Generally divided into five kinds of green, yellow, red, blue, gray.
1, red: on behalf of hazardous substances, sometimes also marked with orange, hazardous substances, including waste batteries, fluorescent tubes, paints, expired drugs, cosmetics and other non-recyclable and with a certain pollution hazards.
2, green: in the case of a combination of multiple plastic trash cans, green represents food waste, food waste can be used as fertilizer for plant nutrients, soil burial can be decomposed and absorbed by nature's micro-organisms and plants, play a role in the reuse of waste.
3, blue: on behalf of recyclable waste, including plastic, paper, metal and other materials with value, these substances will be included in the waste recycling system, for resource recycling disposal.
4, gray: in addition to hazardous substances and recyclable substances other than garbage, bricks and mortar, ceramics, dirt and other difficult to recycle waste, these substances are generally incinerated, buried and other treatment.
5, yellow: on behalf of the medical waste special trash cans, generally only used in hospitals, health stations and other medical places.
Expanded Information
October 2003, the state introduced the "municipal household waste classification signs". According to the unified symbols set by the state, domestic garbage is reclassified into three categories, which are recyclables, hazardous garbage and other garbage. Recyclables indicate garbage that is suitable for recycling and resource utilization, including paper, plastics, glass, fabrics, bottles and cans, etc., and are collected in blue garbage containers; hazardous garbage indicates garbage that contains hazardous substances and requires special safety treatment, including batteries, lamps and daily-use chemicals, etc., and is collected in red garbage containers; and other garbage indicates garbage that is not categorized and is collected in gray garbage containers.
In our country in October 2003, the state introduced the "domestic garbage rules and regulations". According to the uniform symbols set by the state, household garbage is reclassified into four categories, which are recyclable garbage, non-recyclable garbage, hazardous garbage and other garbage. Recyclables indicate garbage that is suitable for recycling and resource utilization, including paper, plastics, glass, fabrics, bottles and cans, etc., and are collected in blue garbage containers; hazardous garbage indicates garbage that contains hazardous substances and requires special safety treatment, including batteries, lamps and household chemicals, etc., and is collected in red garbage containers; and other garbage indicates garbage outside the classification, and is collected in grey garbage containers.
Classification of garbage cans, whether it is from his real sense of the use of value or practical value, or his quality and price are prominent, people first classification of garbage cans, for life in each family classification of garbage cans are silent and selfless, in the home when it is most needed it will appear in front of us, for classification of garbage cans we have been very consciously has been to it by default! For the classification of garbage cans we have been very consciously have defaulted to it as a necessity of life is a part of the family. When the overall change of classified garbage cans realize their own value and surpass themselves, it can show the momentum of development. Wide market and boundless development potential, all to life and environmental protection has brought an invisible force.
Reference:Baidu Encyclopedia-Classified Garbage Can