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Methane production from acidic effluent obtained from hydrogen fermentation process of food waste using continuous stirred tank reactor
Paper Type  |
Contributed Paper |
Title |
Methane production from acidic effluent obtained from hydrogen fermentation process of food waste using continuous stirred tank reactor |
Author |
Chakkrit Sreela-or, Sureewan Sittijunda, Alissara Reungsang |
Email |
alissara@kku.ac.th |
|
Abstract: This study investigated the effect of hydraulic retention time (HRT) on methane production from the acidic effluent of a hydrogen fermentation process of food waste using a continuous stirred tank reactor (CSTR). The CSTR was operated at 35 ± 3°C with HRTs of 12, 10, 8 and 6 days (d). The hydrogen content, methane yield (MY) and methane production rate (MPR) were increased with a decrease in HRT from 12 to 10 d. At the HRT of 10 d, the maximum methane content of 71.3%, MY of 155 mL CH4/g-COD and MPR of 4629.1 mL CH4/L d were achieved. However, a further decrease in HRT from 10 to 8 and 6 d resulted in a decrease of methane content, MY and MPR. The main soluble metabolite products obtained at the HRT of 10 d were butyric and acetic acids. The maximum energy production rate obtained at the optimum HRT of 10 d was 185.31 kJ/L d. |
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Start & End Page |
578 - 587 |
Received Date |
2014-02-05 |
Revised Date |
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Accepted Date |
2014-06-27 |
Full Text |
Download |
Keyword |
biogas production, continuous stirred tank reactor (CSTR), methane |
Volume |
Vol.42 No.3 (JULY 2015) |
DOI |
|
Citation |
Sreela-or C., Sittijunda S. and Reungsang A., Methane production from acidic effluent obtained from hydrogen fermentation process of food waste using continuous stirred tank reactor , Chiang Mai Journal of Science, 2015; 42(3): 578-587. |
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