Daily fresh pig manure 80 T (moisture content 82%), 80% of fresh pig manure produced by pig farm and sewage are used as raw materials to produce biogas through large-scale biogas generator projects. Biogas is a high-quality biomass energy. Through the construction of cogeneration of thermal power and fertilizer, biogas power generation project can produce significant economic benefits, and can achieve the efficient utilization of agricultural waste resources, develop renewable energy, improve the quality of agricultural products, improve the rural ecological environment, promote the development of agricultural industrialization and increase the employment opportunities of rural surplus labor force, Promote agricultural efficiency, increase farmers’ income and sustainable development of rural economy.
The reduction, recycling and harmless treatment of pig farm waste has broad development prospects and positive social, ecological and economic benefits. After the completion of biogas power generation project, it has the following benefits:
(1) Pig manure produces 5040 biogas per day through anaerobic fermentation M3 / D, generating capacity 8000 KWh / D, online sales, electricity price is calculated at 0.625 yuan / kWh (including 0.25 yuan / kWh of renewable energy power generation online subsidy), and an annual income of 1.82 million yuan can be obtained;
(2) The heat energy generated by cogeneration biogas generator can be used to increase the temperature of anaerobic tank in winter to realize medium temperature fermentation in anaerobic tank and obtain the best fermentation effect;
(3) After anaerobic fermentation, pig manure can produce biogas residue and biogas slurry every year, which can be used as high-efficiency organic fertilizer. This not only reduces the production cost of producing organic fertilizer directly from pig manure, but also this high-efficiency fertilizer is a high-efficiency organic fertilizer with the function of insect and disease prevention. It can not only increase the yield of crops, but also obtain environmental friendly pollution-free agricultural products and improve the quality of agricultural products.
Post time: Dec-07-2021