Process for treating solid waste compost in hoggery

Abstract

The invention discloses a process for treating solid waste compost in a hoggery. On the basis of the traditional compost treatment process and by comprehensively considering the influence of the content of water, pH value, C / N value and other factors on the quality of fertilizer, the invention provides a specific compost operation parameter. After the pig manure is subjected to the compost treatment by using the process of the invention, the fertility of the manure is proper; and the manure is better absorbed by the soil in the same area, thereby relieving the pressure that the manure is absorbed by a large area of land under the condition that the yield of pig manure is higher. The invention has the advantages of simple process, easy realization, high compost efficiency, high agricultureutilization value of the manure and low harm on the soil after being utilized to the farmland.

Description

technical field [0001] The invention relates to waste harmless treatment, in particular to a process for composting solid waste in pig farms. Background technique [0002] In recent years, my country's animal husbandry has developed rapidly, with pigs and herbivorous livestock being the most prominent, and intensive breeding and community healthy breeding are the main models of development. The breeding industry is developing in the direction of specialization, scale and intensification . [0003] The continuous expansion of the scale and quantity of intensive farming and the concentrated discharge of feces and sewage produced by farming production have caused serious environmental pollution, mainly in the following four aspects: 1. Water source pollution. The test results of feces show that the COD in the feces of most farms exceeds the national standard by 50-70 times, the BOD exceeds the national standard by 70-80 times, the SS exceeds the national standard by 12-20 times...

AI Technical Summary

Problems solved by technology

The discharge of high-concentration livestock and poultry organic sewage into rivers and lakes is the direct cause of water eutrophication, leading to the gradual death of aquatic organisms sensitive to organic pollution and the continuous deterioration of water quality; at the same time, the toxic and harmful components of livestock and poultry feces pollutants are also It is easy to infiltrate into groundwater, reduce the content of dissolved gas in groundwater, increase the toxic components in water quality, and in severe cases, make the water black, smelly, and lose its use value. It is difficult to treat sewage and the pollution lasts for a long time; 2. Air pollution, farms The malodorous gas produced contains a large amount of toxic and harmful components such as ammonia, sulfide, methane, etc., which pollutes the surrounding air, seriously affects the air quality, endangers the health of the breeders and surrounding residents, and also affects the normal growth of livestock and poultry; 3. Soil Pollution, livestock and poultry manure and sewage are good organic fertilizers, but in the process of application, the amount of its use must be controlled, and it must not exceed the self-digestion of the land, the absorption and transformation of plants, and the self-purification capacity of the soil. Or the absorption and transformation ability of plants will cause the phenomenon of enrichment and fertilizer, which will become harmful, and even cause soil pore blockage, soil air permeability, water permeability decrease and compaction, which will seriously affect the soil quality; 4. Living and production environment pollution, without harmless treatment The treated livestock and poultry manure and sewage contain a large number of pathogenic microorganisms, parasite eggs, and breeding mosquitoes and flies, which will increase the types of pathogens in the environment, increase the bacteria content, and cause a large number of pathogenic bacteria and parasites to multiply, causing human , the spread of animal infectious diseases; especially when zoonotic diseases occur, epidemics will occur, which will bring catastrophic harm to humans and animals

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