What is the utilization value of waste plastics, and how to dispose of waste plastics?

I don't know anything else except buying and selling.

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.

Yes, but the performance is very different from the original properties of the material, and it cannot be used as the original material functional material.

Plastics**. Chinese name plastic**.

Foreign name plastic recycling

Classification of plastic films, plastic filaments and woven products.

**Recycled material should be applied.

It can be degraded and decomposed in sunlight.

Overview. As the consumption of plastic products continues to increase, the amount of waste plastics is also increasing. At present, China's waste plastics are mainly plastic films, plastic yarns and woven products, foam plastics, plastic packaging boxes and containers, daily plastic products, plastic bags and agricultural mulch films.

In addition, China's annual consumption of automotive plastics has reached 400,000 tons, and the annual consumption of plastics for electronic appliances and household appliances has reached more than 1 million tons. It is understood that in 2004, domestic waste plastics have reached about 11 million tons. If the storage, transportation, and processing of these waste plastics are not properly applied and post-processed, they will inevitably damage the environment and endanger people's health.

Hello, I have been engaged in the production of plastic films for many years, and I am suitable for it.

Plastics are strictly speaking, but the performance is very different from the original properties of the material, and it cannot be used as the original material functional material. But! Plastic not only consumes huge manpower and financial resources, but the most important thing is that it makes no sense to be made into plastic in various shapes and appearances!

But taking the plastic film I am engaged in as an example, I have developed a plastic film that can be used in a variety of food packaging, so that the plastic packaging that is littered everywhere can also be used!

Hope, thank you.

Plastics can be reused, and here are the classification labels for plastics:

PET (polyethylene terephthalate): commonly found in plastic bottles.

HDPE (high-density polyethylene): commonly found in milk bottles, supermarket plastic bags.

PVC (polyvinyl chloride): commonly found in raincoats and plastic wrap.

LDPE (Low Density Polyethylene): Commonly found in the tube packaging of toothpaste.

PP (polypropylene): commonly found in bottle caps, straws, microwave food boxes.

PS (polystyrene): commonly found in disposable lunch boxes.

other: Plastics that do not belong to the above 6 types.

Yes, plastics are organic polymer materials.

Dry waste products must know how to learn.

Decomposed plastics can be decomposed in sunlight. Starch is also added to plastics to make it easier to biodecompose, but the decomposition is still incomplete. Some people have even used genetically modified bacteria to produce fully biodegradable plastics, but the cost is still high.

BASF AG (BASF) has developed a biodegradable plastic called EcoFlex for use in food packaging. The above degradable plastics are rarely used due to their cost. The plastic must be exposed to air to decompose, so if it is buried, it can still cause a problem of solid waste.

Recycled plastics are different forms of plastics that exist according to the fact that they still have the best utilization value after the end of their service life, and almost all thermoplastics have the best utilization value. Recycled plastics are produced in the production process of synthetic resins, in the production and processing of plastic products and semi-finished products, in the plastic logistics process and after consumer use. Generally, the products produced in the process of synthesis and processing are called pre-consumer plastics; The products produced after circulation, consumption, and use are called post-consumer plastics.

The amount of plastic produced before consumption is small, the quality is stable, and the recycling value is large, so it is generally properly disposed of in the production process and can be fully reused.

Blast furnace injection waste plastic technology is also a new method of treating waste plastics by using the high calorific value of waste plastics as raw materials to make suitable particle size and spray into blast furnaces to replace coke or pulverized coal. The application of waste plastics in foreign blast furnaces shows that the utilization rate of waste plastics is 80%, the emissions are incineration, the harmful gases produced are less, and the treatment cost is low. The blast furnace injection waste plastic technology has opened up a new way for the comprehensive utilization of waste plastics and the treatment of "white pollution", and also provided a new means for metallurgical enterprises to save energy and increase efficiency.

Germany and Japan have been successfully used since 1995. 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.

In combination with the overhaul, Japan has changed some small garbage incineration stations into RDF production stations, so as to carry out continuous and high-efficiency large-scale power generation after concentration, so that the steam parameters of the 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%.

More than 700 liters of unleaded gasoline and diesel can be consumed from 1 ton of waste plastic by repurposing waste plastics into gasoline and diesel. One ton of waste plastic can be refined into 600 kilograms of gasoline and diesel, which saves resources to a large extent. The use of high-quality plastics for production can effectively enhance the competitiveness of industrial producers from both economic and environmental protection levels, and compared with new plastics, the use of high-quality plastics as raw materials for production can reduce energy consumption by 80% to 90%.

