Durian shells belong to dry garbage because they are not easy to rot. Although big bones, hard shells, hard fruit shells (coconut shells, durian shells, walnut shells, corn peels and sugarcane peels) and hard fruits (durian kernels and jackfruit kernels) are all counted in the kitchen garbage, they should be classified as dry garbage when classified as wet and dry.

Garbage classification:

Recyclable 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 various 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.

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% of the cost compared with ore smelting, reduces air pollution by 75%, and reduces water pollution and solid waste by 97%.

Other wastes

Other garbage (called dry garbage in Shanghai) includes bricks and tiles, muck, toilet waste paper, paper towels and other wastes that are difficult to recycle, dust, food bags (boxes) and so on. Sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.

Big bones are classified as "other garbage" because they are "hard to corrode". Corn kernels, nut shells, fruit kernels and chicken bones are all kitchen garbage.

Toilet paper: Toilet paper and toilet paper are soluble in water, not recyclable "paper", and there are similar 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 waste".

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

kitchen waste

Types of wet 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.

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.