Soil conditioner made by using municipal domestic waste

Abstract

The invention discloses a soil conditioner made by using municipal domestic waste, which comprises a main raw material of municipal domestic waste. According to the invention, CaO, MgO, K2O, Na2O and trace elements which are required by soil are added in the raw material, steps of burdening, grinding, calcining, cooling and grinding to 180-200 meshes after trace elements are blended can be carried out, and steps of homogenizing, examination, packaging the qualified product, and warehousing to obtain the soil conditioner finished product. According to the invention, the raw material is the municipal domestic waste, organic matter in the municipal domestic waste can be used for providing sufficient heat for calcining, and an inorganic substance is used for providing silicon element required by the crops; The product can greatly digest the municipal domestic waste for being as a resource, and can restore the cultivated land polluted by heavy metals, and has good economic benefit or social benefit for large and medium-sized enterprise transition and upgrading.

Description

technical field [0001] The invention relates to a kind of soil conditioner manufactured by using municipal domestic garbage, which belongs to the technical field of agricultural chemical fertilizers. Background technique [0002] At present, there are four ways to deal with municipal solid waste in various places as follows: one is to use its organic matter to incinerate power generation, the other is to dig pits and landfill them after anti-seepage treatment; the third is to use cement kiln to calcinate to produce cement clinker; After classification, the organic matter is fermented to produce organic fertilizer, and the inorganic matter, especially brick and tile concrete, is used to produce building aggregate. These four methods have the following defects: when incineration is used, it is easy to produce dioxin and cause secondary pollution; when using anti-seepage landfill, it is easy to cause leakage, and the stench after fermentation affects the lives of surrounding re...

AI Technical Summary

Problems solved by technology

These four methods have the following defects: when incineration is used, it is easy to produce dioxin and cause secondary pollution; when using anti-seepage landfill, it is easy to cause leakage, and the stench after fermentation affects the lives of surrounding residents; when using cement kiln When using a furnace to calcine municipal solid waste, not only the process is complicated and the investment is large, but also the added value of the product is low; when using classified treatment, the investment is higher, and it is difficult to promote it in various places; especially people obtain hundreds of billions of tons of various resources from the earth every year. Without the behavior of feeding back the land, the natural resources that people rely on for survival have decreased sharply. People's survival and sustainable development have become a topic of great concern to all walks of life.

At present, in large-scale industrial activities, people not only consume a large amount of ore fossil energy and its clay, but also cause serious pollution to the soil due to extensive agricultural production methods, such as lead, cadmium, chromium, arsenic, mercury, etc. Toxic heavy metals such as toxic heavy metals, if these household wastes are simply treated and used as fertilizers and directly spread on the fields, large areas of soil will not be able to grow grain and oil crops, which will have a major impact on my country's grain and oil self-sufficiency, people's health and social stability Therefore, the use of urban domestic waste to manufacture soil conditioners solves the two major pollution problems of cities and cultivated land in one fell swoop.