Pollution theory: foam tableware is difficult to degrade and can cause "white pollution" and freon do harm to the ozone layer. In theory, a disposable foam plastic lunch box buried in a hundred years to be degraded will cause soil and groundwater pollution. And it can not be used in food-grade materials again after recycling, it just can be made into high-quality industrial raw materials. But because of the food box will be attached to the edible oil, and oil is not easy to clean, it is difficult to clean. This technical problem is not a breakthrough, lunch boxes can not be processed after recycling. Therefore, according to the current technology point of view, Styrofoam recycling is difficult.
The cooking agent of the lunch box is freon, and the pollution to the environment still exists. At present, although the use of butane as a blowing agent, compared with Freon, it is expensive, there may be illegal factories to use cheaper but harmful environment of the blowing agent.
Foam tableware first appeared on the train, due to the waste of plastic waste caused serious damage to the railway landscape, the Ministry of Railways announced the ban on the use of the railway station toilet tableware, and replaced by degradable tableware.
Recycling theory: new technology can re-use foam tableware Experts believe that the early PS foam tableware to Freon to make foaming agent, the ozone layer is harmful, but the current freon is butane alternative, will not cause damage to the atmosphere. To reduce the Styrofoam boxed to bring "white pollution", recycling is the key point.
Plastic foam boxes recycling such asStyrofoam recycling is very necessary to protect our environment. And then we can reuse it to do some other products.
With the increase in the Internet booking platform, take-away market competition become more and more intense, a large number of food packaging waste also be produced. Plastic, foam lunch boxes, plastic bags, disposable chopsticks and other "white garbage" were threw on the street, which cause the community's attention.
The one-time use of foaming lunch box, also known as the bubble lunch box, was introduced from Japan and Taiwan. It began to be used on the Chinese railway in 1986, and its sales have been compared because of its light weight, heat preservation, oil resistance, water resistance and low price.
Then, the one-time foam tableware with its low cost quickly become the standard street snack bar, but because of the lack of environmental awareness, the railway station, the construction site is free to discard the lunch box, which was caused the white pollution.
However, the one-time foam tableware showing an upward trend. 2005 data show that the annual sales of disposable tableware is 28 billion (including lunch boxes, noodles bowl, cup), lunch boxes with the amount of 12 billion, of which 3.4 billion environmental protection boxes, one-time foam lunch box 86 Billion only. In all parts of the country, disposable foam plastic tableware market share of more than 70%.
At present, there are two types of disposable lunch boxes: one is a colorless and transparent plastic lunch box called "polypropylene lunch box" (PP), each price in a few cents; the other is a foam meal box which named polystyrene lunch box (PS). For this reason, a one-time foam lunch box for a small snack bar has a great attraction.
The expanded polystyrene are disposable, which can easily become the white pollution, so EPS recycling is very necessary to protect our environment. We can recycle it through EPS compactor and then reuse it to do some other products.
Sea pollution is becoming an increasing problem for our planet and we have a responsibility to reduce sea pollution. I need to describe the problem. Our ship currently dumps all its rubbish into the sea.It's easy to result in huge endanger. First of all, Non-organic substances such as plastic bags kill fish and whales. Because fish get trapped and whales cannot digest them. Secondly some rubbish is inherently toxic.
I can suggest some solutions. First and foremost we can create a better system of disposing of rubbish for instance. We ought to store rubbish. Next, we are supposed to make ships environmentally and friendly. A case in point is that we should stop providing plastic bags. Several problems are caused by the non-organic substance. We ought not to pour wastes into the ocean, because it not only pollutes the ocean, but also lead to a series of harmful consequence. First and foremost, the non-organnic things, for instance, plastic bags, may kill fish and whales. Second, fishes can't digest them. Finally, some of the rubbish is inherently toxic, they will posion marine life.
We must take actions to protect our whale from dying. One thing we should do is creating a better system of disposing of rubbish. Another effective solution is making ships environmentally friendly. Sypermarkets shall stop the giving of plastic bags. As a captain of the ship, you should spare no efforts to think more helpful ideas and stop dumping rubbish from now on. On top of it, we also can recycle these plastic through EPS compactor, and then we can reuse them to other products. We all need to raise awareness of these problems. It now becomes necessary that we must act now, before it is too late!
