Soluble microbial products (SMP) of acetotrophic methanogenesis

被引：19

作者：

Fang, HHP ^{[1
]}

Jia, XS ^{[1
]}

机构：

[1] Univ Hong Kong, Dept Civil Engn, Environm Engn Res Ctr, Hong Kong, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 1998年 / 66卷 / 03期

关键词：

acetate; batch; chemostat; degradation; methanogenesis; microbial; pH; SMP; yield;

D O I：

10.1016/S0960-8524(98)00056-X

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Experiments on acetotrophic methanogenesis were conducted at 37 degrees C in a 3.5 l chemostat reactor and ten 120 ml batch reactors. The degradation process produced substantial quantities of soluble microbial products (SMP). Converting 1 mg of acetate produced 0.0251 mg-C of SMP in the chemostat reactor but 0.0150 mg-C of SMP In batch reactors. The reaction was not pH sensitive within the range of pH 6-8. At pH 5 and 9, methanogenesis and SMP production were both inhibited. The biomass inhibited at pH 9 was able to regain activities after adjusting the pH to neutrality, but that inhibited at pH 5 was not. The biomass yield was 0.0257 and 0.0297 mg-biomass/mg-acetate in chemostat and batch reactors, respectively. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：235 / 239

页数：5

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