What kinds of garbage can be divided into? Why do you want to classify?

Garbage types are divided into recyclable garbage and non-recyclable garbage.

Recyclable:

It mainly includes waste paper, plastic, glass, metal, cloth and so on.

Non-recyclable:

1, kitchen waste: including food waste such as leftovers, bones, roots, leaves and peels.

2. Other garbage: including bricks and tiles, muck, toilet waste paper, paper towels and other wastes, shells, dust and so on that are difficult to recycle. Sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.

Classification reason:

1, reducing land occupation: some substances in domestic garbage are not easy to degrade, which makes the land seriously eroded. Garbage sorting, removing recyclable and non-degradable substances, reducing the amount of garbage by more than 60%.

2. Reduce pollution: At present, sanitary landfill or even simple landfill is mostly used for garbage disposal in China, covering an area of tens of thousands of mu; Moreover, insects and flies fly around, sewage overflows and stinks, which seriously pollutes the environment.

Waste batteries contain toxic substances such as mercury and cadmium, which will cause serious harm to human body. Waste plastics in soil will lead to crop yield reduction; Waste plastics are eaten by animals by mistake, resulting in accidents of animal death. So recycling can also reduce the harm.

3. Turning waste into treasure: China uses 4 billion plastic snack boxes, 500-700 million instant noodle bowls and billions of disposable chopsticks every year, accounting for 8- 15% of domestic waste. 1 ton of waste plastics can recover 600kg of diesel oil. Recycling 1500 tons of waste paper can avoid cutting down trees used to produce 1200 tons of paper. A ton of cans can be melted to form a ton of good aluminum blocks, and 20 tons of aluminum ore can be mined less.

30%~40% of domestic garbage can be recycled, so we should cherish this small-scale and large-scale resource. You can also use cans as pencil boxes, which is environmentally friendly and saves resources.

Moreover, other substances in garbage can also be transformed into resources, such as food, vegetation, fabrics, etc., which can be composted to produce organic fertilizer; Garbage incineration can generate electricity, heat or cool; Bricks and lime soil can be processed into building materials and so on.

Extended data

Principle of garbage classification:

1, divided

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.

2, according 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.

Step 3 be conscious and independent

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.

4. Penalties for emission reduction subsidies exceeding emission limits

Formulate waste emission standards for units and residents, and subsidize those below this emission standard; Those who exceed this emission standard will be punished. The more emissions are reduced, the more subsidies will be provided, and the more emissions exceed the standard, the heavier the punishment will be, and the enthusiasm of units and residents to implement source emission reduction and emission control will be improved.

5. Bundled services focus on performance.

In the case that residents have not taken voluntary actions and the resources of neighborhood committees and governments are insufficient, enterprises such as property management companies need to intervene to promote classified emissions. However, it is difficult to make a profit only by undertaking classified emissions, and it is impossible for enterprises to intervene. The implementation of bundled services can solve this problem. Combining classified emission service with garbage collection and transportation and dry and wet garbage treatment can promote the capitalization of garbage classification and ensure the reasonable profit of enterprises. ?

Reference materials Garbage classification Baidu Encyclopedia