What color are the signs of the four categories of trash cans?

There are four colors for garbage classification: red, blue, yellow and green.

1, yellow: non-recyclable garbage: mainly kitchen waste, including peels, vegetable peels and leftovers. ;

2. Green: recyclable garbage: paper, plastic, rubber, metal, glass, etc. ?

3. Red: toxic and harmful wastes: batteries, fluorescent tubes, mercury thermometers, paint buckets, medicines, cosmetics, etc.

4, blue: recyclable garbage: paper, cartons, plastic bottles, scrap metal, cloth, etc.

Recyclable:

It mainly includes waste paper, plastic, glass, metal, cloth and so on.

Waste paper: mainly including newspapers, periodicals, books, various wrapping papers, etc. However, it should be noted that paper towels and toilet paper are too water-soluble to be recycled.

Plastics: all kinds of plastic bags, plastic foams, plastic packaging, disposable plastic lunch boxes and tableware, hard plastics, plastic toothbrushes, plastic cups, mineral water bottles, etc.

Glass: mainly includes all kinds of glass bottles, broken glass pieces, mirrors, thermos bottles and so on.

Metal objects: mainly including cans, cans, etc.

Cloth: mainly includes discarded clothes, tablecloths, towels, schoolbags, shoes, etc.

These wastes can be recycled through comprehensive treatment, reducing pollution and saving resources. If every 1 ton of waste paper is recycled, 850 kilograms of paper can be made, 300 kilograms of wood can be saved, and pollution is reduced by 74% compared with the same output; Every 1 ton plastic beverage bottle can recover 0.7 tons of secondary raw materials; Every recovered 1 ton of scrap steel can produce 0.9 tons of steel, which saves 47% cost compared with ore smelting, reduces air pollution by 75%, and reduces water pollution and solid waste by 97%.

Non-recyclable:

kitchen waste

Include food waste such as leftovers, bones, roots, leaves and peels. After in-situ treatment of compost by biotechnology, 0.6~0.7 tons of organic fertilizer can be produced per ton.

Other garbage:

Including brick and tile ceramics, muck, toilet waste paper, paper towels and other difficult-to-recycle wastes, shells, dust, etc. except the above-mentioned kinds of garbage. Sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.

In fact, great bones are classified as "other rubbish" because they are "hard to corrode". Corn kernels, nut shells, fruit kernels and chicken bones are all kitchen waste.

Toilet paper: Toilet paper and toilet paper are soluble in water, not recyclable "paper". Similarly, there are pottery and cigarette cases.

Bagging of kitchen waste: Ordinary plastic bags, even though degradable, are far more difficult to corrode than kitchen waste. In addition, plastic bags themselves are recyclable garbage. The correct way is to dump the kitchen waste into the trash can and throw the plastic bag into the "recyclable garbage" bucket.

Shell: In garbage classification, the logo of "shell melon skin" is peanut shell, which really belongs to kitchen garbage. Waste cooking oil left at home is also classified as "kitchen garbage".

Dust: In the classification of garbage, dust belongs to "other garbage" and litter belongs to "kitchen garbage", including flowers that have failed at home.

Toxic and hazardous wastes:

Waste containing heavy metals, toxic substances harmful to human health or actual or potential harm to the environment. Including batteries, fluorescent tubes, light bulbs, mercury thermometers, paint buckets, some household appliances, expired drugs, expired cosmetics and so on. These wastes are usually recycled or landfilled separately.