Advantages of biogas fermentation fertilizer

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Biogas fermentation is a fermentation process in which organic matter is broken down in the absence of air, under specific temperature and humidity conditions, with the involvement of various anaerobic organic nutrient-busting bacteria. Biogas fermentation has three major advantages: (1) The biogas produced through fermentation can be used as fuel to address some energy needs in rural areas. ⑵Improve environmental hygiene in cities and rural areas. ⑶The wastewater and biogas residue after fermentation can be used as fertilizer. Biogas slurry has a higher nutrient content than composted manure, exhibits stronger capabilities in retaining nutrients and water, and has a significant effect on improving soil quality. Biogas fermentation fertilizer can be used as a base fertilizer or top dressing, as well as for seed soaking. The fermented liquid is generally used as a top dressing, while the fermented biogas residue is used as a base fertilizer; a mixture of the residue and the liquid can also be used as a base fertilizer or as a top dressing.