期刊
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
卷 123, 期 -, 页码 244-250出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ibiod.2017.07.005
关键词
Anaerobic co-digestion; Bioenergy recovery; Organic waste; Pilot-scale evaluation; Synergistic effects
资金
- Department of Agriculture, Fisheries and Forestry, Australian Government under the Research Stimulus Program [RSF 07 543]
- Science Foundation Ireland [12/IP/1519]
- Science Foundation Ireland (SFI) [12/IP/1519] Funding Source: Science Foundation Ireland (SFI)
This study aimed to assess the system stability and synergistic effects of co-digesting pig manure (PM) and grass silage (GS) in a pilot-scale study. Anaerobic digestion of PM alone and co-digestion of PM with GS was carried out in a 480-L continuously stirred tank reactor. The experiment consisted of two phases. In Phase I, PM was digested at an organic loading rate (OLR) of 0.87 kg volatile solid (VS) m(-3).d(-1), and in Phase II, PM and GS were co-digested at 1:1 on a VS basis at an OLR of 1.74 kg VS.m(-3).d(-1) The pilot-scale anaerobic digestion system was stable in both phases. At the steady state, average pH and free ammonia concentrations were 7.99 and 233.0 mg l(-1) in Phase I and were 7.77 and 158.3 mg l(-1) in Phase II, respectively. The specific methane yields increased from 154 ml CH4/g VS added in Phase Ito 251 ml CH4/g VS added in Phase II. On average, soluble chemical oxygen demand and VS removal efficiencies increased from 81.4% and 41.4% in Phase Ito 87.8% and 53.9% in Phase II, respectively. Further evaluation of synergism suggests that co-digestion of PM and GS can improve system stability and biogas yields despite marginal synergistic effects at pilot-scale. (C) 2017 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据