CLC number: X703.1
On-line Access:
Received: 2005-08-08
Revision Accepted: 2005-11-30
Crosschecked: 0000-00-00
Cited: 11
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Wu Man-Chang, Sun Ke-Wei, Zhang Yong. Influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste[J]. Journal of Zhejiang University Science B, 2006, 7(3): 180-185.
@article{title="Influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste",
author="Wu Man-Chang, Sun Ke-Wei, Zhang Yong",
journal="Journal of Zhejiang University Science B",
volume="7",
number="3",
pages="180-185",
year="2006",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2006.B0180"
}
%0 Journal Article
%T Influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste
%A Wu Man-Chang
%A Sun Ke-Wei
%A Zhang Yong
%J Journal of Zhejiang University SCIENCE B
%V 7
%N 3
%P 180-185
%@ 1673-1581
%D 2006
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2006.B0180
TY - JOUR
T1 - Influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste
A1 - Wu Man-Chang
A1 - Sun Ke-Wei
A1 - Zhang Yong
J0 - Journal of Zhejiang University Science B
VL - 7
IS - 3
SP - 180
EP - 185
%@ 1673-1581
Y1 - 2006
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2006.B0180
Abstract: A laboratory-scale experiment was carried out to assess the influence of temperature fluctuation on thermophilic anaerobic digestion of municipal organic solid waste (MOSW). Heating failure was simulated by decreasing temperature suddenly from 55 °C to 20 °C suddenly; 2 h time is needed for temperature decrease and recovery. Under the conditions of 8.0 g/(L·d) and 15 d respectively for MOSW load and retention time, following results were noted: (1) biogas production almost stopped and VFA (volatile fatty acid) accumulated rapidly, accompanied by pH decrease; (2) with low temperature (20 °C) duration of 1, 5, 12 and 24 h, it took 3, 11, 56 and 72 h for the thermophilic anaerobic digestion system to reproduce methane after temperature fluctuation; (3) the longer the low temperature interval lasted, the more the methanogenic bacteria would decay; hydrolysis, acidification and methanogenesis were all influenced by temperature fluctuation; (4) the thermophilic microorganisms were highly resilient to temperature fluctuation.
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