City life garbage fast and harmless comprehensive treatment method

Abstract

A nonhazardous method for quickly treating the lift garbage in city features that the life garbage is classified into combustible substance, nutritive organic substance, metals and inorganic garbage, the combustible substance is burnt to generate steam used, then to degradate the organic substances, and the inorganic garbage can be used to prepare building materials.

Description

technical field [0001] The invention belongs to the technical field of urban solid waste treatment and is suitable for the construction of urban domestic garbage treatment plants of different scales. Background technique [0002] As we all know, municipal solid waste is produced along with the progress of human civilization, and with the improvement of people's living standards, its quantity is also increasing rapidly, and has become a major public hazard. At present, there are mainly landfill methods, incineration methods and composting methods at home and abroad to deal with garbage. [0003] The landfill method covers a large area and requires anti-seepage treatment. It is also necessary to build a biogas recovery system and a leachate treatment plant, which is likely to pollute the groundwater and the surrounding air, and the resources cannot be recycled; for the large population, the arable land resources are increasingly scarce For our country, it is becoming more and...

AI Technical Summary

Problems solved by technology

[0003] The landfill method covers a large area and requires anti-seepage treatment. It is also necessary to build a biogas recovery system and a leachate treatment plant, which is likely to pollute the groundwater and the surrounding air, and the resources cannot be recycled; for the large population, the arable land resources are increasingly scarce For our country, it is becoming more and more difficult to implement

[0004] The incineration method requires large investment and high operating costs, and it is difficult to treat the fly ash containing dioxins and heavy metals. Even though a very advanced and complex purification system is used, the flue gas still contains a small amount of dioxins and is discharged into the atmosphere, causing long-term pollution. environmental impact; my country's garbage has a large water content, contains a lot of NaCl, and has a low calorific value, which makes the combustion temperature of the garbage low, and it is easy to produce dioxin and HCl gas, causing environmental pollution and boiler corrosion

[0005] The composting method occupies a large area and takes a long time, which is easy to breed mosquitoes and flies, emits bad smell, and is difficult to form large-scale production

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