Method for preparing controlled-release culture soil based on garbage soil

Abstract

The invention provides a method for preparing controlled-release culture soil based on garbage soil. According to the method, the garbage soil sorted and stacked in a domestic garbage disposal stationis taken as a basic raw material, the soil mixed with kitchen garbage is rich in multiple nutrients such as N, P, K and organic substances required by crops and cooperates with plant ash rich in plant nutrients such as K, Ca and Mg and phosphate ores rich in P, the mixture is ground into powder, the powder is adequately mixed through ball milling of a ball mill, water is taken as a binder, and high-temperature calcination is carried out so as to prepare the culture soil which is rich in the nutrients required by growth of plants and has a controlled-release function. The method has the advantages that the raw material cost is low, a processing process is simple, and large-scale industrial production is easily realized, and the like; and the method further has the comprehensive advantagesthat the energy consumption is saved, an environment is protected, and resource reutilization of the garbage soil is realized. According to the method, domestic garbage is reduced and recycled, so that the environment is effectively improved, and the production cost is lowered.

Description

technical field [0001] The invention relates to the recycling of solid waste and the preparation of cultivation soil, and specifically belongs to a method for preparing cultivation soil by using garbage soil. The invention relates to the reuse of solid waste, in particular to the transformation of garbage soil into culture soil with nutrient slow release. Background technique [0002] Nowadays, the capacity and level of harmless treatment of domestic waste is relatively insufficient, and it is difficult to achieve harmless treatment of domestic waste in most of the towns, and the recycling rate of waste needs to be improved. Since the 1970s, my country has gradually begun to use the landfill method to dispose of municipal solid waste. Up to now, landfill has become the main disposal method of urban domestic waste in my country. The amount of urban domestic waste treated and disposed by landfill method accounts for more than 70% of the total amount of treatment. The garbage ...

AI Technical Summary

Problems solved by technology

The use of landfill to dispose of domestic waste will face several prominent problems: first, the amount of domestic waste is increasing rapidly at a high rate of 7% to 9% per year, and the area of ​​the landfill required is getting larger and larger; second, the urban area is constantly increasing. Expansion to the surrounding areas and the rapid rise of suburban land prices have made it more and more difficult to select landfill sites, and it is even impossible to find suitable sites. A large number of landfill sites built in my country after the 1970s, especially in the mid-to-late 1980s have already Reaching or about to reach the end of its service life, the problem of re-construction and reuse of the reclaimed field is becoming more and more acute

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