Livestock manure harmless treatment and agricultural and pastoral recycling resource utilization method
By combining solid manure after solid-liquid separation with straw in multi-stage aerobic composting and liquid anaerobic fermentation, and utilizing the recycling of biogas residue and biogas slurry, the problems of low resource conversion efficiency and nitrogen loss in livestock and poultry manure treatment are solved, realizing a closed loop of agricultural and livestock cycle and system energy self-sufficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Filing Date
- 2026-06-01
- Publication Date
- 2026-07-17
AI Technical Summary
In the treatment of livestock and poultry manure, solid aerobic composting and liquid anaerobic fermentation operate independently, lacking material cross-linking and process coupling. This results in a single nutrient conversion pathway, uneven product quality, low resource conversion efficiency, and problems such as ammonia gas leakage and inaccurate application of biogas slurry, making it difficult to achieve a complete material cycle.
After solid-liquid separation, solid manure is mixed with straw for multi-stage aerobic composting and fermentation, liquid wastewater undergoes anaerobic fermentation, biogas residue is returned to the aerobic composting and maturation stage, biogas slurry is applied according to soil nutrient status, and straw returned to the field is recycled as an auxiliary material. Combined with nano-membrane covering and biochar treatment, material complementarity and microbial synergy are achieved, and nitrogen loss is controlled.
It has diversified nutrient conversion pathways, improved resource conversion efficiency, shortened the treatment cycle, reduced ammonia emissions, ensured the precise application of biogas slurry, formed a closed loop of agricultural and livestock cycle, achieved system energy self-sufficiency, and reduced environmental risks.
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