How are waste plastic bags disposed of?

You can store it and then take it out when you need it in the future, for example, it can be used for garbage or some other items, and one bag can be used for multiple purposes, which helps to protect the environment.

1.Landfill method.

Waste plastics have a macromolecular structure and are not easy to decompose and decay for a long time after being discarded. The landfill method has a certain effect in the short term, but the landfill method is simple and negative, and the landfilled plastic waste does not see sunlight, does not withstand wind and rain, isolates the air, and is difficult to weather; Retention in the soil will destroy the air permeability of the soil, reduce the water storage capacity of the soil, and affect the growth of crops. Moreover, accumulation will hinder the dredging and infiltration of groundwater. Plastics are small in density, large in size, and do not decompose easily, quickly filling up the site, reducing the landfill's ability to process waste.

Landfill is not an ideal method for low resource utilization, which is not in line with the national sustainable development strategy.

Incineration method. : The direct incineration of waste plastics will cause serious secondary pollution to the environment. When plastic is incinerate, it produces not only large amounts of black smoke, but also dioxins, by far the most toxic of all.

Dioxins enter the soil and take at least 15 months to gradually decompose, which can harm plants and crops. Dioxins have a serious damaging effect on the liver and brain of animals. The pollution of the environment by dioxins emitted from incineration garbage has become an extremely sensitive issue of concern to the whole world.

3.Lysis method.

The cracking method is to decompose the resin polymer in the waste plastic products more thoroughly, so that it returns to the state of low molecular chain, and the use value of the decomposed product is high.

Used plastic bottles can be sorted and discarded as garbage, or they can be collected for reuse or sold. After the plastic bottles, the workers put the garbage mixed with various substances in the garbage station. Then, when the ** station is saturated with garbage, large trucks will be used to transport the garbage to the large garbage disposal equipment for strict sorting, and after this process, waste paper, glass, plastic, and metal will be separated.

The plastic bottle ** is crushed, granulated is usually said to be recycled, some are mixed in new plastic, dyed, in order to reduce costs, and others do some goods with low requirements.

Wherever there are people, there will be plastic waste. All kinds of plastic packaging, shopping bags, agricultural films, woven bags, beverage bottles, plastic basins, plastic pots, plastic buckets, toys, stationery, plastic shoes, vehicle bumpers, household appliance shells, computer shells, waste polychlorine tubes, industrial waste plastic products, plastic doors and windows, polyester products (polyester film, mineral water bottles, cola bottles, etc.) and waste materials in the process of plastic molding and processing, etc., can be seen everywhere, endlessly, never exhausted!

You can take it to the scrap station**, and dispose of the part that can't be treated as garbage.

Scrap plastics are best sold to those who buy and collect resources.

Generally, waste plastics can be classified and screened to improve the purity of waste plastics, increase their economic value, and also reduce environmental pollution.

Often waste plastics contain a lot of silica gel, rubber, adhesive paper and dust, which will greatly affect the waste plastics, first of all, you can use the silicone sorting machine to screen and purify, the silica gel sorting machine is a kind of equipment that uses elasticity and friction to separate some of the silicone rubber in the waste plastic. Pure physical sorting, there is no pressure on environmental protection, simple operation, one person can operate, once the machine is passed, silicone, rubber and other debris can be separated at the same time to get clean plastic.

Comparison of clean plastic and waste plastic after sorting.

Silicone sorter.

Sorting out clean waste plastics, at this time, you can also use a plastic electrostatic sorting machine to classify them, such as sorting out ABS PS submerged PP flame retardant PS, PET, PVC, PE, PA and other materials, which can better increase the value of waste plastics after classification and treatment.

The plastic electrostatic separator is a device that uses the electrostatic difference caused by the heating friction of different varieties of plastics to separate 2-5 different types of mixed plastics by electrostatic means, and is suitable for all kinds of mixed plastics that are difficult to separate by density flotation method. The purity of waste crushed plastic can reach more than 95% in a single separation, and the second and third sorting can be close to 99%, and the sorting speed is also fast, up to 1-3 tons of hours (the powder in the crushed material can not be too much).

