Replay plastics plastics recycling business plan executive summary. Resource recycling magazine, financial resources for recycling and waste management entrepreneurs, 1996. Recycling of plastics is considered the next viable and technically feasible option to tackle plastic waste. Recycling composite materials using liquid nitrogen. Most plastic recycling facilities use the following twostep process. Jun 25, 2019 the simplest of plastic recycling processes involves collecting, sorting, shredding, washing, melting, and pelletizing. This type of plastic recycling is gaining special demand in the united states, australia, and japan because of its ability to recycle all types of plastic at once. Plastic recycling refers to the process of recovering waste or scrap plastic and reprocessing the materials into functional and useful products. Nov 08, 2018 chemical recycling involves transforming a plastic s polymers into its smaller oligomers or monomers, which can then be converted into chemicals, fuels or virgin plastics. The plastic recycling enterprise needs quite a large storage space in order to store all collected waste items, processed materials and finessed products. Clean up and remediation activities, such as beach cleanups and technology to. Buckets, automobile parts, crates, tanks, pipes, bottles, carry bags, ropes, profiles. Replay plastics will open the first pet recycling plant on the west coast, turning. Although it is designed as an online resource, with links to all relevant information, a pdf of the complete document can be.
Mechanical recycling, very simply, consists of melting down the old plastic and using it to make new products. Practically, however, plastic waste poses a problem because it needs to be sorted before recycling. For example, rigid containers consisting of a single polymer are simpler and more economic to recycle than multilayer and multicomponent packages. Mechanical methods of recycling plastic plasticisrubbish. Buckets, automobile parts, crates, tanks, pipes, bottles, carry bags, ropes, profiles etc. Many stores have reusable bags for sale at the register, and some stores. Compared to glass or metallic materials, plastic poses unique challenges because of the massive number of types of plastic, they each carry a resin identification. Although both of these are linked to mechanical recycling of plastic and used for recycling of psw by mechanical means. Primary recycling can also involve the reextrusion of postconsumer plastics. While plastic is one of the most collected materials, it is also one of the hardest compounds to break down and use effectively. Plastic recycling is the process of recovering scrap or waste plastic and reprocessing the material into useful products. The project is laid out basically under 4 main branches of a. The approach utilizes several technologies to produce a second supply chain of raw materials. Plastic processing technique plastic processing can be defined as the process of converting the plastics raw material into semifinished products.
Recycling basics recycling is the process of collecting and processing materials that would otherwise be thrown away as trash and turning them into new products. This activity is known as the plastic recycling process. Ewaste recycling technologies 20 patent landscape reports project in cooperation with for more information contact wipo at. Polypropylene to make butter tubs, bottle tops, carpets and food wraps plastics recycling process sort and clean different plastic groups melt plastic into bales break bales up and grind into small flakes wash, rinse and dry flakes in hot air color maybe added or maybe run through a pelletizer advantages of recycling waste reduction. According to the epa, recycling one million laptops can save the energy equivalent of electricity that can run 3,657 u. With each step the value of the waste material increases, as the value of waste plastic as a secondary resource depends on its purity and composition. It provides a summary of the quantities and type of plastics in the waste stream and also the main effects of recycling on the plastic material itself. Processes with the aim to use recycled plastic for food packaging were first developed.
Some of the most frequently used techniques and methods are infrared spectroscopy, electrostatics, fluorescence and the xray process. The polymers polyvinylchloride pvc and polyethylene terephthalate pet must be separated because cross. New materials with interesting properties were obtained by compounding these samples with wood flower and virgin polymers. Practical action, the schumacher centre for technology and development. Practice good housekeeping techniques to reduce spills and leaks. This fact becomes very clear when you think about the different plastic recycling codes. Sorting plastics automatically or with a manual sort to. Primary and secondary recycling techniques are well established and widely applied techniques. Pdf project proposal for postconsumer plastic recycling. Among the many processes of recycling plastic waste, the following two are the most popular in the industry. However, at every stage of the plastic life cycle, there remain a large number of impediments to the development of recycling.
Recycling this material is very easy and the process can easily be carried out at home. Since the majority of plastic is nonbiodegradable, recycling is a part of global efforts to reduce plastic in the waste stream, especially the approximately 8 million metric tonnes of waste plastic that enters the earths ocean every year. The problem with plastic lies not in how it is used, which is generally harmless, but in endoflife management of products made from it. Since the duration of life of plastic wastes is very small roughly 40% have duration of life smaller than one month, there is a vast waste stream approximately 21.
Compared to glass or metallic materials, plastic poses unique challenges because of the massive number of types of plastic, they each carry a resin identification code, and must be sorted before they can be recycled. The worlds first sensor capable of identifying six different plastic materials. Plastic recycling is the process of reprocessing plastic that already has been used before and giving it some new reusable form. Recycling can benefit your community and the environment. Paper with residues cannot be recycled in most cases. Chemical recycling routes are generally divided into thermochemical or catalytic conversion processes, but can involve their combination. Plastics, glass or rubber january 1998 association of small business development centers. Recycling and recovery routes of plastic solid waste psw. Indias rate of recycling of plastic waste is the highest 60% in the world as compared to other countries. Recycling and reuse of resources plastics pata sustainability. Since 1950, close to half of all plastic has ended up in landfill or dumped in the wild, and only 9% of used. Analysis of plastic waste production and recycling methods.
