期刊
FUEL
卷 329, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2022.125397
关键词
Anaerobic digestion; Lignocellulosic biomass; Methanogens; Co -digestion; Methane; Techno-economic analysis
资金
- National Key R & D Program of China [2018YFE0107100]
- National Natural Science Foundation of China [31772529]
- Ministry of Higher Education & Scientific Research (MHESR) , Support of Excellent Students Projects (SESP) , Egypt [SP2-008-TAN, TURSP-2020/95]
- Taif University, Taif, Saudi Arabia [2018YFE0107100]
- [SP1-078-TAN]
This study is the first to explore the techno-economic implications of anaerobic co-digestion of water hyacinth and cattle dung, optimizing their mixing ratios to enhance methane production. The co-digestion technique significantly increased biogas and methane production, improved microbial population analysis, and demonstrated promising techno-economic benefits.
This study might be the first to explore the techno-economic implications of anaerobic co-digestion of water hyacinth (WH) and cattle dung (CD) to optimize their mixing ratios for enhancing methane (CH4) production. At a mixing ratio of 1:1, the maximum biogas and CH4 content was obtained. The co-digestion technique increased biogas and CH4 production by 111.3 and 173.6 %, respectively, over CD. On the 13th day, the maximum daily CH4 content was 67.11 %. During 60 days of anaerobic digestion (AD), the pH and volatile fatty acids (VFAs) concentrations fluctuated in an inverse proportion. Before and after the AD, there was a significant decrease in carbon/nitrogen (C/N). The vermicon identification technology (VIT (R)) gene probe indicated that co-digestion improved microbial population analyses, particularly for CH4-producing (Euryarchaeota) and acid-producing bacteria. According to the techno-economic evaluation, the maximum net energy content of biogas was 619.2 kWh/m(3) with a net profit of 110.4 USD/m(3) of substrate.
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