Marsh gas reactor with crusting resistance device
A reactor and crusting technology, applied in the field of biogas reactors, can solve the problems of easy damage to the air tightness of biogas reactors, damage to the continuous use of biogas, and reduced service life of fermentation tanks, and achieve obvious anti-crust performance and structure Simple, prolonged exposure effects
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Embodiment 1
[0022] 2000g of potato peels were used as the fermentation substrate, pretreated by stacking and retting for 7 days, and 2000ml of wild sewage sludge strains were collected respectively. The 30-day fermentation test was carried out in a container, and the TS concentration of the fermentation raw material was 3%. During the fermentation period, the gas production rate of the biogas reactor with anti-crust device is 0.248m 3 / (m 3 ·d), the raw material gas production rate is 223m 3 / (kg·TS), the wet weight of the suspended solids content is 6g, and the dry weight is 0.58g; the gas production rate of the biogas reactor without anti-crust device is 0.211m 3 / (m 3 ·d), raw material gas production rate 190m 3 / (kg·TS), the wet weight of suspended solids is 181g, and the dry weight is 19.5g. The comparison found that the gas production of the biogas reactor with anti-crust device increased by 17.5%; compared with the methane content, the biogas reactor with anti-crust device was...
Embodiment 2
[0024] Take 2000ml of fermented biogas slurry as an inoculum, 2000g of potato peels are pretreated for 7 days by composting and retting, and as a fermentation substrate, they are fermented in a reactor with an anti-crust device at a normal temperature of 27°C for 30 days, and the TS concentration of the fermentation raw material is 6 %, the gas production rate of biogas reactor with anti-crust device is 0.882m 3 / (m 3 d), while the conventional fermentation tank is 0.3m 3 / (m 3 · d), it can be seen that the pool capacity of the biogas reactor with the anti-crust device is increased by nearly 194%, and the utilization rate of raw materials is obviously improved. And there is almost no suspended solids on the liquid surface. The biogas slurry COD removal rate is as high as 71.7%, and the raw material gas production rate is 600m 3 / (kg·TS), and the concentration of methane in the produced gas exceeds 70%, and the quality of the produced gas is high.
Embodiment 3
[0026] Take 2000ml of fermented biogas slurry as the inoculum, respectively use 2000g of potato peels as the fermentation raw material, stack retting pretreatment for 7 days, and add the anti-crust device and no anti-crust device respectively at room temperature of 27°C. Biogas reactor, fermentation raw material TS concentration is 6%, fermented for 30 days, the gas production of the biogas reactor with anti-crust device is 180-200ml, and the gas production of biogas reactor without anti-crust device is 150-170ml. Compared with the two, with anti-crust The gas production of the biogas reactor of the crust device increased by 19.9%.
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