There are four main types of garbage classification: recyclables, kitchen waste, hazardous garbage, and other garbage (dry garbage).
Recyclables mainly include five categories: plastic, cellophane, metal and cloth.
Kitchen waste (called wet waste in Shanghai) mainly includes food wastes such as leftovers, vegetable roots and leaves, bones, and peels. Compost can be processed on-site through biotechnology, and 0.6 to 0.7 tons of organic fertilizer can be produced per ton.
Hazardous garbage refers to waste that contains heavy metals and toxic substances that are harmful to human health, or that causes actual or potential harm to the environment. Including batteries, light bulbs, mercury thermometers, paint buckets, some home appliances, expired medicines and expired cosmetics. These wastes are generally recycled separately or landfilled.
Other garbage (referred to as dry garbage in Shanghai) mainly includes bricks, ceramics, muck, toilet waste paper, paper towels and other wastes that are difficult to recycle, dust, and food bags (boxes) other than the above-mentioned types of garbage. Generally, sanitary landfill treatment is adopted, which can effectively reduce the pollution of groundwater, surface water, soil and air.