Upflow anaerobic solid-state (UASS) digestion of horse manure: Thermophilic vs. mesophilic performance

被引：27

作者：

Boeske, Janina ^{[1
]}

Wirth, Benjamin ^{[2
]}

Garlipp, Felix ^{[1
]}

Mumme, Jan ^{[2
]}

Van den Weghe, Herman ^{[1
]}

机构：

[1] Univ Gottingen, Div Proc Engn, Dept Anim Sci, Fac Agr Sci, D-49377 Vechta, Germany

[2] Leibniz Inst Agr Engn Potsdam Bornim, D-14469 Potsdam, Germany

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 175卷

关键词：

Horse manure; Bedding materials; Solid-state anaerobic digestion; Thermophilic; UASS; WHEAT-STRAW; BIOGAS PRODUCTION; WASTE-WATER; DUNG;

D O I：

10.1016/j.biortech.2014.10.041

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Energetic use of complex lignocellulosic wastes has gained global interest. Thermophilic digestion of horse manure based on straw was investigated using the upflow anaerobic solid-state (UASS) process. Increasing the organic loading rate from 2.5 to 5.5 g(vs) L-1 d(-1) enhanced the average methane production rate from 0.387 to 0.687 L-CH4 L-1 d(-1), whereas the yield decreased from 154.8 to 124.8 L-CH4 kg(vs)(-1). A single-stage and two-stage process design showed almost the same performance. Compared to prior experiments at mesophilic conditions, thermophilic conditions showed a significantly higher efficiency with an increase of 59.8% in methane yield and 58.1% in methane production rate. Additional biochemical methane potential (BMP) tests with two types of horse manure and four different bedding materials showed that wheat straw obtained the highest BMP. The results show that the thermophilic UASS process can be the key to an efficient energy recovery from straw-based manures. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：8 / 16

页数：9

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