Method for preparing organic fertilizer on basis of urban household garbage

Abstract

The invention discloses a method for preparing organic fertilizer on the basis of urban household garbage. The method comprises the following steps that organic materials selected from the urban household garbage, auxiliary materials and microbial fermentation strains are evenly mixed in a biological organic fertilizer fermentation tank, standing is conducted for 24 h at room temperature, turning over of materials is conducted for 1-3 times at the temperature ranging from 40 DEG C to 55 DEG C, ventilation is conducted for 1-4 h, and standing is conducted for 22-25 h; continuous fermentation is conducted for 14-18 days at the temperature ranging from 55 DEG C to 65 DEG C till the mixture does not have a foul smell, the water content of the whole system is adjusted to 35 wt%, the temperature is adjusted to below 40 DEG C, and the mixture can be taken out from the tank, wherein turning over of the mixed materials is conducted once every other day. According to the method for preparing the organic fertilizer on the basis of the urban household garbage, degradation treatment on the urban household garbage is thorough, the environmental protection problem brought by the urban household garbage is solved, and large-scale production can be achieved.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method for preparing organic fertilizer based on municipal solid waste. Background technique [0002] Municipal solid waste is rich in a large amount of organic materials, and improper disposal will pollute the environment and lead to waste of resources. Fermentation and composting of biodegradable organic materials separated from municipal solid waste can not only obtain organic fertilizers for soil improvement and provide nutrients for crops, but also reduce the risk of environmental pollution. The conventional garbage composting process has the characteristics of long composting cycle, large amount of odor and unstable product quality during the composting process. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a method for preparing organic fertilizer based on municipal...

AI Technical Summary

Problems solved by technology

The conventional garbage composting process has the characteristics of long composting cycle, large amount of odor during composting, and unstable product quality.