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1. Incineration.
Incineration is a method in which garbage is placed in a high-temperature furnace to sufficiently oxidize the combustible components in it, and the heat generated is used for power generation and heating. The waste-to-energy system jointly developed by Westinghouse and O'Connor has been successful.
2. Composting will pile up domestic garbage into piles, keep it warm to 55 70 storage, fermentation, and decomposition with the help of microorganisms in the garbage. the ability to decompose organic matter into inorganic nutrients. After composting, household waste becomes hygienic, odorless humus.
3. Reduce the land occupation, some substances in the domestic garbage are not easy to degrade, so that the land is seriously eroded. Garbage classification, remove substances that can be degraded and are not easy to degrade, and reduce the amount of garbage by more than 60%.
4. Reduce pollution.
At present, China's garbage disposal mostly adopts sanitary landfill or even simple landfill, occupying tens of thousands of acres of land; And insects and flies fly around, sewage overflows, stench, and seriously pollutes the environment. Waste plastics in the soil can lead to reduced crop yields; Waste plastic discarded is accidentally eaten by animals, resulting in accidents that lead to the death of animals from time to time. Therefore, the use of ** can also reduce harm.
5. Turn waste into treasure.
China uses 4 billion plastic fast food boxes, 570 million instant noodle bowls, and billions of pairs of disposable chopsticks every year, which account for 8.15% of household waste. 1 ton of waste plastic can be used to recycle 600 kg of diesel. **1,500 tonnes of waste paper, exempt from the felling of trees used to produce 1,200 tonnes of paper.
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The "Lvrong" brand "organic solid waste degradation furnace" produced by Linwei Environmental Protection is an organic waste terminal treatment equipment specially developed for the characteristics of scattered residence, inconvenient transportation and non-classification of garbage in China's rural population.
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Garbage sorting. Then it is processed centrally.
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Garbage disposal is to quickly remove garbage, carry out harmless treatment, and finally make reasonable use of it. The garbage disposal market is basically sorted first and then processed first. The most commonly used treatment method is landfill, which is very slow and covers a wide area.
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At present, the general disposal of garbage is harmless, and finally the rational use of the garbage disposal market will be sorted and then processed. Polluting garbage is usually burned and then buried.
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The garbage in life should be classified and treated, and the treatment process should be classified according to whether the material of the garbage is harmful, as well as whether it can be used and other factors, so as to realize the utilization of renewable resources and energy conservation and environmental protection.
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What do you do with your garbage? I think that garbage should be classified, and what should be classified should be classified, so I should be classified, remember that we will classify, so there are two boxes of garbage songs, one is a garbage bin, and the other is a classification box, so garbage classification must be clearly classified, in the same township, so garbage classification is the best.
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For garbage should be classified and disposed of, after all, it can be **garbage and non-**garbage, which can ensure the urban environment well.
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The garbage is now sorted separately. There are many kinds, such as garbage, household garbage, dry garbage, wet garbage, garbage, hazardous garbage, etc., according to the classification to put it in different garbage bins.
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Bi Shou Poor 1, landfill treatment, landfill is an effective method to absorb a large amount of municipal solid waste, but also the final treatment method of all garbage treatment process hand skin residues, at present, China generally adopts the direct landfill method. The so-called direct landfill method is to fill the garbage into the prepared pit and cover it with compaction, so that it undergoes biological, physical and chemical changes, decomposes organic matter, and achieves the purpose of reduction and harmlessness.
2. Incineration treatment, incineration method is a method to put 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. The incinerator can turn the garbage with a humidity of 7% into a dry solid for incineration when burning garbage, with an incineration efficiency of more than 95%, and at the same time, the high temperature on the surface of the incinerator can convert heat energy into steam, which can be used for heating, air conditioning equipment and steam turbine power generation.
