Method for activating land and recycling garbage in landfill

Abstract

The invention relates to a method for activating land and recycling garbage in a landfill. According to the method, the landfill is deodorized by microbial bacteria first and then excavated, the excavated garbage is directly crushed, and the crushed garbage is preliminarily screened into combustible materials and incombustible materials, specifically, the screened combustible materials are furtherscreened by a wet construction method, the screened combustible materials are subjected to compression and coating operation, the combustible materials can be subjected to cracking processing througha cracking device and a subcritical water decomposition device to respectively prepare secondary plastics and secondary energy sources, and thus higher resource recycling value is achieved; the incombustible materials are backfilled in the landfill or are recycled; therefore, the original land of the landfill is regenerated and activated, the garbage is recycled, and then good economic benefits and green energy environmental protection effects are produced.

Description

technical field [0001] The invention relates to a treatment method of a landfill of garbage, in particular to a method for activating the land of the landfill of garbage and reclaiming and reusing garbage. Background technique [0002] In the early days, people lacked awareness of environmental protection, did not classify and recycle garbage, and directly disposed of garbage through landfills. In the past, lack of planning and management caused problems such as dirty environment in landfills and pervasive stench. With the progress of the times, Nowadays, landfill is no longer used to dispose of garbage, but the garbage will be sorted and then incinerated. [0003] Since the waste landfill did not sort and recycle the waste in the past, the waste contained combustible and non-combustible waste. Therefore, when disposing of the abandoned waste landfill, it is necessary to carry out waste screening operations to separate the waste into combustible and non-combustible waste. N...

AI Technical Summary

Problems solved by technology

[0002] In the early days, people lacked awareness of environmental protection, did not classify and recycle garbage, and directly disposed of garbage through landfills. In the past, lack of planning and management caused problems such as dirty environment in landfills and pervasive stench. With the progress of the times, Nowadays, landfill is no longer used to dispose of garbage, but garbage is sorted and then incinerated

[0003] Since the waste landfill did not sort and recycle the waste in the past, the waste contained combustible and non-combustible waste. Therefore, when disposing of the abandoned waste landfill, it is necessary to carry out waste screening operations to separate the waste into combustible and non-combustible waste. Non-combustible, therefore, some operators have developed a dry sorting method, which is used to sort garbage. The equipment is cheap, but it requires more manual sorting personnel, and the moisture content of the dry sorting method needs to be very low. , so it will be affected by the weather, and the combustibles that are screened out are sticky with sand and are not easy to separate, which makes the combustibles have a very high sand content, resulting in incomplete incineration, and the content of the bottom slag after incineration is too high High, shortening the service life of the incinerator. In addition, before the excavation of the garbage, the garbage needs to be exposed to the sun, so the space requirement is high, and it is easy to cause the odor to escape, which will affect the residents near the garbage landfill. In the process of processing, regardless of storage or transportation, it will cause secondary pollution to the environment

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