基质浓度对阶梯式挡板生物反应器中光合发酵产氢的影响。
Effect of substrate concentration on hydrogen production by photo-fermentation in the pilot-scale baffled bioreactor.
机构信息
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Agricultural Ministry, Henan Agricultural University, Zhengzhou 450002, China; Collaborative Innovation Center of Biomass Energy, Henan Province, Zhengzhou 450002, China.
Key Laboratory of New Materials and Facilities for Rural Renewable Energy of Agricultural Ministry, Henan Agricultural University, Zhengzhou 450002, China.
出版信息
Bioresour Technol. 2018 Jan;247:1173-1176. doi: 10.1016/j.biortech.2017.07.122. Epub 2017 Jul 22.
Effect of substrate concentration on photo-fermentative hydrogen production was studied with a self-designed 4m pilot-scale baffled photo-fermentative hydrogen production reactor (BPHR). The relationships between parameters, such as hydrogen production rate (HPR, mol H/m/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/m/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/m/d was obtained when organic loading rate was maintained at 20g/L/d during continuous bio-hydrogen production.
采用自行设计的 4m 级挡板式光合产氢反应器（BPHR）研究了底物浓度对光合产氢的影响。考察了光合产氢过程中各参数（如产氢率（HPR，mol H/m/d）、氢气浓度、pH 值、氧化还原电位、生物质浓度（挥发性悬浮固体，VSS）和还原糖浓度）之间的关系。在底物浓度为 20g/L 时，在腔室#3 中达到了 202.64±8.83mol/m/d 的最高产氢率。氢气含量在 42.19±0.94%-49.71±0.27%之间。当有机负荷率从 3.3g/L/d 增加到 20g/L/d 时，产氢率增加，当有机负荷率进一步增加到 25g/L/d 时，产氢率降低。当连续生物制氢过程中有机负荷率保持在 20g/L/d 时，可获得 148.65±4.19mol/m/d 的最大产氢率。
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