Author: 爽 李
Minimum iOS version: 9.0
Recyclables mainly include waste paper, plastic, glass, metal and cloth.
Waste paper: mainly including newspapers, periodicals, books, various packaging papers, etc. However, it should be noted that paper towels and toilet paper are not recyclable due to their high water solubility.
Plastic: all kinds of plastic bags, plastic foam, plastic packaging, disposable plastic lunch boxes, tableware, hard plastic, plastic toothbrushes, plastic cups, mineral water bottles, etc.
Glass: mainly includes various glass bottles, broken glass pieces, mirrors, thermos bottles, etc.
Metal objects: mainly including cans, cans, etc.
Cloth: mainly including waste clothes, tablecloths, face towels, school bags, shoes, etc.
Through comprehensive treatment and recycling of these garbage, pollution can be reduced and resources can be saved. For example, for every ton of waste paper recovered, 850 kg of paper can be made, 300 kg of wood can be saved, and pollution can be reduced by 74% compared with equivalent production; for every ton of plastic beverage bottles recovered, 0.7 tons of secondary raw materials can be obtained; 0.9 tons of steel is smelted, which is 47% less cost than ore smelting, 75% less air pollution, 97% less water pollution and solid waste.
Other (dry garbage)
Other garbage (called dry garbage in Shanghai) includes bricks and ceramics, muck, waste paper from toilets, paper towels and other difficult-to-recycle wastes, fruit shells, dust, and food bags (boxes) in addition to the above types of garbage. Taking sanitary landfill can effectively reduce the pollution to groundwater, surface water, soil and air.
The big stick bone is included in "other garbage" because it is "difficult to corrode". Corn kernels, nut shells, fruit cores, chicken bones, etc. are kitchen waste. 
Toilet paper: Toilet paper and toilet paper dissolve in water and are not considered "recyclable" "paper". Similar ones include cigarette cases.
Kitchen garbage bags: The commonly used plastic bags, even if they are degradable, are far more difficult to corrode than kitchen garbage. In addition, the plastic bag itself is recyclable garbage. The correct approach should be to pour the kitchen waste into the trash can, and throw the plastic bags into the "recyclable trash" bin.
Fruit shells: In the garbage classification, the "fruit shell melon skin" logo is peanut shells, which really belong to kitchen waste. The waste cooking oil used at home is also classified as "kitchen waste".
Dust: In the classification of garbage, dust belongs to "other garbage", but the fallen branches and leaves belong to "kitchen garbage", including flowers that bloom at home.
Food waste (wet garbage)
Kitchen waste (wet waste in Shanghai) includes food waste such as leftovers, bones, root vegetables, peels and peels. Through bio-technology on-site composting, it can produce 0.6-0.7 tons of organic fertilizer per ton.
Harmful garbage contains heavy metals that are harmful to human health, toxic substances, or wastes that cause actual or potential harm to the environment. Including batteries, fluorescent tubes, light bulbs, mercury thermometers, paint buckets, some home appliances, expired drugs, expired cosmetics, etc. These wastes are generally collected or disposed of separately.