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Sort it in garbage bags and then diligently go to the ......
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The methods of disposal of household waste include landfill, incineration, and composting.
In some villages, towns or small counties, there are still a large number of unsanitary landfills, that is, digging the ground into pits without any treatment, filling in garbage and burying them, which has a great impact on the environment. Incineration is the most offensive method of disposal, but it is not. Incineration is the best way to achieve the three modernizations in waste treatment
Harmlessness, reduction, recycling, especially reduction, can successfully reduce the volume by about 90%.
Composting mainly uses the organic matter components in the garbage, usually there are two types: anaerobic fermentation and aerobic fermentation, through fermentation to achieve the stabilization of components, and obtain the by-product combustible gas.
Sorting of garbage
The types of garbage are generally divided into five types: green, yellow, red, blue, and gray. Garbage classification generally refers to a series of activities that classify and store, classify and put into garbage according to certain regulations or standards, and transform them into public resources. The purpose of classification is to improve the resource value and economic value of garbage, strive to make the best use of materials, reduce the amount of garbage disposal and treatment equipment, reduce the cost of treatment, reduce the consumption of land resources, and have social, economic, ecological and other benefits.
Garbage belongs to the private property of the public in the stage of classification and storage, and the garbage becomes a regional quasi-public resource in the community or community where the public is located after being classified and put into the public, and it becomes a public resource without exclusion after being classified and transported to the garbage concentration point or transfer station. From the perspective of the methods of domestic waste classification in various cities at home and abroad, most of them are classified according to the composition and amount of garbage, combined with the resource utilization and treatment methods of local garbage.
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At present, there are four main ways to dispose of municipal waste in the world: sorting, landfilling, composting and incineration.
1 Landfill. Landfill disposal takes up a lot of land. At the same time, the harmful components in garbage will also cause serious pollution to the atmosphere, soil and water sources, which not only damages the ecological environment, but also seriously endangers human health.
2 Compost. Composting treatment should sort and classify garbage, requiring a high organic content of garbage. Moreover, the composting process cannot be reduced, and it still needs to occupy a lot of land.
3 Incineration. The essence of incineration is to oxidize organic waste into inert gaseous substances and inorganic non-combustibles under the conditions of high temperature and sufficient oxygen supply to form stable solid residues. First, the waste is burned in an incinerator to release heat energy, and then the waste heat** can be used to generate heat or electricity. After the flue gas is purified, it is discharged, and a small amount of residual residue is discharged, landfilled or used for other purposes.
Its advantages are rapid volume reduction and complete high temperature harmlessness, small footprint, low impact on the surrounding environment, and thermal energy**. Therefore, incineration of MSW is an effective treatment method for harmlessness, reduction and recycling. With the continuous enhancement of people's environmental awareness and the improvement of comprehensive utilization technologies such as thermal energy, the proportion of domestic waste treatment using incineration technology in various countries around the world is increasing year by year.
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Due to the rapid development of modern industry and urbanization, the flooding of solid waste has become an environmental pollution problem. Once garbage is generated, the wind will blow fine particles into the air, causing pollution of the atmospheric environment.
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1. Incineration treatment: a method of placing domestic garbage in a high-temperature furnace to fully oxidize the combustible components in it, and the heat generated is used for power generation and heating. 2. Composting treatment:
The domestic garbage is piled up into piles, kept warm to 55 to 70 degrees Celsius for storage, fermentation, and with the help of the ability of microorganisms in the garbage to decompose organic matter into inorganic nutrients. After composting, household waste becomes hygienic, odorless humus.
Hope it helps.
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