3. Composting treatment, piling up domestic garbage into piles, keeping it warm to 70 storage, fermentation, and decomposing organic matter into inorganic nutrients with the help of the ability of microorganisms in garbage to decompose. After composting, household waste becomes hygienic, odorless humus. It not only solves the way out of garbage, but also achieves the purpose of recycling, but the amount of domestic garbage compost is large, the nutrient content is low, and long-term use is easy to cause soil compaction and groundwater quality deterioration, so the scale of composting is not easy to be too large.
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1. Curing technology treatment. Curing technology is a harmless treatment process that leads to the addition of cured substrates to waste, so that hazardous solid wastes are fixed or contained in inert curing substrates, and the treated cured products should have good permeability resistance, good mechanical properties, leaching resistance, dry and wet resistance, and freeze-thaw resistance.
According to the different curing substrates, curing treatment can be divided into sedimentation curing, asphalt curing, vitrification and colloidal curing.
2. Incineration and pyrolysis technology. The incineration method is a comprehensive treatment process of high-temperature decomposition and deep oxidation of solid waste, and the advantage is that a large number of harmful wastes are decomposed into harmless substances. However, the incineration method also has disadvantages, such as large investment, secondary pollution caused by smoke exhaust during the incineration process, and serious corrosion of equipment.
Pyrolysis is to heat organic matter at high temperature (500 1000) under anaerobic or anoxic conditions to decompose it into gas, liquid, and solid products, compared with the incineration method, the pyrolysis method is a more promising treatment method, and its most significant advantage is that the infrastructure investment is less.
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1. Landfill, landfill treatment needs to occupy a large amount 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. Composting, composting treatment should sort and classify garbage, and the organic content of garbage should be high. 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 matter and inorganic non-combustible matter under the conditions of high temperature and sufficient oxygen supply to form a stable solid residue. 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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1. Garbage disposal methods include ** utilization, sanitary landfill method, garbage incineration, composting, different types of garbage treatment methods, ** use of garbage metal, paper, and plastic products, etc., sanitary landfill method Qibu Prefecture for garbage that can not be exposed to the air, compost can be cheating fertilizer or soil amendment.
2. The incineration method is to combust the combustible components in the municipal solid waste and the oxygen in the air to make it become inorganic, and the incineration treatment can reduce the volume by 80% to 90%. In developed countries, the incineration method is generally used to deal with municipal solid waste, and the effect of this method is relatively good. The incineration method can reduce, harmless, and recycle urban solid waste, which greatly reduces the land occupancy rate.
The unit disposal cost of garbage is high, the incinerator and other equipment are complex, and the operating cost and plant construction cost are high; The incineration process produces carcinogen dioxin contaminants, which are extremely toxic and difficult to degrade due to their structure. In addition, waste incineration requires the waste to have a certain calorific value.
3. Landfill method, according to the China Statistical Yearbook, the proportion of landfill disposal in China is the largest (about 57%). The landfill method is the final treatment of garbage under anaerobic conditions, in which the garbage in the soil is decomposed by microorganisms to produce non-hazardous substances such as CH4 and CO2. Although the landfill method greatly saves the cost of building and operating the factory, the landfill method greatly occupies land resources; At the same time, the leachate, biogas and rancid odor brought by the treatment will bring environmental harm to the surrounding water, soil and atmosphere, and will affect the normal life and personal health of the surrounding residents to a certain extent.
With more and more countries paying attention to the problem of high environmental protection, European countries have strictly banned the direct landfilling of raw waste.
4. Composting method, the composting method is that microorganisms decompose the corrosive organic matter in the garbage and convert it into organic fertilizer. The advantage of the composting method is that the domestic waste is harmless and recycled, and the converted organic fertilizer can also be used as a soil amendment. However, in view of the treatment of municipal solid waste in China, due to the complex composition of garbage and the difficulty of sorting, the composting effect is poor and the quality of fertilizer is not high, and the heavy metal components in unsorted garbage will also produce secondary pollution.
Aerobic composting is a process in which organic matter in garbage is absorbed, oxidized and decomposed by aerobic bacteria under aerobic conditions. Due to its advantages such as high temperature and fast speed, it is mostly used in modern composting places.
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