Enhancement of high solid anaerobic co-digestion of swine manure with rice straw pretreated by microwave and alkaline

被引：2

作者：

Qian X. ^{[1
]}

Shen G. ^{[1
]}

Wang Z. ^{[1
]}

Zhang X. ^{[1
]}

Chen X. ^{[1
]}

Tang Z. ^{[1
]}

Lei Z. ^{[2
]}

Zhang Z. ^{[2
]}

机构：

[1] Shanghai Academy of Environmental Sciences, Shanghai

[2] Graduate School of Life and Environmental Sciences, University of Tsukuba, Tsukuba, 305-8572, Ibaraki

来源：

Bioresource Technology Reports | 2019年 / 7卷

关键词：

Alkaline; Anaerobic digestion; Biogas production; High solid; Microwave; Pretreatment; Rice straw; Swine manure;

D O I：

10.1016/j.biteb.2019.100208

中图分类号：

学科分类号：

摘要：

This study was to evaluate the effect of pretreated rice straw on high solid anaerobic co-digestion with swine manure, focusing on biogas production and kinetics. The rice straw pretreated by microwave, alkaline and alkaline-microwave was co-digested with swine manure under high solid state, and the effect was evaluated in bath reactors. The results indicated that, high solid anaerobic co-digestion of swine manure with rice straw pretreated by alkaline and alkaline-microwave could increase biogas yields by around 25%, with biogas productivities improved by 2.85–5.88% for per unit of total solid (TS). The biogas yields and productivities with rice straw pretreated by alkaline and alkaline-microwave could reach 355–357 L kg−1 TS-loaded and 679–699 L kg−1 TS-reduced, and their co-digestion process fitted the two-stage first order model accurately, discerned from the smaller average relative differences of 5.74% and 6.09% in contrast to 11.56% and 13.81% by using the single-stage first order model. © 2019

引用

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