Method for producing soil conditioner raw material by using kitchen garbage and solid agriculture and forestry wastes

Abstract

The invention provides a method for producing a soil conditioner raw material by using kitchen garbage and solid agriculture and forestry wastes. The method comprises the following steps of (1) performing raw material treatment: respectively treating the kitchen garbage and the solid agriculture and forestry wastes; (2) performing subcritical hydropyrolysi-ozone oxidization digestion: feeding smashed raw materials into a reaction kettle, and feeding ozone for digesting the raw materials in a united manner under a high-temperature and high-pressure subcritical environment; (3) after the raw materials are digested, cooling and decompressing the reaction kettle, and performing solid-liquid phase separation on products; and (4) drying and smashing the separated solid phase products to obtain the soil conditioner raw material for later use, and feeding liquid phase products into a water storage basin for recycling. According to the method, an effect of improving the environment in both the urban and countries is achieved, energy is fully saved, repeated use of resources is realized, and harm caused by improper treatment on the garbage to human is avoided; the ecological benefit of a kitchen garbage recycling product is enhanced, the cost for treating the kitchen garbage is lowered, and the appeal of harmless, reducing and recycling garbage treatment of the government is responded.

Description

technical field [0001] The invention relates to a method for producing raw materials of soil improver from kitchen waste and agricultural and forestry solid waste, in particular to a method based on subcritical hydrothermolysis-ozone oxidation digestion technology to achieve efficient degradation of kitchen waste and agricultural and forestry solid waste to produce soil improvement The method of agent raw materials. Background technique [0002] For a long time, food waste and agricultural and forestry solid waste have been neglected and managed out of order. In particular, food waste is mainly purchased by some criminals at low prices to raise pigs and refine waste oil, followed by entering landfills and sewers. Since the sundries in the food waste and the toxins produced by fermentation will accumulate in the pig body, it will also have an adverse effect on the health of the eater, and may also cause the infection and spread of zoonotic diseases. Lawbreakers use kitchen ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for producing raw materials of soil improver from kitchen waste and agricultural and forestry solid waste, which solves the problems of existing urban kitchen waste or rural agricultural and forestry solid waste polluting the environment and realizing a low-carbon circular economy

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