The colors and labels of the garbage cans represent the following:
1. Red
Red represents hazardous waste. Hazardous materials include waste batteries, fluorescent tubes, paints, expired medicines, cosmetics, and other non-recyclable substances with certain pollution hazards.
2, green
Green represents food waste. Food waste can be used as fertilizer for plant nutrients, and can be decomposed and absorbed by nature's microorganisms and plants after buried in the soil, which can play a role of waste reuse.
3. Blue
Blue represents recyclable waste, including plastics, paper, metals and other materials with value, which will be incorporated into the waste recycling system for recycling and disposal.
4, gray
In addition to hazardous substances and recyclable substances other than garbage, bricks and mortar, ceramics, slag and other difficult to recycle the waste, such substances are generally incinerated, buried and other disposal.
Expanded Information
The significance of garbage classification:
1, reduce land erosion. Garbage classification, remove the recyclable, not easy to degrade the material, reduce the amount of garbage up to 60% or more.
2, reduce pollution. Waste plastics in the soil will lead to crop yield reduction; abandoned waste plastics are mistakenly eaten by animals, resulting in the death of the animal accidents occur from time to time. Therefore recycling can also reduce the harm.
3, waste into treasure. Other substances in the garbage can also be converted into resources, such as food, grass and fabrics can be composted, the production of organic fertilizers, consumption links generated by the waste if the timely classification, can fully tap the recycling of domestic waste contained in the resource potential.
Baidu Encyclopedia - Garbage Classification