1, red
Red stands for hazardous waste. Harmful substances include waste batteries, fluorescent tubes, paints, expired drugs, cosmetics and other substances that are not recyclable and have certain pollution hazards.
2. Green (surname); green
Green stands for kitchen garbage. Kitchen waste can be used as fertilizer for plant nutrients, which can be decomposed and absorbed by natural microorganisms and plants after being buried in soil, thus playing a role in recycling waste.
3. Blue
Blue represents recyclable garbage, including valuable substances such as plastic, paper and metal, which will be incorporated into the waste recovery system for resource recovery.
Step 4: Gray
In addition to harmful substances and recyclable substances, garbage, bricks, ceramics, muck and other wastes that are difficult to recycle are generally burned and buried.
The purpose of garbage classification is to improve the resource value and economic value of garbage, strive to make the best use of it, reduce the amount of garbage treatment and the use of treatment equipment, 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 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.