Simultaneous enhancement of methane production and methane content in biogas from waste activated sludge and perennial ryegrass anaerobic co-digestion: The effects of pH and C/N ratio

被引：154

作者：

Dai, Xiaohu ^{[1
]}

Li, Xiaoshuai ^{[1
]}

Zhang, Dong ^{[1
]}

Chen, Yinguang ^{[1
]}

Dai, Lingling ^{[1
]}

机构：

[1] Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resources Reuse, 1239 Siping Rd, Shanghai 200092, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 216卷

基金：

美国国家科学基金会;

关键词：

Waste activated sludge; Perennial ryegrass; Anaerobic co-digestion; Methane production; Methane content; IN-SITU HYBRIDIZATION; SEWAGE-SLUDGE; MICROBIAL ECOLOGY; SHREDDED GRASS; FATTY-ACIDS; PRETREATMENT; PROBES; PURIFICATION; PERFORMANCE; BIOMASS;

D O I：

10.1016/j.biortech.2016.05.100

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

It is necessary to find an appropriate strategy to simultaneously enhance the methane production and methane content in biogas from waste activated sludge ( WAS) and grass co-digestion. In this study an efficient strategy, i. e., adjusting the initial pH 12 and C/N ratio 17/1, for simultaneous enhancement of methane production and methane content in biogas from WAS and perennial ryegrass co-digestion was reported. Experimental results indicated that the maximal methane production was 310 mL/gVS(add) at the optimum conditions after 30-d anaerobic digestion, which was, respectively, about 1.5- and 3.8-fold of the sole WAS and sole perennial ryegrass anaerobic digestion. Meanwhile, the methane content in biogas was about 74%, which was much higher than that of sole WAS ( 64%) or sole perennial ryegrass ( 54%) anaerobic digestion. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：323 / 330

页数：8

共 35 条

[1] PURIFICATION + PROPERTIES OF ENZYMES INVOLVED IN PROPIONIC ACID FERMENTATION [J].