Biogas from grass silage - Measurements and modeling with ADM1

被引：141

作者：

Koch, Konrad ^{[1
]}

Luebken, Manfred ^{[2
]}

Gehring, Tito ^{[2
]}

Wichern, Marc ^{[2
]}

Horn, Harald ^{[1
]}

机构：

[1] Tech Univ Munich, Inst Water Qual Control, D-85748 Garching, Germany

[2] Ruhr Univ Bochum, Inst Environm Engn, D-44780 Bochum, Germany

来源：

BIORESOURCE TECHNOLOGY | 2010年 / 101卷 / 21期

关键词：

Grass silage; Mesophilic anaerobic digestion; Biogas technology; Mathematical modeling; ADM1; THERMOPHILIC ANAEROBIC-DIGESTION; CATTLE MANURE; AMMONIA INHIBITION; METHANE PRODUCTION; WASTE-WATER; FERMENTATION; NITROGEN;

D O I：

10.1016/j.biortech.2010.06.009

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Mono fermentation of grass silage without the addition of manure was performed over a period of 345 days under mesophilic conditions (38 degrees C). A simulation study based on the IWA Anaerobic Digestion Model No. 1 (ADM1) was done in order to show its applicability to lignocellulosic biomass. Therefore, the influent was fractioned by established fodder analysis (Weender analysis and van Soest method). ADM1 was modified with a separate compound of inert decay products similar to the approach of Activated Sludge Model No. 1 (ASM1). Furthermore, a function, which described the influence of solids on the process of hydrolysis, has been integrated to reproduce reliable ammonium concentrations. The model was calibrated by using the modified Nash-Sutcliffe coefficient to evaluate simulation quality. It was possible to fit observed data by changing only hydrogen inhibition constants and the maximum acetate uptake rate. The extended ADM1 model showed good agreement with measurements and was suitable for modeling anaerobic digestion of grass silage. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：8158 / 8165

页数：8

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