2. Green: In the case of a variety of plastic trash cans, green represents kitchen waste, which can be used as fertilizer for plant nutrients, and can be decomposed and absorbed by natural microorganisms and plants after burial, thus playing a role in recycling waste.
3. Blue: It means recyclable garbage, including valuable materials such as plastic, paper and metal, which will be included in the waste recycling system for resource recovery.
4. Gray: In addition to harmful substances and recyclable substances, garbage, bricks, ceramics, muck and other wastes that are difficult to recycle are generally burned and buried.
5. Yellow: It represents a special garbage bin for medical waste, which is generally only used in hospitals, health stations and other medical places.
Garbage classification:
Recyclable (blue symbol) refers to waste paper, waste plastic, waste metal, waste glass, waste packaging, waste textiles and waste paper-plastic-aluminum composite packaging suitable for recycling.
Hazardous waste (red sign) refers to toxic and harmful substances in domestic garbage, mainly including waste batteries, waste fluorescent tubes, waste thermometers, waste sphygmomanometers, waste drugs and their packaging, waste paints, waste solvents and their packaging, waste disinfectants and their packaging, waste electronic and electrical products, waste films and photographic paper.
Kitchen waste (green sign) refers to the waste generated by residents' daily life, food processing, food service, dining and other activities, including abandoned leaves, leftovers, leftovers, peels, eggshells, tea dregs, bones and so on.