Organic fertilizer colloidal particle capable of fertilizing and stabilizing soil prepared from municipal domestic refuse and preparation method thereof

Abstract

The invention relates to an organic fertilizer colloidal particle capable of fertilizing and stabilizing soil prepared from municipal domestic refuse and a preparation method thereof. The organic fertilizer colloidal particle is prepared from the following components in parts by weight: about 70-90 parts of organic refuse particle, about 10-25 parts of inorganic refuse particle and 0.4-0.5 part of fermentation additive. The fermentation additive is prepared from the following components in parts by weight: 5 parts of purpose-made additive, 30 parts of humus-legume waste, 25 parts of water-soluble linear high-molecular polymer, 25 parts of bentonite or modified bentonite, 10 parts of polyaluminum chloride and 5 parts of potassium polyacrylate. The municipal domestic refuse is recycled, and the working procedure is convenient and is easy to learn and operate. Compared with the traditional refuse incineration power generation, refuse landfill and other treatment modes, the method provided by the invention has the advantages of small occupied area, no discharge of three wastes, small CO2 discharge amount and the like.

Description

technical field [0001] The invention belongs to the technical field of scientific investigation of resources and environment, and relates to an organic fertilizer granule capable of fertilizing and stabilizing soil by using urban domestic garbage and a preparation method thereof. Background technique [0002] Since 1978, my country has entered a stage of sustained and rapid urbanization, with an average annual growth rate of about 0.88%, and by 2011, China's urbanization rate has exceeded 50%. ~10% growth rate. According to the 2014 "China Environmental Status Bulletin", the volume of municipal solid waste removal and transportation in only cities in the country is 179 million tons. With the advancement of urbanization, the development of urban construction and the improvement of residents' living standards, the amount of domestic waste generated in cities and towns in my country will continue to increase day by day. Such a huge amount of urban domestic waste and various har...

AI Technical Summary

Problems solved by technology

Aiming at urban domestic waste with a wide range of sources and complex and diverse material compositions, the current treatment methods for urban domestic waste at home and abroad mainly include landfill, incineration (power generation), composting, and open-air stacking, among which landfill and open-air stacking do not belong to urban areas in essence. The treatment method of domestic waste, the area where domestic waste is concentrated in China's cities and towns is also the area with the most scarce land resources, there is not enough land for us to landfill or pile up domestic waste; domestic waste incineration (power generation) and composting are essentially garbage disposal However, because domestic waste incineration (power generation) and composting require the construction of factories and extensive open-air composting, there are often exhaust gases (especially carcinogenic gases such as dioxins, polycyclic aromatic hydrocarbons, etc.) emissions, most residents are opposed to using them in their houses Domestic waste incineration (power generation) and composting plants will be built in the adjacent areas. In addition, this treatment method requires strict classification and separation of urban domestic waste, and some waste cannot be properly treated. At the same time, by increasing regional CO 2 total emissions

[0004] In short, the domestic waste treatment methods adopted by these developed countries in Europe and the United States are difficult to apply in the areas of rapid urbanization in my country due to the characteristics of tight land resources and arable land, dense population and industries, mixed garbage piles and poor garbage classification effects. The country's domestic waste treatment technology and methods, so it is urgent to develop technical methods for urban domestic waste treatment or urban domestic waste recycling that are suitable for my country's national conditions