Effect of thermal-alkaline pretreatment on the anaerobic digestion of streptomycin bacterial residues for methane production

被引：54

作者：

Zhong, Weizhang ^{[1
]}

Li, Zaixing ^{[1
]}

Yang, Jingliang ^{[1
]}

Liu, Chun ^{[1
]}

Tian, Baokuo ^{[1
]}

Wang, Yongjun ^{[2
]}

Chen, Ping ^{[2
]}

机构：

[1] Hebei Univ Sci & Technol, Sch Environm Sci & Engn, Shijiazhuang 050018, Peoples R China

[2] Environm Protect Inst NCPC, Shijiazhuang 050015, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2014年 / 151卷

关键词：

Streptomycin bacterial residue; Anaerobic digestion; Methane; Thermal-alkaline pretreatment; WASTE-ACTIVATED-SLUDGE; ALGAE;

D O I：

10.1016/j.biortech.2013.10.100

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The anaerobic digestion of streptomycin bacterial residues, solutions with hazardous waste treatments and bioenergy recovery, was tested in laboratory-scale digesters at 35 degrees C at various organic loading rates (OLRs). The methane production and biomass digestion were efficient at OLRs below 2.33 gVS L-1 d(-1) but were deteriorated as OLR increased because of the increased total ammonia nitrogen (TAN) concentration from cell protein decay. The thermal-alkaline pretreatment with 0.10 Na0H/TS at 70 degrees C for 2 h significantly improved the digestion performance. With the thermal-alkaline pretreatment, the volumetric reactor productivity and specific methane yield of the pretreated streptomycin bacterial residue increased by 22.08-27.08% compared with those of the unpretreated streptomycin bacterial residue at an OLR of 2.33 gVS L-1 d(-1). The volatile solid removal was 64.09%, with less accumulation of TAN and total volatile fatty acid. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：436 / 440

页数：5

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