High concentration multi-feedstock mixed anaerobic fermentation method
An anaerobic fermentation, high-concentration technology, applied in fermentation, biosynthesis, waste fuel, etc., can solve the problems of limiting anaerobic fermentation feed concentration and gas production efficiency, and achieve high solvent gas production rate, stable fermentation state, The effect of increasing yield
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[0041] Example 1.
[0042] The high-concentration multi-material mixed anaerobic fermentation method includes the following steps:
[0043] ①After the pig manure is precipitated and de-sanded in the homogenization tank, the solid content concentration (TS) of the feed is adjusted to 6-8%, and it is preheated into the fermentation tank for anaerobic fermentation;
[0044] ②After the rice straw is pretreated in the hydrolysis tank, adjust the feed solid content (TS) 11-13% and enter the fermenter for anaerobic fermentation;
[0045] ③Sick and dead pigs are treated with high temperature digestion for harmless treatment, and their output enters the homogenization tank, preheated into the fermentation tank for anaerobic fermentation.
[0046] Steps ①, ②, ③ VS pig manure: VS rice straw = 4:1-1:1 in the middle fermentation tank, and the solids concentration (TS) of the mixture is about 10%.
[0047] In step ③, the feed rate of the sick and dead pigs is 1% of the total feed rate.
[0048] In step...
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