High-concentration multi-raw-material mixed anaerobic fermentation method
An anaerobic fermentation, high-concentration technology, applied in fermentation, biosynthesis, waste fuel, etc., can solve problems such as difficulty in practical engineering applications, and achieve the effect of facilitating popularization and utilization, reducing production costs, and increasing yield
Inactive Publication Date: 2019-04-26
江西省农业科学院农业应用微生物研究所
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Problems solved by technology
For a long time, people have been committed to improving the average biogas production and reaction volume gas production rate. At the same time, they are also exploring whether there are alternative raw materials for anaerobic fermentation of organic substances. Through continuous exploration of technical approaches to solve the above problems, there are Some use physical methods, some use chemical methods, and some use biological methods, but due to economic constraints, the above methods are difficult to put into practical engineering applications
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Embodiment 1
[0035] A high-concentration multi-raw material mixed anaerobic fermentation method comprises the following steps in sequence:
[0036] ① After removing impurities from the breeding manure, enter the homogenization tank, use biogas slurry backflow to inoculate and adjust the fermentation concentration, and the final TS concentration in the homogenization tank is controlled at about 6-8%;
[0037] ②After the sugarcane leaves are crushed, they are treated with biogas slurry reflux and aeration in the hydrolysis tank, and then enter the fermenter for anaerobic fermentation;
[0038] ③ After the sugarcane leaves are crushed, they enter the hydrolysis tank, and the biogas slurry is refluxed to adjust the material concentration for aeration treatment, and the TS concentration is controlled at about 10%;
[0039] ④Pig manure and sugarcane leaves are mixed in the feeding tank and then enter the fermenter for anaerobic fermentation.
[0040] In step ②, the crushed sugarcane leaves have...
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The invention discloses a high-concentration multi-raw-material mixed anaerobic fermentation method which belongs to the field of renewable energy source development and utilization. The high-concentration multi-raw-material mixed anaerobic fermentation method sequentially comprises the following steps: removing impurities of breeding dung, introducing the breeding dung into a slurry homogenizingtank, adopting biogas slurry for reflow inoculation, regulating fermentation concentration, and controlling final TS concentration of the slurry homogenizing tank to be about 6-8%; crushing sugarcanetops, adopting biogas slurry for reflow aeration treatment in a hydrolysis tank, and entering the fermentation tank to perform anaerobic fermentation; uniformly mixing pig manure with the sugarcane tops in a feeding tank, and entering the fermentation tank to perform anaerobic fermentation. The sugarcane tops are added into the pig manure as a main substance basis for producing methane, so that the methane daily yield is higher; and feed load is increased, so that the methane daily yield is increased along with increase of the charge load, and therefore, the state of a fermentation system is stable.
Description
technical field [0001] The invention belongs to the field of renewable energy development and utilization, in particular to a method for mixed anaerobic fermentation of various raw materials. Background technique [0002] With the increasing emphasis on sustainable development and the protection of the earth's environment, the development and utilization of biomass resources has attracted widespread attention, and its anaerobic fermentation to generate biogas has attracted more and more attention. Biogas is a mixed gas produced by the fermentation of microorganisms under anaerobic conditions. In terms of solid waste treatment, anaerobic biological treatment technology mainly treats easily biodegradable raw materials with high moisture content, such as sewage sludge. , feces, etc. As the largest by-product in agricultural production, rice straw is also the main target of anaerobic biological treatment technology. For a long time, people have been committed to improving the ...
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Login to View More IPC IPC(8): C12P5/02
CPCC12P5/023Y02E50/30Y02P20/59
Inventor 陈柳萌桂伦陈庆隆张诚聂红马吉平吁安姚健
Owner 江西省农业科学院农业应用微生物研究所