1. The environmental and economic value brought by PVC**:

Approximately 120 kg of CO2 will be generated from the collection and mechanization of 1 tonne of waste PVC, which can be used in products directly instead of the original materials. Environmental data from Plastics Europe shows that the production of 1 tonne of pure PVC material from raw materials (salts and oil) will produce 1,900 kg of CO2. In this way, the use of recycled materials will save 94% of CO2 emissions compared to using pure raw materials.

2. Recycled polyester has huge environmental advantages over virgin polyester

According to the EPA report, the production of recycled polysilva ester requires only 1 3 energy from virgin sources, reducing 2 3 sulfur dioxide and 50 nitrogen dioxide emissions, reducing water consumption by 10 times, reducing carbon emissions by a factor of two, and avoiding landfills of the same plastics.

The recycling of plastics not only saves social resources, but also saves production costs.

Sell scrap and go to the scrap house, I'll come to your problem].

After the waste plastic is manually screened and sorted, it also goes 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 becomes a recycled material that can be reused.

1) Melt regeneration.

Melt recycling is a method of reheating and plasticizing waste plastics for recycling. From the waste plastics, this method can be divided into two categories: one is the cleaning of waste plastics by resin factories and processing plants; The second is the regeneration of various plastic products mixed together after use. The former is called simple recycling, which can produce plastic products with better performance; The latter is called compound recycling, which can generally only prepare plastic products with relatively poor performance requirements, and the recycling process is more complicated.

2) Pyrolysis.

The pyrolysis method is a method of pyrolysis of selected waste plastics to prepare combustion oil and fuel gas.

3) Energy**.

Energy** is a method of harnessing the heat generated when waste plastic is burned.

4) **Chemical raw materials.

Some varieties of plastics, with the addition of polyurethane, can be hydrolyzed to obtain the raw material monomer for synthesis. This is a method of using chemical decomposition of waste plastics into chemical raw materials.

5) Other methods.

In addition to the above-mentioned methods of waste plastics, there are also various methods of using waste plastics, such as mixing waste Styrofoam into the soil after crushing to improve the water retention, aeration and drainage of the soil, or mixing it with cement as a filler to make lightweight concrete, or adding adhesive to press into mat materials, etc.

1. Build roads

On April 22, the 52nd World Earth Day, China's first waste plastic recycling and environmental protection road was officially completed and unveiled at the Xuhui Campus of East China University of Science and Technology in Shanghai. The innovative approach not only reduces the generation of environmental waste by "turning waste into roads", but also provides better pavement performance and durability than conventional pure asphalt pavement.

2. Leakage branches in front of food packaging containers

On November 24, 2020, the commencement ceremony of the Yingchuang Huizhi food-grade recycled polyester chip factory under Beijing Yingchuang Renewable Resources ****** (hereinafter referred to as "Yingchuang") was held in Baodi Economic Development Zone, Tianjin. The official start of the "Yingchuang Huizhi Factory" covers an area of 50 acres, and the factory will realize the processing process from domestic beverage bottles to food-grade recycled polyester chips after the completion of the factory.

3. Wood-plastic type wood

Hainan Kunlun New Material Technology Co., Ltd. will be the first plastic "waste into treasure", transformed into all kinds of wood plastic products, according to estimates, every 1 cubic meter of wood plastic materials produced, equivalent to saving 8 barrels of oil, 11 tons of standard coal, reducing wood felling, reducing tons of carbon dioxide.

4. Parade red Huimin blanket

On October 1, 2019, a military parade to celebrate the 70th anniversary of the founding of the People's Republic of China was held in Beijing. At the scene, the red carpet of 10,000 square meters laid on the exterior stage of Tiansouzhan Square is very eye-catching. It is reported that the "national flag red" carpet is manufactured by a company in Yangxin County, Shandong, which is made of first-class waste mineral water bottles as raw materials, with flame retardant, anti-fouling, and anti-ultraviolet functions, and a total of more than 40 million waste mineral water bottles, about 10 tons.

5. Sunglasses, computers and printers and other products

According to a tripartite cooperation agreement signed by Covestro, Nongfu Spring will be responsible for the scrapped 19-liter buckets and will give them to another partner, Shanghai Auxerre Material Technology (hereinafter referred to as Auxerre). The 19-litre plastic drums made of polycarbonate have an average lifespan of about one year. Every year, about 1 million buckets of these specifications meet the end-of-life standard.