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Yongsheng Zhang
Henan Province Engineering Laboratory for Eco-architecture and the Built Environment, Henan Polytechnic University, Jiaozuo, People’s Republic of China

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Articles
Published: 22 April 2019 in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects
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The effect of different sludge on biohydrogen producing by anaerobic fermentation was investigated by a continuous flow stirred tank biofilm reactor (CSTBR) used as an anaerobic fermentation biohydrogen producing reactor and corn stalks dealt by alkali treatment of 0.5% NaOH solution selected as substrate. According to operating efficiency and microbial community, we would obtain the best startup sludge from cow manure, septic tank sludge, and nitrification sludge, which were separately cultured under the condition of aeration 7 days. Result demonstrated the reactor started with cow manure had better performance than the other two kinds of seed sludge; it would take shorter startup time in the start-up process. After the successful start-up, the reactor with cow manure as seed sludge formed ethanol-type fermentation, the biofilm structure was more uniform, the microbial community composition was more abundant, and its volatile solid (VS) removal rate and the hydrogen production were 10.2% and 11.64 L d−1 higher than the reactor with septic tank sediment as startup seed sludge, respectively, 20.4% and 23.78 L d−1 higher than the reactor with nitrification sludge as startup seed sludge, respectively. Under the same biohydrogen production and start-up condition, cow manure as startup seed sludge is the best choice for biohydrogen production.

ACS Style

Yongsheng Zhang; Jianfei Liu; Wenzhong Xu; Jing Liu; Qing Liang; Weilong Zhao; Xin Guo. Effect of seed sludge on the startup of biohydrogen producing reactor with mixed strains of cellulose biomass. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 2019, 42, 1206 -1216.

AMA Style

Yongsheng Zhang, Jianfei Liu, Wenzhong Xu, Jing Liu, Qing Liang, Weilong Zhao, Xin Guo. Effect of seed sludge on the startup of biohydrogen producing reactor with mixed strains of cellulose biomass. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2019; 42 (10):1206-1216.

Chicago/Turabian Style

Yongsheng Zhang; Jianfei Liu; Wenzhong Xu; Jing Liu; Qing Liang; Weilong Zhao; Xin Guo. 2019. "Effect of seed sludge on the startup of biohydrogen producing reactor with mixed strains of cellulose biomass." Energy Sources, Part A: Recovery, Utilization, and Environmental Effects 42, no. 10: 1206-1216.

Journal article
Published: 22 January 2019 in Processes
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This work explored the influence of gas mole fraction and activity in aqueous phase while predicting phase equilibrium conditions. In pure gas systems, such as CH4, CO2, N2 and O2, the gas mole fraction in aqueous phase as one of phase equilibrium conditions was proposed, and a simplified correlation of the gas mole fraction was established. The gas mole fraction threshold maintaining three-phase equilibrium was obtained by phase equilibrium data regression. The UNIFAC model, the predictive Soave-Redlich-Kwong equation and the Chen-Guo model were used to calculate aqueous phase activity, the fugacity of gas and hydrate phase, respectively. It showed that the predicted phase equilibrium pressures are in good agreement with published phase equilibrium experiment data, and the percentage of Absolute Average Deviation Pressures are given. The water activity, gas mole fraction in aqueous phase and the fugacity coefficient in vapor phase are discussed.

ACS Style

Weilong Zhao; Hao Wu; Jing Wen; Xin Guo; Yongsheng Zhang; Ruirui Wang. Simulation Study on the Influence of Gas Mole Fraction and Aqueous Activity under Phase Equilibrium. Processes 2019, 7, 58 .

AMA Style

Weilong Zhao, Hao Wu, Jing Wen, Xin Guo, Yongsheng Zhang, Ruirui Wang. Simulation Study on the Influence of Gas Mole Fraction and Aqueous Activity under Phase Equilibrium. Processes. 2019; 7 (2):58.

Chicago/Turabian Style

Weilong Zhao; Hao Wu; Jing Wen; Xin Guo; Yongsheng Zhang; Ruirui Wang. 2019. "Simulation Study on the Influence of Gas Mole Fraction and Aqueous Activity under Phase Equilibrium." Processes 7, no. 2: 58.