Method for improving characteristics of marsh gas produced through anaerobic fermentation of chicken manure
A technology of anaerobic fermentation and biogas production, which is applied in the direction of biological sludge treatment, etc., can solve problems such as the easy collapse of the anaerobic fermentation system of chicken manure, and achieve the effects of alleviating ammonia inhibition, improving stability, and promoting gas production
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Embodiment 1
[0030] This embodiment provides a method for improving the biogas characteristics of anaerobic fermentation of chicken manure, and the specific implementation steps are as follows:
[0031] (1) Sieve the chicken manure to remove impurities with a particle size greater than 1cm;
[0032] (2) Measure the VS (volatile solid) of the chicken manure raw material obtained in step (1), obtain the chicken manure VS as 13.44%, set the VS ratio of chicken manure and inoculation in the fermentation bottle to be 1:2, and work volume 400mL;
[0033] The zeolite is sieved, and the particle size is controlled at 1-1.5 mm. The zeolite was rinsed three times with deionized water, and placed in an oven at 105° C. for 24 hours after rinsing.
[0034] The inoculum in this example is activated sludge, which is taken from the fermentation residue of a biogas system normally fermented with pig manure as the fermentation raw material in Gangyan Town, Chongming Island, Shanghai, and its total solid co...
Embodiment 2
[0041] This embodiment provides a method for improving the biogas characteristics of anaerobic fermentation of chicken manure, and the specific implementation steps are as follows:
[0042] (1) Sieve the chicken manure to remove impurities with a particle size greater than 1cm;
[0043] (2) Measure the VS (volatile solid) of the chicken manure raw material obtained in step (1), obtain the chicken manure VS as 13.44%, set the VS ratio of chicken manure and inoculation in the fermentation bottle to be 1:2, and work volume 400mL;
[0044] Sieve the zeolite, the particle size of the zeolite is controlled at 1-1.5mm, and the specific surface area is greater than 13.71m 2 g -1, the hardness is between 3 and 4, and the main component is Na(AlSi 5 o 12 )·4H 2 O. The zeolite was rinsed three times with deionized water, and placed in an oven at 110° C. for 22 hours after rinsing.
[0045] The inoculum in this example is activated sludge, which is taken from the fermentation residu...
Embodiment 3
[0050] This embodiment provides a method for improving the biogas characteristics of anaerobic fermentation of chicken manure, and the specific implementation steps are as follows:
[0051] (1) Sieve the chicken manure to remove impurities with a particle size greater than 1cm;
[0052] (2) Measure the VS (volatile solid) of the chicken manure raw material obtained in step (1), obtain the chicken manure VS as 13.44%, set the VS ratio of chicken manure and inoculation in the fermentation bottle to be 1:2, and work volume 400mL;
[0053] Sieve the zeolite, the particle size of the zeolite is controlled at 1-1.5mm, and the specific surface area is greater than 13.71m 2 g -1 , the hardness is between 3 and 4, and the main component is Na(AlSi 5 o 12 )·4H 2 O. The zeolite was rinsed three times with deionized water, and placed in an oven at 100° C. for 20 hours after rinsing.
[0054] The inoculum in this example is activated sludge, which is taken from the fermentation resid...
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