Biogas production by anaerobic co-digestion of cattle slurry and cheese whey

被引：96

作者：

Comino, Elena ^{[1
]}

Riggio, Vincenzo A. ^{[1
]}

Rosso, Maurizio ^{[2
]}

机构：

[1] Politecn Torino, Dipartimento Ingn Terr Ambiente & Geotecnol, I-10129 Turin, Italy

[2] Politecn Torino, Dipartimento Idraul Trasporti & Infrastrutture C, I-10129 Turin, Italy

来源：

BIORESOURCE TECHNOLOGY | 2012年 / 114卷

关键词：

Anaerobic digestion; Methane yield; COD reduction; Digestate yield test; Energy production; ORGANIC LOADING RATE; ENERGY CROPS; MANURE; WASTE; SLUDGE; BATCH;

D O I：

10.1016/j.biortech.2012.02.090

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Biogas yield of mixtures of cattle slurry and cheese whey, rates of production of methane, removal efficiencies of chemical oxygen demand (COD) and biological oxygen demand (BOD) were investigated at 35 C. Stable biogas production of 621 l/kg volatile solids at a hydraulic retention time of 42 days in a mixture containing 50% slurry and whey was obtained. The concentration of methane in the biogas was around 55%. Maximum removal efficiencies for COD and BOD5 were 82% and 90%, respectively. A maximum biogas production increase of 79% with respect to the start-up phase was achieved. The result of this study show that co-digestion of a high volume of whey (up to 65% in volume) is possible without the use of chemicals for pH correction, but also that this kind of mix has a similar energetic potential for anaerobic digestion as energy crops such as maize. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：46 / 53

页数：8

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