With the increase in garbage volume, landfills occupy a lot of valuable land, and overloaded operation restricts urban development. There are countless informal landfills, which cause serious pollution to the environment and bring many safety hazards. Heavy rain or sewage can easily induce safety accidents such as collapse, landslide, and dam failure; methane accumulation causes explosion risks; sewage leakage pollutes groundwater and destroys geological stability. Therefore, it is imperative to eliminate stale garbage, eliminate safety hazards, eliminate landfills, repair the land, and restore the ecological environment.
What is stale garbage?
Stale garbage refers to the garbage that has been dug out for treatment after being landfilled. It is generally a long time. In the past, the treatment technology was relatively backward, and most of the garbage was directly treated by landfill. Now this part of the garbage needs to be reprocessed, so it is defined as stale garbage. Stale garbage is the same as stock garbage and informal landfill garbage.
Benefits of stale garbage treatment:
(1) Garbage resource conversion, which can obtain soil resources and make the landfill reused many times.
(2) Harmless garbage treatment can eliminate the environmental pollution of the landfill to the surrounding environment and surface water. According to the environmental remediation of stale garbage, the original pollutants are reasonably removed, the ecological environment protection is improved, and good ecological and social economic benefits are achieved.
(3) Garbage resource regeneration can obtain recyclable resources and complete resource recycling. According to the resource regeneration solution system equipment, humus, flammable materials, metal materials, etc. are screened out to complete the resource regeneration of garbage.
Stale garbage is the product of natural evolution after a long time after landfill. After years of microbial decomposition and fermentation, it usually has a large amount of water and a very low organic matter content. If it is to be dug out and incinerated, it must be screened first, and some of the screened combustibles are used for garbage incineration, and the rest are composted, landfilled, leachate treated, etc. according to the specific situation. So what is the appropriate treatment?
Advanced stale garbage treatment equipment can reduce the harm of harmful substances to the human body. It includes garbage conveyors and other process treatment equipment, a complete set of treatment lines. Stale garbage mainly includes plastic products and scrap iron and other difficult-to-corrode garbage. The sorting system (conveyor, drum screen, wind separator, magnetic separator and other equipment combination) is used to sort out the recyclable materials, combustibles, organic matter, etc. in the domestic garbage. After the screening treatment of each device, the remaining organic matter can be processed by high temperature and high pressure expansion to make organic ecological fertilizer. The ferromagnetic materials screened by the magnetic separator can be sent to the recycling station for reuse. The remaining plastic garbage can be mixed with sawdust to make wood-plastic panels.
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