Kitchen wastes (KW) dramatically increasing with population and economy enhancing, and dry anaerobic fermentation was used to treat it. However, the large amount of biogas residue severely restricted the application of dry anaerobic fermentation, because the high total solid might lead to the system failure. Therefore, it is urgent to find appropriate way
2 天之前 · Azotobacter chroococcum and Bacillus subtilis were selected as fermentation strains, and biogas residue after anaerobic digestion of kitchen waste and residual sludge was used as fermentation substrate. A single factor optimization test was used to optimize the solid-state fermentation parameters of biogas residue with the number of viable
2012/9/1/ · 1. Introduction. Energy crisis and global warming are considered to be two most serious problems worldwide [1].Biomass energy, as a renewable and sustainable form of energy, is becoming more important due to its environmentally-sound and energy-saving production [2].Development of a livestock industry is believed to be a key
2015/2/21/ · The application of biogas residues to the soil increases microbial activity and increases microbial biomass (Chen et al., 2012). Biogas residue digestate application may affect soil phosphorus
2023/9/5/ · Increased biogas residue related to the rapid development of anaerobic fermentation has become an urgent environmental problem. The pyrolysis of biogas residue into biochar is one of the most promising treatments. In this study, biochar derived from biogas residue was prepared, and the degradation efficiency of phenol by
2021/3/23/ · The demand of energy increases because of urbanization and industrialization. An alternate source of producing energy is required to come across the demand as well as reduce the necessity of the fossil fuels (York 2012).Biogas, a combination of carbon dioxide and methane in the molar ratio of 1:2, is a gaseous fuel
Key Takeaways . Sustainable Energy Production: Biogas generators are innovative systems that convert organic waste into biogas, a clean and renewable energy source. This process not only offers an eco-friendly alternative to fossil fuels but also plays a crucial role in waste management, reducing landfill use and methane emissions.
2019/10/29/ · Except for U5, the biogas production rate of each experimental group changed significantly during the 50-day fermentation process, and the biogas production peak was obvious. The biogas production period was concentrated mainly during the 8th to 25th days. The peak of U5 biogas production was concentrated mainly during the 17th to
Nitrous oxide production from soils amended with biogas residues and cattle slurry. It is shown that fertilization with BR can increase NO emissions and that the size is dependent on the total N and organic C content of the slurry and on soil type, and matching fertilizer type to soil type could reduce NO emissions.
This study used biogas residue produced by anaerobic fermentation of food waste as the raw material in large-scale windrow composting. The effects of the addition of a microbial consortium on the physical and chemical properties and stability of composting of biogas residue were studied. The maturit
2024/5/28/ · Based on the data of Table 3, the financial net present value (NPV) of dark and photo-fermentation system is 584,400 CNY (79,843$/kg), the investment payback periods are estimated to be 6.86 years
2018/10/1/ · By determining the methane production, volatile fatty acids (VFA) and ammonia nitrogen content of deer manure anaerobic fermentation system we explored the effects of adding biogas slurry on
Our RSD biogas plant provides established technology for high solids anaerobic digestion, offering a viable solution for utilizing organic waste and residual materials rich in solid
2017/3/25/ · The biogas residue raw material was mixed with wheat bran. The dry matter content was increased to 50%, and distiller’s yeast was added to a final content of 10% based on weight. The biogas residue was aerobic fermented 48
2016/2/16/ · In one full-scale two-phase system 70–97 % COD removal and biogas production of 3–13 kg/m 2 day with a methane content of 65–80 % was obtained when operated at COD loads of 20–60 kg/m 3 /day for acidogenic fermentation (1st phase) and 6–30 kg/m 3 /day for methanogenic fermentation (2nd phase). In another example, a two …