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The garbage mainly includes 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, etc. Glass:
It mainly includes all kinds of glass bottles, broken glass pieces, mirrors, light bulbs, thermoses, etc. Metal objects: mainly including cans, canning boxes, toothpaste skins, etc.
Fabrics: mainly include discarded clothes, tablecloths, face towels, school bags, shoes, etc. 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 is 47 cost savings compared with ore smelting, and reduces hazardous garbage including waste batteries, waste fluorescent tubes, waste water silver thermometers, expired medicines, etc., which require special safety treatment.
Other garbage includes bricks, ceramics, muck, toilet waste paper and other difficult wastes in addition to the above types of garbage, and the use of sanitary landfill can effectively reduce the pollution of groundwater, surface water, soil and air.
Garbage is a misplaced treasure. Garbage not only beautifies the environment, but also garbage reuse can save the extraction of new resources, thereby radically reducing waste. To participate in environmental protection, let's start from the small things around us, starting from the correct disposal of garbage.
75 percent air pollution, 97 percent reduction in water pollution and solid waste.
Kitchen waste includes food waste such as leftovers, bones, roots and leaves, which can be composted by biotechnology on-site, and can produce 0 3 tons of organic fertilizer per ton.
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Combustible has paper. There are many plastics, renewable ones, vegetable leaves and peels can be made into fertilizer, newspapers, scrap iron, waste electrical shells and the contents inside are metal, which can be recycled.
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Garbage: refers to the waste containing organic matter in domestic waste. Mainly paper, fiber, bamboo, wood, etc.
Non-** garbage: common garbage that is easy to decompose under natural conditions, such as skin, vegetable leaves, leftovers, flowers, branches, leaves, etc., including cigarette butts, cinders, construction waste, paint pigments, food residues and other things that do not have much use value after being discarded.
Toxic and hazardous waste: Toxic and hazardous waste refers to waste that contains heavy metals, toxic substances or actual or potential harm to the environment that are harmful to human health. Examples: Waste batteries, waste fluorescent tubes, mercury thermometers, waste paint, expired medicines, incinerated materials, etc.
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Can be **garbage.
Paper: Text paper, packaging paper and other paper products that have not been seriously tarnished.
Such as newspapers, various packaging papers, office paper, advertising papers, cartons, etc.; Plastics: plastic products such as waste container plastics, packaging plastics, etc. For example, all kinds of plastic bags, plastic bottles, styrofoam, disposable plastic lunch boxes and tableware, hard plastics, etc.; Metal:
Various categories of scrap metal items. Such as cans, tin cans, lead toothpaste skins, waste batteries, etc.; Glass: colored and colorless waste glass products; Fabric:
Used textile clothing and textile products.
Do not **garbage.
Non-garbage refers to garbage other than garbage, common garbage that is easy to decompose under natural conditions, such as skin, vegetable leaves, leftovers, flowers, branches, leaves, etc., including cigarette butts, cinders, construction waste, paint pigments, food residues and other items that do not have much use value after being discarded.
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Garbage: such as: waste glass, plastic, metal, paper, books and newspapers, wood waste cloth, waste oil, etc. Fabrics: used textile clothing and textile products, discarded clothes, tablecloths, face towels, school bags, etc.
Non-amissible garbage includes cigarette butts, fruit peels, vegetable leaves, chicken feathers, cinders, construction waste, paint pigments, food residues, etc.
Like waste batteries, fluorescent tubes, mercury thermometers, paint canisters, medicines, cosmetics, etc. These are toxic wastes that require special treatment.
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The main resources in life are: (1) waste paper. Newspapers, books, paper, packaging paper, office paper, advertising paper, cartons, etc.; (2) Plastics.
All kinds of plastic bags, plastic foam, plastic packaging, disposable plastic lunch boxes and tableware, hard plastics, material toothbrushes, plastic cups, mineral water bottles, etc.; (3) Glass. glass bottles and broken glass pieces, mirrors, light bulbs, thermoses, etc.; (4) Metals. cans, tin cans, toothpaste skins, etc.; (5) Fabric:
It mainly includes discarded clothes, tablecloths, towels, cloth bags, etc.
