Currently around the classification of garbage bags color requirements are not the same. For example, Shanghai is black, red, curry and blue, and some parts of Guangdong Province are black, red, green and gray. So the color of classified garbage bags should be determined by local policies and regulations.
Different colors of classified garbage bags represent different categories of garbage. Generally speaking, classified garbage bags are divided into black, red, blue, green, curry, yellow and gray.
1, black: black bags generally store household garbage. For example, put some of the more private garbage, placed in the restroom location of the garbage bag, generally use black.
2, red: represents 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.
3. Blue: represents recyclable waste, including plastics, paper, metals and other substances with value, which will be included in the waste recycling system for recycling and disposal.
4, green, curry: in the case of a combination of multiple plastic trash cans, green and curry on behalf of food waste, food waste can be used as fertilizer for plant nutrients, soil burial can be decomposed and absorbed by the nature of microorganisms and plants, to play a role in the reuse of waste.
5, gray: in addition to hazardous substances and recyclable materials other than garbage, bricks and mortar, ceramics, dirt and other difficult to recycle waste, such substances are generally incinerated, buried and other processing.
6, yellow: yellow garbage bags are medical waste bags, used to place medical infectious waste, such as scrapped blood bags, blood-tainted waste (hemostatic patches, cotton balls and so on), as well as blood-tainted other waste.
What is Garbage Classification
Garbage classification (Garbageclassification), generally refers to a series of activities in which garbage is categorized according to certain regulations or standards for storage, placement and handling, and thus transformed into a public **** resource.
The purpose of garbage classification is to improve the resource value and economic value of garbage, reduce the amount of garbage disposal and the use of treatment equipment, reduce the cost of treatment, reduce the consumption of land resources, with social, economic and ecological benefits in several aspects.
The garbage belongs to the public's private goods at the stage of classification and storage, the garbage becomes a regional public **** resource in the district or community where the public is located after it is classified and put in by the public, and the garbage becomes a public **** resource without exclusiveness after it is classified and carried to the garbage centralized point or transfer station. From the domestic and foreign cities on the classification of domestic garbage method, most of them are based on the composition of the garbage, the amount of production, combined with the local garbage resource utilization and treatment methods and so on to classify.
The significance of garbage classification
The classification of garbage is the basis for the operation of garbage terminal treatment facilities, and the implementation of the classification of domestic garbage can effectively improve the urban and rural environments and promote the recycling of resources. Should be based on the scientific and reasonable classification of domestic garbage, corresponding to carry out the construction of domestic garbage classification supporting system, according to the classification of varieties to establish and garbage classification matching collection and transportation system, the establishment of the recycling system coordinated with the use of renewable resources, and improve and garbage classification connected with the terminal processing facilities, in order to ensure that the classification of collection and transportation, recycling, utilization and processing facilities are interconnected. Only when garbage is properly categorized can supporting systems such as garbage collection and treatment operate more efficiently. Garbage classification and treatment is related to the construction of resource-saving, environmentally friendly society, conducive to the quality of China's new urbanization and ecological civilization to further improve the level of construction.
The advantages of garbage classification and treatment are as follows:
One reduces the occupation of land
Reduces the occupation of land. Garbage classification, remove the recyclable, not easy to degrade the material, reduce the amount of garbage up to 50% or more.
Two reduce environmental pollution
Reduce environmental pollution. Discarded batteries and other batteries contain toxic substances such as metallic mercury, which can pose a serious threat to human beings, and waste plastics enter the soil, which can lead to a reduction in crop yields, so recycling can reduce these hazards.
Three waste into treasure
Waste into treasure. 1 ton of waste plastics can be back to refining 600 kilograms of unleaded gasoline and diesel fuel. Recycling 1500 tons of waste paper, can avoid cutting down the forest for the production of 1200 tons of paper. Therefore, waste recycling is both environmentally friendly and resource-saving.