What is the concept of domestic waste classification?

Garbage classification refers to a series of activities that classify, store, put in and carry garbage according to certain regulations or standards, thus turning it into public resources. The purpose of classification is to improve the resource value and economic value of garbage, make the best use of it, reduce the amount and equipment of garbage treatment, reduce the treatment cost and reduce the consumption of land resources, which has social, economic and ecological benefits.

Garbage belongs to the public's private articles in the stage of classified storage. After being classified by the public, it becomes a regional quasi-public resource in the community where the public is located. Classified transportation to garbage collection points or transfer stations becomes a non-exclusive public resource. Judging from the classification methods of municipal solid waste at home and abroad, most of them are classified according to the composition and output of garbage, combined with the resource utilization and treatment methods of local garbage.

The advantages of garbage sorting treatment are as follows:

Reduce land erosion

Some substances in domestic garbage are not easy to degrade, which makes the land seriously eroded. Garbage sorting, removing recyclable and non-degradable substances, reducing the amount of garbage by more than 60%.

Reduce pollution

In China, sanitary landfill or even simple landfill is mostly used for garbage disposal, covering tens of thousands of acres; Moreover, insects and flies fly around, sewage overflows and stinks, which seriously pollutes the environment.

Waste plastics in soil will lead to crop yield reduction; Waste plastics are eaten by animals by mistake, resulting in accidents of animal death. So recycling can also reduce the harm.

turn waste into treasure

China uses 4 billion plastic fast food boxes, 500-700 million instant noodle bowls and billions of disposable chopsticks every year, accounting for 8- 15% of domestic garbage. 1 ton of waste plastics can recover 600kg of diesel oil. Recycling 1500 tons of waste paper can avoid cutting down trees used to produce 1200 tons of paper. A ton of cans can be melted to form a ton of good aluminum blocks, and 20 tons of aluminum ore can be mined less. 30%~40% of domestic garbage can be recycled, so we should cherish this small-scale and large-scale resource. You can also use cans as pencil boxes, which is environmentally friendly and saves resources.

Moreover, other substances in garbage can also be transformed into resources, such as food, vegetation, fabrics, etc., which can be composted to produce organic fertilizer; Garbage incineration can generate electricity, heat or cool; Bricks and lime soil can be processed into building materials and so on. If we can fully tap the resource potential contained in recycling domestic garbage. It can be seen that the best way to solve the garbage problem is to classify and recycle the garbage generated in the consumption link in time.

abstract

The benefits of garbage sorting are obvious. After sorting, the garbage is sent to the factory instead of landfill, which not only saves land, but also avoids the pollution caused by landfill or incineration, and can also turn waste into treasure. In this battle between man and garbage, people turned garbage from enemies into friends.

Therefore, classified collection of garbage can reduce the quantity and equipment of garbage disposal, reduce the disposal cost and reduce the consumption of land resources, which has social, economic and ecological benefits.