Garbage classification refers to a series of activities that classify, store, place and transport garbage according to certain regulations or standards, so that it can be transformed into public resources. The purpose of classification is to improve the value and economic value of waste resources, and strive to make the best use of everything.

　Garbage classified storage stage belongs to the public private property. After the garbage is classified and put into use, it becomes a regional quasi public resource of the community where the public is located or the community. After classified transportation to garbage concentration points or transfer stations, garbage will become a public resource and will not be excluded. According to the classification methods of cities at home and abroad, the garbage is generally classified according to the composition and quantity of garbage, combined with the resource utilization and treatment methods of local garbage.

　Everyone throws away a lot of garbage every day. In some areas with good waste management, most of the waste will be treated by sanitary landfilling, incineration, composting, etc., while in more places, simple stacking or landfilling of waste will lead to odor diffusion and pollution of soil and groundwater.



The cost of garbage harmless treatment is very high. According to different treatment methods, the cost of treating a ton of garbage ranges from 100 yuan to hundreds of yuan. People consume a lot of resources, produce, consume and produce garbage in large quantities. The consequences will be disastrous.



According to the classification methods of foreign urban domestic waste, it is generally classified according to the composition and quantity of waste, combined with the resource utilization and treatment methods of local waste. For example, Germany is generally divided into paper, glass, metal and plastic; Australia is generally divided into compostable waste, recyclable waste and non recyclable waste; Japan is generally divided into plastic bottles, recyclable plastics, other plastics, resource waste, large waste, combustible waste, non combustible waste, hazardous waste, etc.