Hydrogen production from xylose by moderate thermophilic mixed cultures using granules and biofilm up-flow anaerobic reactors

BioChem - DOS

Search

메타 데이터

바이오화학분류

- 바이오플라스틱
  1. 플라스틱
  2. 기타
- 바이오정밀화학
  1. 용매
  2. 화학제품
  3. 연료
  4. 기타
- 화장품용 기능성소재
  1. 계면활성제⁄증점제
- 의료용 화학소재
  1. 치료제
  2. 식품첨가제

논문

Hydrogen production from xylose by moderate thermophilic mixed cultures using granules and biofilm up-flow anaerobic reactors

학술지

International journal of hydrogen energy

저자명

Kongjan, Prawit; Inchan, Supattra; Chanthong, Sukonlarat; Jariyaboon, Rattana; Reungsang, Alissara; O-Thong, Sompong

초록

Abstract Continuous H2 production from xylose by granules and biofilm up-flow anaerobic reactor using moderate thermophilic mixed cultures was investigated. The maximum H2 yield of 251 mL H2/g-xylose with H2production rate of 15.1 L H2/L⋅d was obtained from granules reactor operating at the organic loading rate (OLR) of 60 g-xylose/L⋅d and hydraulic retention time (HRT) of 4 h. Meanwhile the highest H2 production rate of 13.3 L H2/L⋅d with an H2 yield of 221 mL H2/g–xylose was achieved from the biofilm reactor. Both reactors were dominated by Thermoanaerobacterium species with acetate and butyrate as main fermentation products. The microbial community of the biofilm reactor was composed of Thermoanaerobacterium species, while granules reactor was composed of Clostridium sp., Thermoanaerobacterium sp. and Caloramator sp. The granular reactor was more microbial diversity and more balance between economic efficiency in term of the hydrogen production rate and technical efficiency in term of hydrogen yield. Highlights <UL> <LI> H2 production from xylose by granules and biofilm reactor was investigated. </LI> <LI> The maximum H2 yield of 251 mL H2/g-xylose was achieved from granules reactor. </LI> <LI> The maximum H2 rate of 15.1 L H2/L⋅d was achieved from granules reactor. </LI> <LI> Granules reactor was dominant by Clostridium sp. and Thermoanaerobacterium sp. </LI> <LI> The granular reactor was more balance between economic and technical efficiency. </LI> </UL>

발행연도

2019

발행기관

Elsevier

ISSN

0360-3199

ISSN

1879-3487

권

호

페이지

pp.3317-3324