Recycling garbage through comprehensive treatment can reduce pollution and save 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%.
Extended data:
Garbage type
1, recyclable
Recyclable materials mainly include waste paper, plastic, glass, metal and cloth.
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 (express packaging paper is other garbage/dry garbage), disposable plastic lunch box tableware, hard plastics, plastic toothbrushes, plastic cups, mineral water bottles, etc.
Glass: mainly includes all kinds of glass bottles, broken glass pieces, thermos bottles, etc. (Mirrors are other garbage/dry garbage)
Metal objects: mainly including cans, cans, etc.
Cloth: mainly includes discarded clothes, tablecloths, towels, schoolbags, shoes, etc.
2. Other garbage
(1) toilet paper
Toilet paper and toilet paper are soluble in water, not recyclable "paper", and there are similar cigarette cases.
(2) bagging the kitchen waste
Commonly used 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.
(3) Shell
In garbage classification, the logo of "fruit shell and melon skin" is peanut shell, which really belongs to kitchen garbage. Waste cooking oil left at home is also classified as "kitchen waste".
(4) Dust
In garbage classification, dust belongs to "other garbage" and litter belongs to "kitchen waste", including failed flowers at home.
3. Kitchen garbage
Kitchen waste (called wet waste in Shanghai) includes 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.
4. Hazardous waste
Hazardous wastes include heavy metals, toxic substances harmful to human health or wastes that cause actual or potential harm to the environment. Including batteries, fluorescent tubes, light bulbs, mercury thermometers, paint buckets, some household appliances, expired drugs and their containers, expired cosmetics, etc. These wastes are usually recycled or landfilled separately.
Baidu encyclopedia-garbage classification