It is reported that North America and Europe, the plastics industry has fought back the IKEA's action on phase on EPS material.
Swedish furniture retailer IKEA announced in its December 2016 Sustainability Report that it has eliminated EPS in the "flat pack" system. IKEA did not use EPS was because the EPS is made of fossil fuels, and in many occasions EPS recycling is very difficult.
IKEA said it would "replace it with a fibrous matrix and fully recyclable material," and is working with suppliers to eliminate EPS in packaging, which previously compromised in the supply chain.
"After four years of effort, we have eliminated the EPS foam in all IKEA flat packs, which will reduce the use of more than 8,000 tons of EPS foam per year - more than half of the size of the Empire Building." Said IKEA.
But the EPS Industry Alliance, based in the United States, and the European EPS Manufacturers' Association, based in Belgium, issued a statement that the role of the initiative was minimal, only in the "empty talk" sustainable development.
“IKEA relies on so-called environmental rhetoric to allow 8,000 metric tons of EPS to seem to reduce the amount of waste, but it does not make much sense, even if there is no valuable information on the use of paper substitutes to promote environmental protection. People are particularly disturbed.” The association said.
The two associations have pointed out that IKEA does not explain how this change is more conducive to sustainable development, or what benefits the paper substitutes can bring.
"IKEA does not provide any reference data on the proportion of EPS in its distribution chain, or what progress has been made in the packaging of fibrous substrates," the statement said.
So, the two associations disagree with IKEA's action.
The specification of light EPS foam beads are commonly 0.5-1.0mm, 0.6-1.2mm, 0.8-1.2mm, 0.8-1.6mm, 1.0-2.0mm, 2.0-4.0mm, 4.0-8.0mm, 10-20mm. EPS foam filter beads can be widely used in many aspects like filters, ion exchangers, non-valve filter, reverse osmosis, seawater desalination, urban water supply, drainage, and steel, pharmaceuticals, wine, beverages, purified water, Manganese, swimming pool, industrial wastewater and other fields. EPS foam filter beads filter can be completed through a three-step process in a container. EPS foam filter beads come from the import of polystyrene resin pellets made by the two high-temperature foam white spherical filter.
If it is covered in the upper part of the pressure integrated water purifier, when the turbidity of 500mg / L of raw water through the EPS foam filter beads filter particle filter, the water turbidity can be reduced to 5Mg / L, which can reach to the national drinking water standards. This kind of pressure water purifier, can accomplish the three process of the purification of water coagulation, clear and filter in a container. As a result of simplified process, equipment is reliable, you can directly supply the water to tower and the user. At present, the current domestic has been used for small and medium sized water equipment, and also for inland water supply system.
EPS foam filter media can be directly supply water to tower for small and medium-sized water treatment equipment, it can also be used for ship water treatment system. EPS foam plastic beads, is a light filter, the reactor density is 80-100kg / cm3, and the porosity is about 50%.
However, the expanded polystyrene are disposable, which can easily become the white pollution, so EPS recycling is very necessary to protect our environment. And then reuse it to do some other products.
The oceans are the largest body of water on earth, with millions of tons of plastic waste dumped into the ocean every year. According to the latest figures from the United Nations Environment Program, plastic production has increased by 20 times since 1964, reaching 0.3 billion in 2015, equivalent to 900 empire state buildings. Every year at least 8 million tons of plastic into the ocean, equivalent to every minute there is a garbage truck filled with plastic garbage into the ocean. According to the current consumption rate continues, by 2050 the earth will add 330 tons of plastic. Plastic gradually accumulated in the ocean, the world's marine floating plastic waste is estimated to be as high as 2 billion and 700 million, more than 250 thousand tons, the ocean has almost become a plastic world".
