The problem of waste classification has been paid attention to in more and more cities. Many cities have waste classification. Can you draw a manual report on waste classification? Many schools will let students draw Waste Classification Manual newspaper and pay attention to the problem of waste classification. Your waste classification manual newspaper picture is simple and good-looking. Have you found it? If not, I'll share it with you.
What are the types of garbage classification
There are four types of waste classification, namely recyclable waste, hazardous waste, wet waste and dry waste. We should all know about recyclable waste and harmful waste. For example, books, metals, plastics and glass bottles are recyclable waste, and batteries, hair dyes, paints and fluorescent lamps are harmful waste. Wet waste is mainly perishable biomass domestic waste, such as food waste, leftovers, expired food, melon peel and fruit core, etc. Dry garbage is very simple, that is, other domestic garbage except recyclable garbage, harmful garbage and wet garbage are regarded as dry garbage.
Benefits of waste classification
1. Reduce land occupation
Some substances in domestic waste are not easy to degrade, causing serious erosion of the land. Waste classification, remove recyclable and non degradable substances, and reduce the amount of waste by more than 60%.
2. Reduce pollution
At present, sanitary landfill and even simple landfill are mostly used for waste treatment in China, occupying tens of thousands of mu of land; Moreover, insects and flies fly indiscriminately, sewage overflows and stinks, seriously polluting the environment.
Waste plastics in the soil will reduce crop production; Discarded waste plastics are eaten by animals, resulting in animal deaths from time to time. Therefore, recycling can also reduce harm.
3. Turn waste into treasure
China uses 4 billion plastic fast food boxes, 500-700 million instant noodle bowls and billions of pairs of disposable chopsticks every year, accounting for 8-15% of domestic waste. One ton of waste plastics can be recycled to 600 kg of diesel. Recycling 1500 tons of waste paper can avoid cutting down trees used to produce 1200 tons of paper. After melting, a ton of cans can form a ton of good aluminum block, which can reduce the mining of 20 tons of aluminum ore. 30% ~ 40% of domestic waste can be recycled. We should cherish this small cost and great benefit resource. We can also use the can to make a pencil case, which is not only environmentally friendly, but also saves resources.
Moreover, other substances in garbage can also be transformed into resources, such as food, plants and fabrics, which can be composted to produce organic fertilizer; Waste incineration can generate electricity, heat or refrigeration; Bricks, tiles and lime soil can be processed into building materials, etc. All kinds of solid waste mixed together is garbage, and sorting is resources. If we can fully tap the resource potential contained in the recycling of domestic waste, Beijing alone can obtain 1.1 billion yuan of economic benefits every year. It can be seen that if the waste generated in the consumption link is classified in time, recycling and reuse is the best way to solve the waste problem.
Significance of waste classification
1. It is a reform of the traditional way of waste recycling and disposal, and it is one of the most effective scientific management methods at present.
2. The purpose is to make use of the existing production level, treat the discarded materials by category, make use of the effective materials and energy, and landfill the useless garbage. This not only improves the utilization level of waste resources, but also reduces the amount of waste disposal. It is an important way and means to realize waste reduction and recycling.
3. The participation of the whole people in relevant knowledge training can enhance the society's attention to the environmental protection industry, increase the employment rate of sanitation workers, and form an atmosphere of respect and concern for sanitation workers.