Plastic electrostatic separator.

Waste plastics are sorted and purified and then classified and utilized, which greatly increases the economic value of plastics and reduces the impact of waste plastics on our environment.

Plastic bags can be garbage, whether plastic bags can be ** or depends on the transparency of the plastic bags themselves, not all plastic bags can. Classification of plastic bags: transparent plastic bags, such as commonly used fresh-keeping bags, are both plastic bags.

Non-plastic bag classification: Opaque plastic bags, such as color plastic bags used in the vegetable market, black garbage bags and other plastic bags with poor transparency and flexibility are plastic bags.

Plastics mainly include various plastic bags, plastic packaging, disposable plastic lunch boxes and tableware, toothbrushes, cups, mineral water bottles, etc. In addition, there is a green mark on the packaging, which is shaped like a triangle and belongs to the double system to be paid, which belongs to the ** garbage.

Disposable plastic bags are made of polyethylene and polyvinyl chloride as raw materials, some of which also contain plasticizers, phthalates and other environmental hormones, if exposed to high temperatures, they will have a chemical reaction, resulting in harmful substances to the human body, phthalates have a serious impact on human reproductive health and immune function. Moreover, it is difficult to remove residues or contaminants on discarded plastic bags, and it is not possible to contain excessive bacteria or carcinogens.

Plastic bags belong to the ** garbage. However, it should be noted that contaminated plastic bags, plastic wrap, disposable plastic tableware and plastic bags with poor transparency and flexibility do not belong to the first class of garbage, but belong to the category of dry garbage.

Clean plastic bags, plastic foam, packaging, etc. are all classified as plastics, which can be decomposed and reused. Therefore, as long as the plastic bag has not been contaminated, it is a garbage that can be degraded.

Contaminated plastic bags, plastic wrap, such as plastic bags that have been filled with toilet garbage or kitchen leftovers, are not considered garbage; In addition, black plastic bags with poor transparency and particularly thin plastic bags are not classified as garbage.

There are more and more plastic bags at home, and you don't know how to deal with them? This method teaches you to repurpose it.

Establish an awareness of environmental protection, do not discard the plastic bags generated in daily life, and use those that can be recycled. Intact plastic bags can be used as garbage bags. In this way, you can save the consumption of garbage bags, after all, many people have to buy garbage bags separately; The second is to achieve waste reuse.

Clean and intact plastic bags, which can be organized, folded, and placed in the locker, give priority to used plastic bags when the bags need to be used, recycle, and reduce the production of new plastic bags. Damaged and dirty plastic bags are not recommended to be used again, and should be put into the trash can correctly in accordance with the requirements of garbage classification.

1.When the garbage bag makes.

Anyway, I don't recommend incineration, because the gas from burning is harmful to the human body.

1. When garbage bags are used 2, sold as waste 3, when packaging bags are relatively backward due to China's current chemical waste disposal technology, there is no reasonable way, like China's current mainly incineration or landfill.

1. Recycled plastics.

After the waste plastic is manually screened and sorted, it also needs to go through the process of crushing, granulation, modification and other processes to become various transparent and opaque plastic particles, and then classified according to the quality, and finally become recycled plastic that can be reused.

2. Fuel. Waste plastics are used in blast furnace injection instead of coal, oil and coke, in cement rotary kilns instead of coal to burn cement, and in waste solid fuel (RDF) for power generation.

3. Power generation. Waste-to-solid fuel power generation was first applied in the United States, and there are 37 RDF power stations, accounting for the proportion of waste-to-energy power stations. Japan has realized the huge potential of waste plastic for power generation.

Japan has changed some small waste incineration stations to RDF production stations in combination with overhaul, so as to carry out continuous and efficient large-scale power generation after concentration, so that the steam parameters of waste-to-energy power stations have increased from 30012 to about 45012, and the power generation efficiency has increased from the original 15% to 20%-25%.

4. Oiling. Since plastic is a product of petrochemical industry, from the perspective of chemical structure, plastic is a high molecular weight hydrocarbon, while gasoline and diesel are low molecular weight hydrocarbons. Therefore, it is entirely possible to convert waste plastic into fuel...