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The toxic and harmful garbage in daily life is the battery, and the garbage is the leftover from cooking. Ordinary plastic waste paper can be used**.
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What can be reused belongs to the first garbage, and the toxic ones are those that have radiation and are harmful to the human body.
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You can just check this aspect.
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Well, if you look at what can be processed, you can do it, and if you can't, you can't.
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(1) The total number of garbage is: 630, then the proportion of garbage is: 420 100% = 25%, and the number of other garbage is:
1680, hazardous waste is: 1680-420-630-189=441, and the percentage is: 441
2) **Garbage, kitchen waste, hazardous garbage and other garbage corresponding garbage cans are represented by A, B, C, D respectively, and garbage is represented by A, B, C, D respectively
There are 24 cases, and there are 9 cases where all four bags of garbage are thrown wrong, then p (all four bags of garbage are thrown wrong) = 9
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Generally, it can be divided into ordinary garbage, food waste, construction waste and cleaning waste.
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There should be: 1. Particulate matter PM10,
2. Fine particulate matter.
3. Total suspended particulate matter TSP;
4. Carbon monoxide CO, 5. Nitrogen oxide NOx
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Nitrogen oxides, carbon dioxide, dioxins, fly ash.
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There are two ways to incinerate garbage at high temperature in cement kilns: one is sorting and incineration, that is, the domestic garbage is pretreated first, the combustibles and non-combustibles are separated, and then they are added to the cement kiln as alternative fuels or alternative raw materials for disposal; The other is indirect incineration - that is, the domestic waste is directly incinerated in a separate incinerator without sorting, and the ash and flue gas are introduced into the cement kiln system for use after incineration.
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Commonly used domestic waste disposal methods are: sanitary landfill, composting, incineration and comprehensive utilization.
1) Sanitary landfill: take measures such as anti-seepage, paving, compaction, and covering to treat municipal solid waste and treat gas, leachate, flies, etc. (At present, more than 60% of the world's domestic waste is treated by sanitary landfill.) The aim is to be harmless.
2) Composting treatment: It is a biochemical method that relies on bacteria, actinomycetes, fungi and other microorganisms widely distributed in nature to promote the transformation of biodegradable organic matter into stable humus in a controlled manner. Composting can make domestic waste harmless, reduced and recycled.
3) Incineration treatment: the process of chemical reaction between the combustibles in the domestic waste and the oxygen in the air under high temperature conditions, releasing heat, generating exhaust gas and discharging ash. Its purpose is to make domestic waste non-quantification and reduction.
4) Comprehensive treatment: It is to overcome the shortcomings of a single treatment method on the basis of a combination of two or more methods of treatment, so as to avoid and reduce the secondary pollution and waste of resources caused by improper treatment of environmental protection, and at the same time achieve the three modernizations.
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Domestic garbage combustibles: old clothes, shoes, plastic bags, old quilts, broken socks, raw and cooked food packaging, plastic bottles, toilet paper, foam, express boxes, disposable lunch boxes, paper cups, children's plastic toys, woven bags, dead branches and leaves including sanitation garbage mixture, etc., as well as some dry kitchen waste, melon peels, fruits and vegetables, mixtures. I can't count them, and it doesn't feel realistic for me to bother sorting this mixture.
Low temperature pyrolysis equipment for domestic waste.
The only way, the city to build a large-scale waste incineration plant, the countryside on the use of low-temperature domestic waste pyrolysis equipment, in fact, centralized treatment will produce concentrated pollution, dispersed but controllable and clean, low-temperature pyrolysis technology has been very perfect, to the village as a unit of local reduction is suitable for the modern rural beautiful construction category.
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The efficiency of waste-to-energy combustion is generally not high, generally only about 20%.
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1) Broken glass and dry batteries cannot be burned and must be removed before combustion;
2) Direct stacking or landfilling will pollute the soil and waste land resources; After power generation, it not only saves land resources, but also makes use of waste;
3) To know the meaning of the ** logo;
4) The main component of biogas is methane, the reactants are methane and oxygen, and the products are carbon dioxide and water, which can be leveled by odd-even method
So the answer is: (1) ac
2) Saving land resources; waste utilization, etc.
3)b4)ch4
2O2 ignited.
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