Organic biogas slurry nutrient solution with stable property and production method thereof
A technology for stabilizing performance and nutrient solution, which is applied in the production of biogas slurry organic nutrient solution, and in the field of biogas slurry organic nutrient solution, can solve problems such as the influence of biogas slurry stability, and achieve photosynthesis promotion, convenient process operation, and simple equipment Effect
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Embodiment 1
[0027] A liquid with a solid content of less than 1% is obtained by anaerobic fermentation of cow dung as raw material to produce biogas, and is used for standby; low-rank coal is selected from Inner Mongolia lignite,
[0028] Bacillus strains were inoculated into the seed tank Fu for 12 hours according to the conventional method, and then inoculated into the fermentation tank for 24 hours to obtain the bacterial liquid obtained after fermentation, and the bacterial concentration was 1×10 8 cfu / mL, spare,
[0029] Mix 85kg of the above-prepared biogas slurry and 10kg of 60-mesh Inner Mongolian lignite into the fermentation tank, and at the same time add 7kg of the above-prepared Bacillus culture solution and mix them for 20 days at a temperature of 25-28°C to obtain a stable performance Biogas slurry organic nutrient solution, the pH of this product is stable at 7.5-7.8 for more than 2 months, the total N reaches 2800mg / kg, and the soluble P reaches 138.6mg / kg.
Embodiment 2
[0031] A liquid with a solid content of less than 1% is obtained by anaerobic fermentation of pig manure to produce biogas, and is used for standby; the low-rank coal is selected from Xinjiang weathered coal,
[0032] Bacillus strains were inoculated into seed tanks and cultivated for 18 hours according to conventional methods, and then inoculated into fermentors to ferment for 18 hours. 8 The bacillus culture solution of cfu / mL, standby,
[0033] Mix 80kg of the biogas slurry prepared above and 18kg of 80-mesh Xinjiang weathered coal into the fermentation tank, and at the same time, insert 8kg of the bacillus culture solution prepared above into the fermentation tank at a temperature of 25-28°C for 20 days to obtain Biogas slurry organic nutrient solution, the pH of the product is 8.7-8.9, the total N reaches 3100mg / kg, and the soluble P reaches 154mg / kg.
Embodiment 3
[0035] A liquid with a solid content of less than 1% is obtained by anaerobic fermentation of mixed manure from cow dung and pig manure to produce biogas, and it is used for standby; coal gangue is used for low-rank coal.
[0036] Bacillus strains were inoculated into seed tanks and cultivated for 24 hours according to conventional methods, and then inoculated into fermentors to ferment for 12 hours to obtain the bacterial liquid with a concentration of 1.2×10 8 The bacillus culture solution of cfu / mL, standby,
[0037] Mix 75kg of the above-mentioned biogas slurry, 20kg of 80-mesh coal gangue, and 5kg of 2mm straw into the fermentation tank, and at the same time, add 10kg of the bacillus liquid prepared above and mix well, and ferment at 25-28°C for 20 days to obtain a stable Properties of Biogas Slurry Organic Nutrient Solution.
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