Photo-fermentative hydrogen production in a 4 m 3 baffled reactor: Effects of hydraulic retention time

2017 ◽  
Vol 239 ◽  
pp. 533-537 ◽  
Author(s):  
Quanguo Zhang ◽  
Chaoyang Lu ◽  
Duu-Jong Lee ◽  
Yu-Jen Lee ◽  
Zhiping Zhang ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen

Effect of COD/SO42−ratio and Fe(II) under the variable hydraulic retention time (HRT) on fermentative hydrogen production

2009 ◽  
Vol 43 (14) ◽  
pp. 3525-3533 ◽  
Author(s):  
Jae-Hoon Hwang ◽  
Gi-Cheol Cha ◽  
Tae-Young Jeong ◽  
Dong-Jin Kim ◽  
Amit Bhatnagar ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen

scholarly journals Impact of hydraulic retention time (HRT) and pH on dark fermentative hydrogen production from glycerol

Energy ◽  
2017 ◽  
Vol 141 ◽  
pp. 358-367 ◽  
Author(s):  
Fernando Silva-Illanes ◽  
Estela Tapia-Venegas ◽  
M. Cristina Schiappacasse ◽  
Eric Trably ◽  
Gonzalo Ruiz-Filippi
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen

Continuous Fermentative Hydrogen Production from Brown Sugar Using EGSB Reactor

2010 ◽  
Vol 113-116 ◽  
pp. 1132-1137 ◽  
Author(s):  
Yong Feng Li ◽  
Yong Ming Hui ◽  
Xin Yao ◽  
Lu Wang ◽  
Qian Wen Song ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydraulic Retention Time ◽  
Loading Rate ◽  
Granular Sludge ◽  
Organic Loading Rate ◽  
Organic Loading ◽  
Hydrogen Production Rate ◽  
Brown Sugar ◽  
Fermentative Hydrogen Production ◽  
Fermentative Hydrogen

In this experiment, brown sugar was chosen as the substrate of continuous operation. A lab-scale expanded granular sludge blanket (EGSB) reactor was employed. Stable ethanol-type fermentation was formed by controlling the organic loading rate (OLR). The results showed a maximum hydrogen production rate of 5.73L / L reactor•d was achieved, under the condition that the hydraulic retention time (HRT) = 2h, OLR = 97.2kg COD/m3 reactor•d. The average hydrogen content in the biogas during the 73-day operation was 41.27%.

Effect of pH, ORP and Influent COD on Hydrogen Content in Fermentative Hydrogen Production

2010 ◽  
Vol 156-157 ◽  
pp. 877-881 ◽  
Author(s):  
Lei Lei Zhu ◽  
Bing Wang ◽  
Shuang Gao ◽  
Xin Yao ◽  
Li Cao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Hydrogen Content ◽  
Continuous Flow ◽  
Reduction Potential ◽  
Hydraulic Retention Time ◽  
Tank Reactor ◽  
Fermentative Hydrogen Production ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Fermentative Hydrogen

Fermentative hydrogen production was carried out using a continuous flow stirred tank reactor (CSTR) for the investigation of the hydrogen content in the biogas. Molasses was used as the substrate; hydraulic retention time (HRT) was 6 h; the temperature was in the range of 35±1 .It was showed that hydrogen content increased from 38% to 59% when pH decreased from 5 to 4.6 with oxidation-reduction potential (ORP) increased from -420 mV to -380 mV. The hydrogen content dropped from 50% to 30% as influent COD was improved from4000 mg/L to 6000 mg/L. Hydrogen content increased to 35% when influent COD was improved to 7000 mg/L, however decreased to 25% when influent COD was 8000 mg/L. Ethanol in terminal products is accompanied with hydrogen production but with lower hydrogen content. Butyric acid indicates higher hydrogen content than ethanol.

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