This is important not only from the environmental point of view less landfill space is needed but also from the economic point of view because recycling allows energy and materials to be reused. Currently, most of the psw being recycled is of process scrap from industry recycled via primary recycling techniques. Plastic recycling is the process of recovering scrap or waste plastics and reprocessing the material into useful products. Methods of plastic recycling and new innovative processes. So now let us discuss some efficient techniques of recycling the plastic products. Some dyes used in creating plastic products can be contaminated, causing entire batches of potential recycling material to be scrapped. Processes and equipment required for plastic recycling figure 1 gives an overview of processes which can take place in a plastic recycling plant. Recycling ewaste enables us to recover various valuable metals and other materials from electronics, saving natural resources energy, reducing pollution, conserving landfill space, and creating jobs. Recycling composite materials using by svetlana ivanova and oscar beteta, air products.
This book discusses some of the stateoftheart techniques of recycling postconsumer plastic materials and. The economic benefits of recycling and waste reduction wastewise case studies from 7 case study township of south brunswick, nj the township of south brunswick, which is located in central new jersey in middlesex county, has always been very progressive in terms of recycling and thus has had a successful municipal recycling. Recycling of plastics least desirable management strategy. The energy and resources institute challenges and opportunities. In the uk, process scrap represents 250,000 tonnes of the plastic waste and approximately 95% of it is primary recycled parfitt, 2002. The economic benefits of recycling and waste reduction. Methods of recycling, properties and applications of recycled. Just because an item is made from plastic, or contains plastic parts, doesnt mean recycling facilities can handle it. Plastic recycling and the plastic recycling process. However, in practice, some combinations of polymers and metals have proven to be difficult to separate even at liquid nitrogen temperatures.
Much of this waste consisted of plastics, which build up in landfills and flow into oceans through storm drains and watersheds 2, breaking up into little pieces and absorbing contaminants. The steps followed in the plastic recycling are enumerated below. The natural degradation of plastic begins with photodegradation due to the uv light from the sun. Management of pet plastic bottles waste through recycling in. Chemical recycling involves transforming a plastics polymers into its smaller oligomers or monomers, which can then be converted into chemicals, fuels or virgin plastics. Plastic wastes management, control, recycling and disposal.
Mechanical recycling can only be done a few times before the polymers break down and the quality of the plastic degrades. Jun 27, 20 plastic recycling is the process of reprocessing plastic that already has been used before and giving it some new reusable form. Secondary recycling is transformation of material by mechanical mean for less demanding products. Methods of recycling, properties and applications of. Mixed recycling sometimes referred to as co mingling is a collection method. Plastic waste items, especially bottles, have a large volume and therefore a large storage place is necessary.
Plastic waste management, a matter for the community. The water used for the purification of chemical barrels will be reused after undergoing a purification process via water treatment plants. Bring your own shopping bags instead of using plastic bags. This is another very efficient way of recycling the plastic products. So, unlike glass for instance, you cannot necessarily use mechanically recycled polymers to remake the same. Another issue is that producing recycled plastic does not reduce the need for virgin plastic. Tips for recycling plastic recycling best practices.
If you dont have shopping bags, use paper bags instead of plastic because they decompose faster. Processes, stages, and benefits of plastic recycling 0 flares twitter 0 facebook 0 pin it share 0 email stumbleupon 0 reddit 0 filament. Plastic materials can be recycled in a variety of ways and the ease of recycling varies among polymer type, package design and product type. The plastic recycling process is fraught with flaws. Technically sophisticated, lightweight and cheap, plastics suit a broad spectrum of uses. Recycling techniques of polyolefins from plastic wastes 115 2007, association of plastic manufacturers, 2007.
Recycling 2017, 2, 24 3 of 11 the plastic can be degraded in the environment by four mechanisms. This method is generally used for disposing off the waste materials that are in bulk. By combining idecs worldrenowned technology and osaka universitys photonics. This guide pays more attention to plastic than to glass or rubber, because for various reasons, it is the most complex of the three. With space available for landfill continually shrinking, recycling is, theoretically, one of the most attractive alternatives. Im mad keen on recycling because im worried about the next generation and where all this waste were producing is going. Author links open overlay panel narinder singh a david hui b rupinder singh a i. Introduction municipal solid waste in india contain 14 per cent by weight of plastic waste. Lets take the various methods of plastic recycling for example. Recovery of secondary raw materials through recycling is given the highest priority after reuse, according to the waste hierarchy.
Analysis of plastic waste production and recycling methods executive summary in 2010 alone, the u. Overview of selected plastic processing techniques. Jun 30, 2010 these recycling tips will help you recycle more of the plastic packaging you use at home, from plastic bags and bottles to plastic lids, cups and wraps. As with any type of action, there is usually more than one way to achieve a wished goal. Optimized sorting may be achieved by applying a variety of these techniques in series. Many grocery stores collect plastic bags, and some city recycling programs offer plastic bag. Processing the categorized plastic waste, accordingly into various raw.
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