Biological hydrogen and methane production from bagasse bioethanol fermentation residues using a two-stage bioprocess

Hai Hsuan Cheng, Liang Ming Whang, Man Chien Chung, Kun Chi Chan

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15 引文 斯高帕斯(Scopus)

摘要

This study investigated the recovery of H2 and CH4 from bagasse bioethanol fermentation residues (bagasse BEFR) using a two-stage bioprocess. In the hydrogen fermentation bioreactor (HFB), carbohydrate removal efficiency was maintained at 82-93% and the highest hydrogen yield was 8.24 mL/g COD at volumetric loading rate (VLR) of 80 kg COD/m3/day. The results indicated a positive correlation between hydrogen yield and butyrate-to-acetate ratio, which might be due to the mechanisms of lactate/acetate utilization for hydrogen production and acetogenesis occurring in the HFB. Remaining volatile fatty acids and alcohols in the HFB effluent were further utilized for methane production in methane fermentation bioreactor (MFB), in which the highest methane yield of 345.2 mL/g COD was attained at VLR of 2.5 kg COD/m3/day. Overall, the two-stage bioprocess achieved a maximum COD removal of 81% from bagasse BEFR, and converted 0.3% and 72.8% of COD in the forms of H2 and CH4, respectively.

原文English
頁(從 - 到)49-55
頁數7
期刊Bioresource technology
210
DOIs
出版狀態Published - 2016 六月 1

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

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