| Literature DB >> 28947071 |
Chaoyang Lu1, Zhiping Zhang2, Xuehua Zhou2, Jianjun Hu1, Xumeng Ge3, Chenxi Xia2, Jia Zhao2, Yi Wang1, Yanyan Jing2, Yameng Li2, Quanguo Zhang4.
Abstract
Effect of substrate concentration on photo-fermentative hydrogen production was studied with a self-designed 4m3 pilot-scale baffled photo-fermentative hydrogen production reactor (BPHR). The relationships between parameters, such as hydrogen production rate (HPR, mol H2/m3/d), hydrogen concentration, pH value, oxidation-reduction potential, biomass concentration (volatile suspended solids, VSS) and reducing sugar concentration, during the photo-fermentative hydrogen production process were investigated. The highest HPR of 202.64±8.83mol/m3/d was achieved in chamber #3 at a substrate concentration of 20g/L. Hydrogen contents were in the range of 42.19±0.94%-49.71±0.27%. HPR increased when organic loading rate was increased from 3.3 to 20g/L/d, then decreased when organic loading rate was further increased to 25g/L/d. A maximum HPR of 148.65±4.19mol/m3/d was obtained when organic loading rate was maintained at 20g/L/d during continuous bio-hydrogen production.Entities:
Keywords: Baffled photo-fermentative hydrogen production reactor; Organic loading rate; Photosynthetic bacteria; Substrate concentration
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Year: 2017 PMID： 28947071 DOI： 10.1016/j.biortech.2017.07.122
Source DB: PubMed Journal: Bioresour Technol ISSN： 0960-8524 Impact factor: 9.642