• 간기

  계간

• pISSN

  1229-6031

• eISSN

  2384-0056

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 472 DDC 570