Biomethanization of sugar beet byproduct by semi-continuous single digestion and co-digestion with cow manure

被引：28

作者：

Aboudi, Kaoutar ^{[1
]}

Jose Alvarez-Gallego, Carlos ^{[1
]}

Isidoro Romero-Garcia, Luis ^{[1
]}

机构：

[1] Univ Cadiz, Fac Sci, Dept Chem Engn & Food Technol, Agrifood Campus Int Excellence CeiA3, Cadiz 11510, Spain

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 200卷

关键词：

Semi-continuous anaerobic digestion; Sugar beet byproduct; Cow manure; Co-digestion; Biogas production; STATE ANAEROBIC-DIGESTION; ORGANIC LOADING RATE; METHANE PRODUCTION; ENERGY CROPS; BIOGAS; OPTIMIZATION; RATIOS; DAIRY;

D O I：

10.1016/j.biortech.2015.10.051

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Dried pellet of exhausted sugar beet cossettes were digested alone and combined with cow manure as cosubstrate in a mesophilic semi-continuous anaerobic system. In single digestion assay, the stable biogas production and stable reactor operation was observed at the hydraulic retention time (HRT) of 20 days (OLR: 3.26 g VS/L-reactor d) which was the minimum HRT tolerated by the system. However, co-digestion with cow manure allowed to decrease the HRT until 15 days (OLR: 4.97 g VS/L-reactor d) with 32% higher biogas generation and efficient reactor operation. Propionic acid was the predominant VFA observed during single digestion assay failure, while acetic acid accumulation was observed in the co-digestion assay. In both single and co-digestion assays, the recovery of digesters was possible by ceasing the feeding and re-inoculation with a well-adapted inoculum. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：311 / 319

页数：9

共 34 条

[21] PROPIONIC TO ACETIC-ACID RATIOS IN OVERLOADED ANAEROBIC-DIGESTION [J].