It is estimated that by 2050, the total weight of plastic in the ocean may exceed the sum of fish, 60%~90% of marine waste is plastic. For you and me, a plastic bag, a plastic bottle is not worth mentioning, but for the marine organisms may be lethal weapon, turtles, whales and sea birds will intake, illness or even death; the destruction of coral reefs and other important ecological habitats, chemical pollution; like the invasion of alien species, harmful effect of ecological system. Among them, the most shocking event is, once in the Pacific Midway Islands found tens of thousands of albatrosses died due to the ingestion of plastic waste.
Some of the plastic waste is easy to decompose, some is difficult to decompose. In the decomposition process, the plastic will release toxic substances, such as phthalic acid esters two, bisphenol A. At the same time, scientists have become increasingly aware that the change in the head of plastic may also be toxic, large plastic dismembered plastic debris, small plastic decomposition into small plastic, micro plastic in the crack into micro plastic. Gradually, as a new problem of marine pollution, marine micro plastic pollution has gradually become a new hot spot in the world.
Plastic can easily become the white pollution, so EPS recycling is very necessary to protect our environment. And then we can reuse it to do some other products.
Due to the impact of the Earth's plastic pollution, homeless hermit crabs can only live in the toothpaste cover to protect themselves. This group of shocking photos reveals the current global situation of plastic pollution and the huge threat to the marine life.
It is estimated that there are 8 million tons of garbage dumped into the ocean each year. If these rubbish are packed in garbage bags, five garbage bags will be placed on every foot of the earth.
The hermit crabs will generally look for shells used by other animals and use it as a sanctuary to protect their soft body from predators. But as the hermit crabs grow, it needs to find new homes, that is, other animal shells. But the growing pollution problem has brought crisis to the survival of hermit crabs.
Every year there are 8 million tons of plastic bottles, plastic bags or plastic toys are dumped into the sea. But because most of the garbage has been sinking into the sea, it is difficult to calculate the specific figures. But scientists say the real numbers may be as high as 12.7 million tons. NASA last month provided NASA a picture of the extent of marine pollution. Marine pollution has caused great damage to marine life - turtles will be plastic bags as jellyfish and eating, plastic bags will block their stomach, which led to turtle starvation and death; seabirds are often eating floating plastic bags, and human consumption of food bags of fish caught in the fish will be harmful to health.
According to the American Association for the Advancement of Science data, China is one of the countries with the most serious problem of plastic pollution. China has poured 3.5 million tons of waste per year into the sea, which is a quarter of the total. So, we should take actions to solve these problems, plastic recycling is a good way to solve the problems, so expanded polystyrene recycling is very necessary to protect our environment. And then we can reuse it to do some other products.
General purpose polystyrene, is based on styrene as a monomer through free radical polymerization or ionic polymerization obtained. Production methods are bulk polymerization, solution polymerization, suspension polymerization and emulsion polymerization. At present, the industrial production is mainly used in the suspension polymerization and bulk polymerization method. 1. The bulk polymerization method is that styrene monomer into the pre-reactor, and then add a small amount of additives and initiator, at 95 ~ 115 ℃ heating and stirring for pre-polymerization, to be converted to 20% to 35%, and then into the Continuous polymerization is carried out in a tower reactor with a stirrer. The polymerization temperature is increased to about 170 ° C to achieve complete conversion. A small amount of unreacted styrene is released from the top of the column and recycled. The polymer is continuously discharged from the bottom of the column and extruded into pellets to produce the finished product.
2. Suspension polymerization method Styrene-based monomer, water as a medium, gelatin or starch, polyvinyl alcohol, hydroxyethyl cellulose and other protective adhesive or magnesium carbonate, magnesium silicate, calcium phosphate and other insoluble inorganic salts are dispersed And maleic anhydride-styrene copolymer sodium salt as the dispersing agent, with benzoyl peroxide as the initiator, at about 85 ℃ to initiate polymerization. It is possible to carry out high-temperature polymerization at a high temperature of 100 ° C or higher in a high-pressure polymerization reactor without using an initiator. The polymer is washed, separated and dried to give a colorless and transparent bead-like resin.