Sofia Martinez
Plastic is everywhere, and it's creating a lot of waste. Plastic pollution is a major issue, especially in our oceans, and it's harming animals and the environment. That's why it's so important to recycle plastic and reduce our use of single-use plastics like plastic bags, bottles, and food packaging. Recycling plastic means it can be reused and turned into something new, which helps protect the planet. So, how exactly is plastic recycled? Well, first, it's collected from our homes, schools, and local recycling centres. Then, it's sorted by type and colour, either by hand or using special machines. After that, it's washed, shredded, and melted down into little pellets, which are then used to make new products. Recycling plastic is a great way to give plastic a new life and stop it from ending up in landfills or the ocean.
| Characteristics | Values |
|---|---|
| Plastic pollution | One of the major issues affecting the ocean |
| Impact of litter on marine life | Harms animals and wildlife in rivers, lakes, and oceans |
| 3 Rs | Reduce, Recycle, Reuse |
| Plastic waste | Plastic bags, bottles, straws, crisp packets, food wrapping, drinks bottles, etc. |
| Plastic recycling | Collected by local authorities, sorted, washed, shredded, melted, and extruded into new recycled plastic pellets |
| Plastic resin codes | Numbers ranging from 1 to 7, indicating the type of plastic |
| Recyclability | Depends on how plastic is made; thermoplastics can be re-melted and re-molded, while thermoset plastics cannot be recycled |
| Eco-friendly disposal solutions | Not all plastic is widely recyclable, and incineration releases harmful gases |
| Benefits of recycling plastic | Conserves natural resources and energy, reduces landfill space and pollution |
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What You'll Learn
Why recycling plastic is critical to improving the environment
Plastic is one of the most popular and useful materials of modern times. We produce 300 million tonnes of plastic each year, and it is cheap to make and profitable. However, plastic waste is a key concern for environmentalists, governments, and organisations as the vast majority of plastics are disposed of in non-environmentally friendly ways. As a result, recycling plastic is critical to improving the environment and bettering waste management solutions.
Firstly, plastic takes a long time to biodegrade, between 500-1000 years for some types. This means that plastic takes up landfill space and pollutes the environment for longer. For example, a plastic bag can take hundreds of years to decompose. If plastic ends up in rivers, lakes, and oceans, it can harm wildlife, as animals can get tangled in it or mistake it for food. Eight million tonnes of plastic enter the world's oceans each year, and plastic items follow ocean currents, forming huge floating rubbish patches.
Secondly, recycling plastic can conserve limited natural resources and energy. As plastic is made from oil, recycling it means that less needs to be made from raw materials, and more oil is conserved. Recycling plastic also helps to reduce the amount of waste that goes to landfill sites. These sites are places where rubbish is buried and left to biodegrade, but the planet will eventually run out of landfill space.
Finally, recycling can help to reduce plastic pollution, which has been described as "ubiquitous". Plastic waste has been found in the ocean, in snow and rainfall, in the air, and in human blood, colons, lungs, veins, breast milk, placentas, and fetuses. One paper estimated that the average person consumes five grams of plastic every week, mostly from water.
Overall, recycling plastic is critical to improving the environment as it helps to reduce plastic pollution, conserve natural resources, and reduce the amount of waste that goes to landfill.
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The recycling process: collection, sorting, reprocessing
The recycling process can be broken down into three main stages: collection, sorting, and reprocessing.
Collection
The first stage of the recycling process involves collecting plastic waste from homes, businesses, and schools. Local authorities or waste management contractors are usually responsible for collecting the recycling. The plastic waste is then taken to a Material Recovery Facility (MRF) or a Plastic Recovery Facility (PRF). These facilities are essential for the recycling system to operate effectively, as they allow for the sorting and processing of large amounts of plastic.
Sorting
The second stage of the process involves sorting plastic from other materials and separating different types of plastic. This can be done manually or using automated processes, such as optical sorters, which can distinguish between different types of plastic. Sorting is crucial as it ensures that only recyclable materials are processed and that they are processed correctly.
Reprocessing
Once the plastic has been sorted, it is washed, shredded into flakes, and further sorted. After that, the plastic is heated and extruded into new plastic pellets. These pellets are then sold to be used in new products. This stage can be done through mechanical recycling, where the plastic is physically processed, or chemical recycling, where the plastic is broken down into monomers to create new polymers.
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How to reuse plastic waste to make new objects
Plastic pollution is a significant issue, especially in the ocean, where it harms marine life. Plastic does not biodegrade, so it is important to reuse and recycle plastic items to protect the environment.
There are many ways to reuse plastic waste and turn it into new objects. Here are some ideas to get you started:
Plastic Bottle Vase
Get creative and make a vase from a plastic bottle. Decorate it with wool, paint or felt to make it unique. You can also use plastic bottles as planters or hanging baskets for your plants.
