Material recycling can save energy and protect the environment, and prevent excessive consumption burden on the earth.
With the rapid development of China's economy, the progress of skills, and the slowdown of upgrading, more and more commodities will lose their use value, become waste commodities, and enter the stage of recycling waste commodities. Therefore, it is very important to establish a standardized recycling market for waste commodities, so that useful resources can be effectively utilized, harmful resources can be properly solved, and environmental pollution can be prevented.
Material recovery is only limited to waste collection and distribution, and there is still a lot of work to be done in urban areas to classify and sell to consumer enterprises after network recovery and distribution. For example, in terms of recycling, relying on street offices and village committees, vendors bought along the street are standardized, people are cut, clothing is unified, training is unified, and network governance is implemented. At the same time, take government agencies and units as the pilot, provide on-site service, and try to collect all the garbage.
In the distribution and sales after classification, material recovery should be bound to merchants in a combined way as far as possible, and form a relatively fixed supply and marketing relationship with downstream consumer enterprises in a small amount and scope to complete the industrialized operation of renewable resources.
At the same time, we will gradually study and develop the secondary processing and comprehensive application of waste materials, complete the on-site resource utilization, further improve the application degree of waste, and lay the foundation for establishing a recycling system of renewable resources suitable for the characteristics of China's socialist market economy.
2. Value embodiment
Application value: For every ton of scrap steel recovered, 850 kg of steel can be made, which can save 20 tons of iron ore and 0/.2 tons of standard coal compared with iron ore steelmaking. Recycling waste paper 1 ton can regenerate 800 kilograms of good paper, save trees 17, use less soda ash 240 kilograms, reduce papermaking purification emissions by 75%, and save papermaking power consumption by 40%-50%.
Value of waste plastics: By recycling waste plastics to refine gasoline and diesel, more than 700 liters of unleaded gasoline and diesel can be consumed from 1 ton of waste plastics. Related articles: Talking about plastic bottle recycling.
Value of waste cans: After being dissolved, waste cans can be recycled 100% for countless times to form new cans, and can also be made into automobile, airplane parts or furniture.
Value of waste glass: 1 ton of waste glass can be recycled and consumed 20,000 500g bottles. 20% less than using new raw materials. Recycling 1 ton waste glass can save 720kg of quartz sand, 250kg of soda ash, 60kg of feldspar powder, 0/0t of coal and 400 kwh of electricity.
Extended data
There are usually three types of waste:
1, returned by the production itself, such as cutting head and tail, residual injection, waste ingots, waste molds and steel stains in the process of steel casting, branches and bark in wood cutting, etc. ;
2, produced in the process of processing, such as chips, scraps, wood chips, shavings, etc. produced in the process of mechanical processing. In wood mechanics;
3. Wastes and wastes during use, such as abandoned machinery and equipment, damaged plastics, resins, glass, etc. With the continuous expansion of production scale and the continuous improvement of living consumption level, the amount of waste materials will increase. Actively recycling waste materials can turn waste into treasure, turn harm into benefit, protect environmental sanitation and promote production development.
Baidu encyclopedia-recycling of waste materials
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