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The best way to dispose of garbage is definitelyHarmless treatment.
The methods of harmless treatment of domestic garbage mainly include:
Direct landfill method. Landfill is an effective method for absorbing large quantities of municipal solid waste, and it is also the final treatment method for all waste treatment process residues.
High-temperature incineration method. 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. When garbage is incinerated, some harmful gases, organic matter, and slag are produced.
If they are discharged directly into the environment, they will also cause pollution, so it is necessary to send the waste to the incinerator for centralized treatment, and some household waste contains less organic matter, and coal and garbage can be mixed and incinerated in a certain proportion.
On the basis of incinerator incineration, electricity can be generated using the heat generated. Waste-to-energy incineration technology not only solves the environmental pollution caused by open burning of waste, but also effectively uses the energy contained in garbage, killing two birds with one stone.
Composting. The domestic garbage is piled up into piles, kept warm to 70 for storage, fermentation, and the decomposition of organic matter into inorganic nutrients with the help of the ability of microorganisms in the garbage to decompose.
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Question: Which method is the most reliable in garbage disposal?
In garbage disposal, garbage sorting and comprehensive utilization should be the most reliable.
1. Introduction to garbage sorting.
Waste sorting is the process of separating substances of different properties into categories. The purpose is to separate the usable part from the non-usable part, so as to facilitate the subsequent comprehensive utilization and disposal.
According to the nature and requirements of solid waste, the garbage sorting process system combines two or more sorting methods into an organic sorting process.
Common combination sorting processes are:
1.Screening (manual sorting, 3D sorter) coarse to fine, each level separated;
2.Winnowing is mainly used to separate paper, plastics and metals;
3.magnetic separation; Separation of metals**;
4.eddy currents; separation of non-magnetic non-ferrous metals;
5.Photoelectric separation, sorting of various colored glasses.
2. Comprehensive utilization.
1.The sorted building garbage can be made into silty and sand with different particle sizes, which are used for the production of aerated concrete bricks and wall masonry.
2.The sorted plastic can be mixed with wood flour to produce wood-plastic panels, which are used in the construction of landscape pavilions and plank roads, with a service life of up to 50 years. Reusable.
3.The separated glass, metal, waste paper, etc. can be recycled.
4.Food waste can be used to separate oils and fats to produce organic fertilizer.
In short, garbage sorting can not only separate fresh garbage, but also sort the garbage from old landfills, and can release a large amount of garbage piled up on the occupied land.
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1. The municipal solid waste treatment methods mainly include sanitary landfill, high-temperature composting and incineration, and the proportion of these three main waste treatment methods depends on the geographical environment; There are differences in the composition of garbage, the level of economic development and other factors.
2. Advantages and disadvantages of landfill garbage. Advantages of landfill: Sanitary landfill is the main way of centralized disposal of urban waste in China due to its mature technology and low treatment cost.
The disadvantages of landfill waste: less investment, simple process, large treatment capacity, and better realization of the harmlessness of the surface. However, the landfill garbage is not harmless, and a large number of bacteria and viruses remain; There are also hidden dangers such as biogas heavy metal pollution; The landfill leachate can also contaminate groundwater resources for a long time, so this method has the potential to be extremely harmful and has endless consequences for future generations.
3. Advantages and disadvantages of incineration of garbage. Advantages of incineration of garbage: fast processing, conversion of garbage into heat, and realization of local recycling of garbage.
Disadvantages of garbage incineration: The treatment of the harmful gas "dioxin" produced in the process of garbage combustion has caused great defects to this method.
4. Advantages and disadvantages of composting technology. The advantages of composting technology: some components of the waste are used as resources, and the investment in treating the same quality of waste is much lower than that of incineration alone.
Disadvantages of composting technology: it cannot treat non-perishable organic and inorganic matter, so the volume reduction, volume reduction and harmlessness are low. Therefore, composting alone still cannot completely solve the waste problem.
