Garbage is a kind of useless waste and an important link in material circulation. It is an unnecessary or useless solid and liquid substance. In densely populated cities, garbage disposal is a headache. The usual practice is to collect it and send it to a landfill for landfill treatment, or burn it in an incinerator.

However, both of them will cause environmental problems, and ending excessive consumption can further reduce the saturation of landfills. Treating garbage in landfills will not only pollute groundwater and give off bad smell, but also reduce the area available for landfill in many cities. Incineration will inevitably produce toxic gases, which will harm living things. Most cities are studying ways to reduce garbage generation and encourage resource recycling.

The significance of garbage classification:

Useful materials, such as paper, plastics, rubber, glass, bottles and cans, metals and waste household appliances, are separated from garbage for recycling, turning waste into treasure. It not only improves the utilization level of garbage resources, but also reduces the amount of garbage treatment. It is an important way and means to realize waste reduction and recycling.

After the garbage is classified and collected, it is convenient for different types of garbage to be classified and treated. For example, organic waste compost fermentation, organic waste made into fertilizer for farmland and greening, inorganic waste landfill with no recycling value, and combustible waste incineration with high calorific value.