Refers to garbage with high recycling value that can enter the waste recycling channel.

Mainly includes: paper (newspapers, leaflets, magazines, used books, cartons and other unpolluted paper products. ), metal (iron, copper, aluminum and other products), glass (glass products such as glass bottles and flat glass), plastic products other than plastic bags (foam plastics, plastic bottles, hard plastics, etc.). ), rubber and rubber products, Tetra Pak packaging such as milk cartons and beverage bottles.

2. Hazardous waste

Garbage containing toxic and harmful chemicals.

Mainly includes: batteries (storage batteries, button cell, etc. ), waste electronic products, waste light bulbs, expired drugs, expired daily cosmetics, hair dyes, pesticide containers, herbicide containers, waste water silver thermometers, waste paint barrels, waste printer cartridges, toner cartridges, etc. The main treatment methods of hazardous waste are safe landfill and incineration.

3. Kitchen garbage

Food scraps and peels produced in the kitchen.

Mainly includes: leftovers, cakes and other food residues, vegetable stems and leaves, animal bones and internal organs, tea residue, fruit residue, fruit shell, melon peel, bonsai and other plant residues, waste edible oil and so on. The main treatment methods of kitchen waste are composting and making feed.

4. Other garbage

Except recyclables, harmful waste and kitchen waste, the general term for all wastes.

It mainly includes: polluted and non-renewable paper (paper cups, photos, carbon paper, pressure sensitive paper, receipt paper, star photos, photo albums, toilet paper, diapers, etc. ), contaminated or other non-recyclable glass, plastic bags and other contaminated plastic products, textiles such as waste clothes, waste ceramics, feminine hygiene products, disposable tableware, shells, cigarette butts, dust, etc.

The main disposal methods of other garbage: the combustible part is burned to generate electricity, and the nonflammable part is sanitary landfilled.

Extended data:

Significance of garbage classification

1. Separating kitchen waste containing perishable organic components provides high-quality raw materials for garbage composting and produces high-quality organic fertilizer, which is beneficial to improving soil fertility and reducing fertilizer application.

2. The kitchen waste with high moisture content is separated, which improves the incineration calorific value of other wastes and reduces the difficulty of secondary pollution control in waste incineration.

3. Classifying harmful waste reduces the contents of heavy metals, organic pollutants and pathogenic bacteria in garbage, which is beneficial to the harmless treatment of garbage and reduces the risk of water, soil and air pollution in garbage treatment.

4. Different kinds of garbage are diverted, which greatly reduces the amount that eventually enters the sanitary landfill and prolongs the service life of the landfill.

5. Increase the proportion of waste recycling, reduce the demand for raw materials and reduce carbon dioxide emissions.

6, popularize knowledge of environmental protection and garbage, enhance the whole society's awareness of the sanitation industry, reduce the difficulty of sanitation workers, and form an atmosphere of respect and care for sanitation workers.

Baidu encyclopedia-garbage