Storage Solutions
Plastic bottles can be reused to store plastic bags or other small items like pencils, buttons, or kitchen utensils. You can also cut off the top and bottom of a bottle to create a pen holder or a pot for craft supplies.
Watering Can
Punch some holes in the cap of a clean plastic bottle or milk carton, and you've got a watering can for your plants. You can also use milk cartons as scoops for gardening or cleaning up after your pets.
Keyrings and Lip Balms
Get creative and make flower keyrings or bottle cap lip balms from old plastic bottles. These can be filled with Vaseline, coconut oil, or tinted with an old lipstick.
Reduce, Reuse, Recycle
Remember to reduce your plastic consumption by choosing reusable options like water bottles, straws, mugs, and shopping bags. You can also choose biodegradable options made from bamboo or paper, which can be recycled or composted.
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The problem of plastic pollution and its impact on marine life
Plastic pollution is one of the major issues affecting the ocean. Up to 13 million tons of plastic waste enter the ocean each year, threatening marine ecosystems and the people who depend on them.
Plastic pollution has a detrimental impact on marine life, causing harm to creatures both large and small. From seabirds, whales, and dolphins, to tiny seahorses that live in coral reefs, no marine species is immune to the threat of plastic pollution.
One of the main ways plastic pollution affects marine life is through ingestion. Seabirds, sea turtles, and marine mammals often mistake plastic debris for food, leading to internal injuries, starvation, and even suffocation. Research indicates that half of the sea turtles worldwide have ingested plastic, and it is estimated that 60% of all seabird species have eaten pieces of plastic. This number is predicted to rise to 99% by 2050.
Another way plastic pollution harms marine life is through entanglement. Large items of plastic, such as fishing ropes, nets, and pots, can trap and entangle marine mammals and fish, leading to injury, starvation, and increased vulnerability to predators. An estimated 300,000 whales, dolphins, and porpoises die each year from entanglement in ghost gear, which is discarded or abandoned fishing equipment often made from plastic.
In addition to the visible impacts of plastic pollution, there is also a hidden threat in the form of microplastics. Microplastics are plastic particles smaller than 5mm that can be found in products such as face scrubs and toothpaste, as well as being shed from larger plastics through abrasion. These tiny particles are invisible to the naked eye, making it easy for marine wildlife to accidentally consume them. Microplastics can adsorb up to one million times more toxic chemicals than the water around them, and these toxins can then transfer to the fatty tissues of the organisms that ingest them. This process is known as biomagnification, and it affects higher levels of the food chain more severely.
To address the problem of plastic pollution and its impact on marine life, it is essential to focus on prevention and source reduction. This includes minimizing plastic leakage into the environment, making plastics less toxic, and promoting the reuse, repurposing, and effective recycling of plastics.
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How to recycle plastic at home
Recycling plastic is an excellent way to help the environment and reduce plastic waste. There are many ways to recycle plastic at home, and it is important to know what your local authority's rules are for collecting and sorting recyclables.
One way to recycle plastic at home is to reuse plastic items. For example, you could reuse a plastic water bottle instead of buying bottled water. You can also reuse common plastic waste to make something new, such as a bird feeder or a snack box.
Another way to recycle plastic at home is to melt and mould it into something new. This can be done by washing plastic bottles, cutting them into small pieces, and melting them in an oven at 350°F. However, it is important to remember that melting plastic produces toxic fumes, so this should be done in a well-ventilated area.
There are also several technologies that allow people to recycle plastic waste at home through 3D printing. One example is the Filabot, a compact 3D printer that recycles plastic objects into new shapes. Another method is called distributed recycling and additive manufacturing (DRAM), which uses plastic waste to create new products through 3D printing. With DRAM, you can either convert plastic particles into 3D printer filament using a recyclebot or skip this step and directly 3D print granulated plastic waste into products.
Finally, it is important to know what types of plastic your local authority collects for recycling. Some areas may only accept certain types of plastic, so it is worth checking before putting your plastic waste out for collection.
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Frequently asked questions
Plastic is one of the most popular and useful materials of modern times. However, it is a key concern for environmentalists, governments and organisations as it is often disposed of in non-environmentally friendly ways, resulting in polluted oceans, overextended landfills and ecological damage. Recycling plastic can conserve limited natural resources and energy.
Plastic is collected from homes, businesses and local recycling centres, then sent to a Material Recovery Facility (MRF) to be separated from non-plastic materials. It is then sorted by type, washed, shredded and melted into new recycled plastic pellets. These pellets are sold to be used in new products.
Plastic bottles are usually made from two types of plastic that are easy to recycle: PET and HDPE. 99% of UK local authorities offer collection facilities for these. Many local authorities also collect mixed plastics packaging such as pots, tubs and trays. Some supermarkets and retailers now collect a wider range of plastic bags and wrappings, including crisp and sweet packets, delivery bags and salad bags.
Incredibly hard-to-recycle plastics include crisp packets, salad bags, plastic wrap and bioplastics, composite plastic, plastic-coated wrapping paper and polycarbonate.
