Influence of temperature and hydraulic retention on the production of volatile fatty acids during anaerobic fermentation of cow manure and maize silage

被引：87

作者：

Cavinato, Cristina ^{[1
]}

Da Ros, Cinzia ^{[1
]}

Pavan, Paolo ^{[1
]}

Bolzonella, David ^{[2
]}

机构：

[1] Univ Ca Foscari Venice, Dept Environm Sci Informat & Stat, Via Torino 155, I-30172 Venice, Italy

[2] Univ Verona, Dept Biotechnol, Str Grazie 15, I-37134 Verona, Italy

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 223卷

关键词：

Fermentation; Anaerobic digestion; Maize silage; Cow manure; Volatile fatty acid; METHANE PRODUCTION; DIGESTION; PRETREATMENT; KINETICS; BIOMASS; DEGRADATION; CROPS; YIELD; VFA; PH;

D O I：

10.1016/j.biortech.2016.10.041

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

The aim of this study was to verify the efficiency of a separate hydrolysis step by testing different working temperatures (37-55 degrees C) and hydraulic retention times (two, four and six days) and by evaluating readily biodegradable carbon production. The fermentation products included primarily acetic, propionic and butyric acids. These acids can be easily converted into biogas or can be recovered in a biorefinery approach, for example, to produce polyhydroxyalkanoates. The optimal condition was found by applying an organic loading rate of 17.9 gTVS m(-3) with a four-day retention time at 37 degrees C for an acidification yield of 183.2 gCOD(VFA) kgVS(fed)(1). (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：59 / 64

页数：6

共 27 条

[1] DEGRADATION OF VOLATILE FATTY-ACIDS BY DIFFERENTLY ENRICHED METHANOGENIC CULTURES - KINETICS AND INHIBITION [J].