The sludge and other wastes discharged from the sewage treatment plant contain a large number of pathogens such as germs, viruses, and parasite eggs, which are very vigorous, and it is difficult to completely kill them by ordinary heating or lime sterilization methods. These solid wastes are applied as fertilizer to farmland, and some germs can survive in the soil for up to months, causing soil and water pollution that threatens the health of humans and livestock.
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Landfill is an effective method for absorbing a large amount of municipal solid waste, and it is also the final treatment method for all waste treatment process residues. 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.
The landfill treatment method is one of the most common garbage disposal methods, and its biggest feature is that the treatment cost is low and the method is simple, but it is easy to cause secondary pollution of groundwater resources. As the amount of municipal waste increases, there are fewer and fewer suitable landfill sites close to the city, and the development of long-distance landfill sites has greatly increased the cost of waste discharge, which is even unaffordable.
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1. Garbage recycling method: After the garbage is sorted, the substances that can be directly used are reused. 2. Garbage composting method:
Use organic waste and microorganisms in the soil to convert waste into organic fertilizer and improve the soil. 3. Garbage biodegradation method: use a variety of bacteria with multi-functional and high degradation ability to accelerate the decomposition of organic and inorganic substances in garbage.
4. Waste incineration power generation method: This method can not only thoroughly disinfect and eliminate pesticides, but also turn garbage into energy.
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One: Utilization, separate garbage and household garbage, use them as raw materials, produce plastic bottles for milk, juice, detergent, car oil, etc., and paper products are used to make cartons. Two:
Composting is to make the organic matter in the garbage undergo a biochemical reaction under the action of microorganisms, and finally form humus, which can be used as fertilizer or soil amendment.
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The most reliable way to dispose of garbage is landfilled, although the decomposition time is long, but it will not damage the environment and have no impact on others.
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Pro, garbage disposal, the most reliable is now or incineration treatment is the most reliable, both power generation and effective treatment, and then the classification must be good, so that the garbage can be effectively processed.
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There are many ways to dispose of garbage now, some are burned, and some are buried, but these will cause some damage to the environment, and the best way is to dispose of the garbage.
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Garbage sorting to make the best use of things.
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The best method for waste disposal depends on several factors, including the region's resources, state of technology, environmental conditions, and economic feasibility. Here are a few common ways to dispose of garbage:
1.Landfill: Burying garbage in an underground landfill. This is a traditional way of disposing of garbage, but it has certain negative effects on the environment, such as land occupation and potential groundwater pollution.
2.Incineration: By incinerating garbage at high temperatures, the volume of garbage is reduced and energy is generated. Incineration can reduce the volume of waste and produce energy, but it requires proper gas and ash treatment to reduce the environmental impact.
3.Recycling & Recycling: Reduce dependence on natural resources and reduce the amount of waste by sorting renewable resources such as paper, plastic, glass and metal from waste. It is a sustainable and environmentally friendly method of garbage disposal.
4.Anaerobic digestion: biogas and organic fertilizer are produced by placing organic waste in sealed containers for decomposition and fermentation. Anaerobic digestion is a method of renewable energy regeneration and organic waste treatment while reducing greenhouse gas emissions.
5.Manufacturing landfill mulch: Converts garbage into mulch material that is used to cover the waste layer of the landfill to reduce the landfill footprint.
The best way to dispose of waste may be a combination of treatment technologies, selected and combined according to the nature of the waste and local needs. It is important to adopt an integrated approach to waste management, including waste reduction, sorting**, recycling, and proper disposal, to minimise negative impacts on the environment. At the same time, businesses and individuals should work together to promote sustainable waste management and resource recycling.
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Classification**: Turning waste into treasure, **reuse, this is the best way to protect the environment.
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With the improvement of people's living standards, the amount of garbage generated is also increasing, and how to deal with garbage has become an urgent problem to be solved in today's society. Waste disposal involves environmental protection, resource utilization, public health or poor health and other fields, so an integrated approach is needed to deal with waste.
