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 waste, including plastics, paper, metals and other valuable materials, which will be incorporated into the waste recycling system for the treatment of renewable resources.
Step 4: Gray
In addition to harmful substances and recyclable materials, bricks, ceramics, muck and other refractory wastes are generally burned and buried.
Extended data:
The significance of garbage classification:
1, reducing soil erosion. Garbage sorting, removing recyclable and non-degradable substances, reducing the total amount of garbage by 60%.
2. Reduce pollution. Waste plastics in soil will reduce crop yield; Waste plastics are eaten by animals by mistake, which often leads to animal death. So recycling can also reduce harm.
3. Turn waste into treasure. Other substances in garbage can also be converted into resources. For example, food, plants and fabrics can be composted to produce organic fertilizers. If the garbage generated in the consumption link is classified in time, the resource potential contained in the recycling of domestic garbage can be fully tapped.
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