5. Architectural applications.

The use of waste plastics and fly ash to manufacture building tiles on the cleaning requirements of waste plastics is not very strict, all kinds of waste plastics are different degrees of dirt, generally must be cleaned, otherwise it will affect product quality, is conducive to the actual operation in industrial applications, adding appropriate fillers to the plastic can reduce costs, reduce molding shrinkage, improve strength and hardness, improve heat resistance and dimensional stability.

From the economic and environmental point of view, the choice of fly ash, graphite and calcium carbonate as fillers is a better choice, the surface area of pulverized coal is very large, and the plastic has a good binding force with it, which can ensure that the tile has high strength and long service life.

6. Synthesis of new materials.

This synthetic material is mixed with asphalt in proportion and can be used to pave roads. Increase the hardness of the pavement. Reducing the appearance of crushing marks, it can also be made into thermal insulation materials and widely used in buildings.

According to reports, scientists use the new technology to process plastic waste into a new type of synthetic materials, experts believe that because the technology is plastic waste into new industrial raw materials, not only in environmental protection significance, but also to reduce the use of oil, natural gas and other primary energy, to achieve the effect of energy conservation.

1. Mechanical recycling.

Mechanically recycled e-waste plastics are suitable for mass production, with a stable source and collection points close to dismantling manufacturers, material processing and potential product users.

2. As a chemical raw material.

Plastics as chemical raw materials, including the use of mixed plastics as reducing agents in metal smelting processes, are suitable for the following situations:

There are fewer plastics and a wide variety of resins.

Difficulty in product classification and disassembly.

Plastics dealers, dealers and end-users are far away from each other, and the transportation costs of cross-regional recycling of plastics exceed the potential economic benefits of plastics.

3. It is processed as engineering fuel.

Processing plastics into engineering fuels is a small percentage, but it is commercially viable. This approach is highly dependent on close cooperation between the fuel manufacturer and the end user. The economic aspect depends on the fuel manufacturer's manufacturing costs, transportation costs, the selling price of alternative oil or other oils, and the cost of incineration.

4. Energy**.

Energy is defined as follows: the use of daily used plastic boxes without waste plastic products in the consumer country directly or as an accelerant for other fuels, through the use of resources that generate and heat energy. The main examples are the incineration of household waste to obtain steam, electricity and hot water; Other examples are the use of high calorific value components of refuse-derived fuels in cement kilns and coal-fired power plants as fossil fuel substitutes, in coal gasification, slag melting, and in metal** systems.

**When using waste plastics, sorting is difficult and not economically viable.

The vast majority of plastic waste cannot be degraded or recycled.

People use it together with other garbage in the depths of the garbage dump, or burn it on the spot, allowing toxic gases to be emitted and released.

Waste plastics will not only occupy a large amount of land with landfills, but also the occupied land will not be restored for a long time, affecting the sustainable use of land. If waste plastic products that enter household waste are landfilled, it will take 200 years for them to degrade.

I am a polymer learner, and BAI plastic materials can be divided into two categories: thermoplastic plastics and thermosetting plastic inner materials according to their different processing properties. The difference between thermosetting and thermoplastic is like that of ceramics and glass, one can not be melted after heating, and the other can be melted after heating, this characteristic makes thermoplastics can be simply reused, and recycled plastics are mainly thermoplastics, such as PVC, PMMA, PS, PA, PE, PP, ABS, POM, PC, PPO, PPS, etc.

The plastic bag itself can be reused, and many supermarket shopping bags are printed with a logo that can be used! **The difficulty of utilization is mainly due to factors such as economic benefits, and the utilization rate is low, and the merchant can be said to be unprofitable.

Most of the plastic bags you can see on the market today are non-degradable thermoplastics (degradable ones will not be reused!). ), can be reused. However, at present, the classification of domestic garbage is not clear (it is far from enough to use it and cannot be classified), low efficiency (plastic bag raw materials are cheap and easy to obtain, and the cost of recycling is high) and other factors make it difficult to regenerate, and most of them are mixed with domestic garbage to landfill or incinerate things.