Impact of pretreatment on solid state anaerobic digestion of yard waste for biogas production

被引：18

作者：

Zhang, Zhikai ^{[1
,2
]}

Li, Wangliang ^{[1
]}

Zhang, Guangyi ^{[1
]}

Xu, Guangwen ^{[1
]}

机构：

[1] Chinese Acad Sci, State Key Lab Multiphase Complex Syst, Inst Proc Engn, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 2014年 / 30卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Pretreatment; Anaerobic digestion; Cellulose; Biogas; VS reduction; ORGANIC FRACTION; SODIUM-HYDROXIDE; ENZYMATIC PRETREATMENT; LIGNOCELLULOSIC WASTES; CO-DIGESTION; BIOMASS; ETHANOL; METHANE; BIODEGRADABILITY; HYDROLYSIS;

D O I：

10.1007/s11274-013-1473-3

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Solid state anaerobic digestion, as a safe and environment-friendly technology to dispose municipal solid wastes, can produce methane and reduce the volume of wastes. In order to raise the digestion efficiency, this study investigated the pretreatment of yard waste by thermal or chemical method to break down the complex lignocellulosic structure. The composition and structure of pretreated yard waste were analyzed and characterized. The results showed that the pretreatment decreased the content of cellulose and hemicelluloses in yard waste and in turn improved the hydrolysis and methanogenic processes. The thermal pretreatment sample (P1) had the highest methane yield, by increasing 88 % in comparison with digesting the raw material. The maximum biogas production reached 253 mL/g volatile solids (VS). The largest substrate mass reduction was obtained by the alkaline pretreatment (P5). The VS of the alkaline-treated sample decreased about 60 % in comparison with the raw material.

引用

页码：547 / 554

页数：8

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