Solid state anaerobic co-digestion of yard waste and food waste for biogas production

被引：276

作者：

Brown, Dan ^{[1
]}

Li, Yebo ^{[1
]}

机构：

[1] Ohio State Univ, Ohio Agr Res & Dev Ctr, Dept Food Agr & Biol Engn, Wooster, OH 44691 USA

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 127卷

关键词：

Solid-state anaerobic digestion; Biogas; Municipal solid waste; Food waste; Co-digestion; ORGANIC FRACTION; REACTION-MECHANISMS; NITROGEN RATIO; METHANE; FERMENTATION; RESIDUES; SLUDGE; CARBON; STOVER;

D O I：

10.1016/j.biortech.2012.09.081

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Food and yard wastes are available year round at low cost and have the potential to complement each other for SS-AD. The goal of this study was to determine optimal feedstock/effluent (F/E) and food waste/yard waste mixing ratios for optimal biogas production. Co-digestion of yard and food waste was carried out at F/E ratios of 1, 2, and 3. For each F/E ratio, food waste percentages of 0%, 10%, and 20%, based on dry volatile solids, were evaluated. Results showed increased methane yields and volumetric productivities as the percentage of food waste was increased to 10% and 20% of the substrate at F/E ratios of 2 and 1, respectively. This study showed that co-digestion of food waste with yard waste at specific ratios can improve digester operating characteristics and end performance metrics over SS-AD of yard waste alone. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：275 / 280

页数：6

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