Feasibility of anaerobic co-digestion of poultry blood with maize residues

被引：35
作者：
Cuetos, M. J. [1 ]
Gomez, X. [1 ]
Martinez, E. J. [1 ]
Fierro, J. [1 ]
Otero, M. [2 ,3 ]
机构：
[1] Univ Leon, Nat Resources Inst IRENA, Chem & Environm Bioproc Engn Dept, Leon 24009, Spain
[2] Univ Aveiro, Dept Chem, Ctr Environm & Marine Studies CESAM, P-3810193 Aveiro, Portugal
[3] Univ Leon, Dept Appl Chem & Phys, Leon 24071, Spain
来源：
BIORESOURCE TECHNOLOGY | 2013年 / 144卷
关键词：
Co-digestion; Residual poultry blood; Maize residues; FTIR; Kinetic analysis; BIOGAS PRODUCTION; ENERGY CROPS; METHANE PRODUCTION; BATCH DEGRADATION; SWINE MANURE; WASTE; PREDICTION; FTIR;
D O I：
10.1016/j.biortech.2013.06.129
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The potential of anaerobic digestion for the treatment of poultry blood was evaluated in batch assays at laboratory scale and in a mesophilic semi-continuously fed digester. The biodegradability test performed on poultry blood waste showed a strong inhibition. Maize residues were used as co-substrate to overcome inhibition thanks to nitrogen dilution. Under batch operation, increasing the maize concentration from 15% to 70% (volatile solids (VS) basis) provided an increase of biogas from 130 +/- 31 to 188 +/- 21 L CH4/kg VS. In the semi-continuous mesophilic anaerobic digester, the biogas yield was 165 +/- 17 L CH4/kg VS fed, as a result of strong volatile fatty acid (VFA) accumulation. Although physical modifications of maize particles were observed by Scanning Electron Microscopy (SEM), an incomplete degradation was confirmed from analysis of digestates. Furthermore, Fourier Transform Infrared (FTIR) spectroscopy analysis demonstrated that along with VFA build-up, an accumulation of non-degraded materials took place. (c) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：513 / 520
页数：8
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