First of all, sorting is the basis of waste disposal. By dividing garbage into hazardous waste, kitchen waste and other garbage, we can maximize the use of resources and reduce environmental pollution. For the most important things, they can be collected and reused by means of stations, boxes, bags, etc.
Hazardous waste requires specialized collection and treatment facilities to avoid harm to the environment and human health. For kitchen waste, it can be composted or bio-fermented for farmland fertilization or bioenergy production. For other waste, it needs to be disposed of appropriately, such as incineration, landfill, etc.
Secondly, waste incineration and landfill are the main ways of waste disposal at present. Waste incineration can burn the organic matter and combustible matter in the garbage, and at the same time, through high-temperature combustion and flue gas treatment facilities, the harmful gases are purified and discharged, and heat energy is generated for power generation or heating. Landfill is the process of burying garbage in the ground to isolate oxygen, decomposing the waste into biogas and filling the soil.
However, waste incineration will produce a large amount of waste gas and carbon dioxide emissions, causing pollution to the environment; Landfills produce large amounts of biogas and leachate, which pollute soil and groundwater. Therefore, when these two treatment methods are adopted, it is necessary to be equipped with corresponding purification facilities and strengthen the treatment of waste gas and leachate.
In addition, the circular economy and the use of resources** are also important waste disposal methods. The circular economy emphasizes the recycling of resources, the conversion of waste into renewable resources, and the reduction of the consumption of natural resources through the reprocessing and utilization of renewable resources. Resource utilization includes the recycling of waste paper, scrap metal, waste plastics, etc., as well as the use of biological fermentation and bioconversion technology to energy and organic fertilizers.
Through the circular economy and the use of resources, waste can be effectively reduced and renewable resources can be maximized.
In summary, waste treatment requires an integrated approach, including sorting, waste incineration and landfill, circular economy, and resource utilization. Only through the combination of these methods can we minimize the generation of waste, protect the environment, and achieve sustainable development. Garbage disposal requires the joint efforts of all sectors of society, and enterprises and individuals should actively participate in building a clean and beautiful environment.
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Classify. Can be **garbage.
It mainly includes five categories: waste paper, plastic, glass, metal and cloth. Waste paper: mainly including newspapers, periodicals, books, various packaging paper, office paper, advertising paper, cartons, etc., but pay attention to paper towels and toilet paper due to the strong water solubility.
Plastics: mainly include all kinds of plastic bags, plastic packaging, disposable plastic lunch boxes and tableware, toothbrushes, cups, mineral water bottles, toothpaste skins, etc. Glass:
It mainly includes all kinds of glass bottles, broken glass pieces, mirrors, light bulbs, thermoses, etc. Metal objects: mainly including cans, cans, etc.
Fabrics: mainly include discarded clothes, tablecloths, face towels, school bags, shoes, etc. Through comprehensive treatment, pollution can be reduced and resources can be saved.
For example, 850 kilograms of paper can be made from 1 ton of waste paper, saving 300 kilograms of wood, and reducing pollution 74 than the same amount of production; 0 7 tons of secondary raw materials can be obtained for every 1 ton of plastic beverage bottles; Every 1 ton of scrap steel can be made 0 9 tons of steel, which saves 47 costs compared with ore smelting, reduces air pollution by 75, and reduces water pollution and solid waste by 97.
Kitchen garbage. Including leftovers, bones, roots, leaves, peels and other food wastes, composted by biotechnology on-site, each ton can produce 0 3 tons of organic fertilizer.
Hazardous waste. These include waste batteries, waste fluorescent tubes, waste water silver thermometers, expired medicines, etc., which require special and safe disposal.
Other garbage. Including bricks, ceramics, muck, toilet waste paper, paper towels and other difficult wastes in addition to the above-mentioned types of garbage, sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.
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