Mesophilic biogas production from fruit and vegetable waste in a tubular digester

被引:214
|
作者
Bouallagui, H
Ben Cheikh, R
Marouani, L
Hamdi, M
机构
[1] Ctr Urbain Nord, INSAT, Tunis 1080, Tunisia
[2] CITET, Tunis 1080, Tunisia
[3] ENIT, Tunis, Tunisia
关键词
fruit and vegetable waste; anaerobic digestion; tubular digester; biogas;
D O I
10.1016/S0960-8524(02)00097-4
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
A semi-continuously mixed mesophilic tubular anaerobic digester was tested for the conversion of fruit and vegetable waste (FVW) into biogas. The effect of hydraulic retention time (HRT) and the feed concentration on the extent of the degradation of the waste was examined. Varying the HRT between 12 and 20 days had no effect on the fermentation stability and pH remained between 6.8 and 7.6, but an inhibition of methanogenic bacteria was observed at HRT below 12 days. The overall performance of the reactor was depressed by changing the feed concentration from 8% to 10% TS (dry weight). By applying a feed concentration of 6% and HRT of 20 days in the tubular digester, 75% conversion efficiency of FVW into biogas with a methane content of 64% was achieved. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:85 / 89
页数:5
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