Red trash can: represents harmful substances, and is sometimes marked in orange. Harmful substances include waste batteries, fluorescent tubes, paints, expired drugs, cosmetics and other substances that are not recyclable and have certain pollution hazards.
Blue trash can: represents recyclable garbage, including valuable substances such as plastic, paper and metal, which will be included in the waste recycling system for resource recovery.
Green trash can: in the case of various 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.
Yellow trash can: a special trash can representing medical waste, which is generally only used in hospitals, health stations and other medical places.
Gray trash can: garbage other than harmful substances and recyclable substances, bricks, ceramics, muck and other wastes that are difficult to recycle are generally burned and buried.
Classification principle
Divide and use it
The purpose of classification is to separate the garbage, use the existing manufacturing capacity, recycle the reused products, including material utilization and energy utilization, and landfill the useless garbage that can not be used for the time being.
suit measures to local conditions
Different places, regions, societies (districts) and communities have different geography, economic development level, waste recycling capacity of enterprises, sources of residents, living habits, economic and psychological endurance.
Conscious autonomy
Communities and residents, including enterprises and institutions, have gradually formed a code of conduct of "reduction, recycling, self-awareness, and autonomy", innovated the garbage classification and treatment mode, and become the main force of garbage reduction, classification, recycling and utilization.
Classified meaning
Garbage classification is the foundation of garbage terminal treatment facilities. The implementation of domestic waste classification can effectively improve the urban and rural environment and promote the recycling of resources. On the basis of scientific and reasonable classification of domestic waste, we will build a supporting system for domestic waste classification, establish a collection and transportation system that matches the classification of waste according to the classified varieties, establish a recovery system that is coordinated with the utilization of renewable resources, improve the terminal treatment facilities connected with waste classification, and ensure the interconnection of classified collection, transportation, recovery, utilization and treatment facilities. Only by doing a good job in supporting systems such as garbage sorting, garbage recycling and disposal can we operate more efficiently. Garbage classification is related to the construction of a resource-saving and environment-friendly society, which is conducive to further improving the quality of new urbanization and the level of ecological civilization construction in China.
The advantages of garbage sorting treatment are as follows:
one
Reduce land occupation. Garbage classification, removing recyclable and non-degradable substances, reducing the amount of garbage by more than 50%.
two
Reduce environmental pollution. Waste batteries contain toxic substances such as metallic mercury, which will pose a serious threat to human beings. When waste plastics enter the soil, it will lead to crop yield reduction, so recycling can reduce these hazards.
three
Turn waste into treasure. 1 ton of waste plastics can recover 600kg of unleaded gasoline and diesel oil. Recycling 1500 tons of waste paper can avoid cutting down trees used to produce 1200 tons of paper. Therefore, garbage recycling is both environmentally friendly and resource-saving.