Effects of pH and hydraulic retention time on hydrogen production versus methanogenesis during anaerobic fermentation of organic household solid waste under extreme-thermophilic temperature (70°C)

2008 ◽  
Vol 100 (6) ◽  
pp. 1108-1114 ◽  
Author(s):  
Dawei Liu ◽  
Raymond J. Zeng ◽  
Irini Angelidaki
Keyword(s):  
Hydrogen Production ◽  
Solid Waste ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Anaerobic Fermentation ◽  
Household Solid Waste ◽  
Effects Of Ph

Influences of pH and hydraulic retention time on anaerobes converting beer processing wastes into hydrogen

2005 ◽  
Vol 52 (1-2) ◽  
pp. 123-129 ◽  
Author(s):  
J.J. Lay ◽  
C.J. Tsai ◽  
C.C. Huang ◽  
J.J. Chang ◽  
C.H. Chou ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Hydraulic Retention Time ◽  
Quadratic Equation ◽  
Rt Pcr ◽  
Effects Of Ph ◽  
Processing Wastes ◽  
Chemostat Reactor ◽  
Full Factorial Experimental Design ◽  
Full Factorial

To convert high-solids organic wastes (3% w./w.) to high-value hydrogen, a full factorial experimental design was employed in planning the experiments for learning the effects of pH and hydraulic retention time (HRT) on the hydrogen production in a chemostat reactor using waste yeast obtained from beer processing wastes. For determining which experimental variable settings affect hydrogen production, predictive polynomial quadratic equation and response surface methodology were employed to determine and explain the conditions required for high-value hydrogen production. Experimental results indicate that a maximum hydrogen production rate of 460 mL/gVSS/d was obtained at pH=5.8 and HRT=32 hours. Moreover, hydrogenase targeted RT-PCR results indicate that Clostridium thermocellum and Klebsiella pneumoniae predominated.

Research of Anaerobic Fermentation Hydrogen Production Process by Continuous Flow from Contained Sugar Wastewater

2013 ◽  
Vol 779-780 ◽  
pp. 1298-1303
Author(s):  
Yang Li ◽  
Bing Huang ◽  
Yuan Yin ◽  
Ya Meng Yan ◽  
Ji Chao Xu
Keyword(s):  
Hydrogen Production ◽  
Retention Time ◽  
Continuous Flow ◽  
High Speed ◽  
Hydraulic Retention Time ◽  
Anaerobic Fermentation ◽  
Laboratory Research ◽  
Continuous Stirred Tank Reactor ◽  
Fermentation Time ◽  
Continuous Stirred Tank

The basal fermentation time and hydraulic retention time were systemically investigated about anaerobic fermentation production hydrogen process by continuous flow which is based on activated sludge for a basic strain and simulating sucrose wastewater for a substrate in a continuous stirred tank reactor. The highest hydrogen production rate was got at the fermentation time of 15h for and 6h for hydraulic retention time. The optimum run acidity (pH = 4.5 5.0) was kept through their own system circulation to hold the system state of high-speed and continuous hydrogen production. The results can really laid the groundwork for the anaerobic fermentation production hydrogen process by continuous flow from contained sugar wastewater from the laboratory research towards industrialization.

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
Sign in / Sign up

Export Citation Format

Share Document