Effect of thermal pretreatment on the physical and chemical properties of municipal biomass waste

被引：192

作者：

Liu, Xiao ^{[1
]}

Wang, Wei ^{[1
]}

Gao, Xingbao ^{[1
,2
]}

Zhou, Yingjun ^{[3
]}

Shen, Renjie ^{[4
]}

机构：

[1] Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China

[2] Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China

[3] Kyoto Univ, Grad Sch Engn, Dept Urban & Environm Engn, Nisikyo Ku, Kyoto 6158540, Japan

[4] Beijing Univ Sci & Technol, Civil & Environm Engn Sch, Beijing 100083, Peoples R China

来源：

WASTE MANAGEMENT | 2012年 / 32卷 / 02期

基金：

国家高技术研究发展计划(863计划); 中国博士后科学基金;

关键词：

Thermal pretreatment; Municipal biomass waste; Dewatering performance; Soluble organic compounds; Anaerobic biodegradability; ACTIVATED-SLUDGE; ANAEROBIC-DIGESTION; SOLUBILIZATION;

D O I：

10.1016/j.wasman.2011.09.027

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The effects of thermal pretreatment on the physical and chemical properties of three typical municipal biomass wastes (MBWs), kitchen waste (KW), vegetable/fruit residue (VFR), and waste activated sludge (WAS) were investigated. The results show that thermal pretreatment at 175 degrees C/60 min significantly decreases viscosity, improves the MBW dewatering performance, as well as increases soluble chemical oxygen demand, soluble sugar, soluble protein, and especially organic compounds with molecular weights >10 kDa. For KW, VFR and WAS, 59.7%, 58.5% and 25.2% of the organic compounds can be separated in the liquid phase after thermal treatment. WAS achieves a 34.8% methane potential increase and a doubled methane production rate after thermal pretreatment. In contrast, KW and VFR show 7.9% and 11.7% methane decrease because of melanoidin production. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：249 / 255

页数：7

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