Garbage classification is divided into the following categories according to the type of garbage:
1. Recyclable garbage
Recyclable garbage mainly includes plastic, glass, waste paper, metal, cloth, etc., which can be recycled to reduce pollution and save resources.
2. Dry garbage
Dry waste is divided into toilet paper, dust, hard to recycle shells, waste products, ceramics, etc. Many people will wonder why toilet paper is non recyclable waste. Because toilet paper will melt when water melts, it is not recyclable paper, similar to cigarette cartons.
3. Wet garbage
This is a good classification. Leftovers, other kitchen wastes and biodegradable wastes belong to wet wastes. Please note that the wet garbage bag is not wet garbage. The correct method is to pour the wet garbage into the garbage can of wet waste and put the garbage bag into the garbage can of recyclable waste.
4. Hazardous waste
Hazardous waste refers to waste containing heavy metals, chemicals and other substances harmful to human health. These wastes cannot be directly buried or burned. It needs special treatment. These wastes are specially used to store batteries, fluorescent lamps, expired medicines and other harmful substances.
The benefits of garbage sorting are obvious. After being classified, the waste is sent to the factory instead of the landfill, which saves land, avoids the pollution caused by landfill or incineration, and can also turn waste into treasure. In this battle between people and rubbish, people turned rubbish from enemies into friends.
At present, sanitary landfill or even simple landfill is mostly used for waste disposal in China, which occupies tens of thousands of mu of land; In addition, insects and flies fly around, sewage overflows and stinks, seriously polluting the environment. Therefore, classified collection of garbage can reduce the amount of garbage treatment and treatment equipment, reduce the treatment cost, reduce the consumption of land resources, and have social, economic and ecological benefits. Sanitation products manufacturer In terms of the advantages of garbage classification:
Reduce land occupation:
Some substances in domestic garbage are not easy to be degraded, causing serious erosion of the land. Garbage classification: remove recyclable and non degradable substances, and reduce the amount of garbage by more than 60%.
Reduce environmental pollution
Waste batteries contain toxic substances such as mercury and cadmium, which will cause serious harm to human beings; Waste plastics in soil will lead to crop yield reduction; Discarded waste plastics are eaten by animals by mistake, leading to animal deaths from time to time. Therefore, recycling can reduce harm.
Turn waste into treasure
China uses 4 billion plastic fast food boxes, 500 million to 700 million instant noodles bowls and billions of pairs of disposable chopsticks every year, which account for 8-15% of domestic waste. One ton of waste plastic can be recycled into 600kg of diesel oil. Recycling 1500 tons of waste paper can avoid cutting trees used to produce 1200 tons of paper. A ton of cans can be melted into a ton of good aluminum blocks, which can save 20 tons of aluminum ore. 30% - 40% of domestic garbage can be recycled, so we should cherish this resource with small costs and large profits. You can also use cans to make pen boxes, which is environmentally friendly and resource saving.
Moreover, other substances in garbage can also be transformed into resources, such as food, plants and fabrics can be composted to produce organic fertilizers; Waste incineration can generate electricity, heat or refrigeration; Bricks, tiles and lime soil can be processed into building materials. All kinds of solid wastes mixed together are garbage, and separation is resource. If we can fully tap the resource potential contained in the recycling of domestic waste, Beijing alone can obtain economic benefits of 1.1 billion yuan every year. It can be seen that if the garbage generated in the consumption link is classified in time, recycling is the way to solve the garbage problem.