Sofia Martinez
Paper and plastic are two of the most commonly recycled materials. Paper production accounts for about 35% of felled trees, and recycling paper saves energy and reduces CO2 emissions by 20% compared to incineration. The paper recycling process involves sorting, pulping, screening, de-inking, cleaning, drying, and forming the paper into sheets or rolls. Plastic, on the other hand, is not designed to be recycled, and a large portion of plastic waste collected for recycling is not actually recycled. However, recycling plastic can reduce the need to create new plastic. The plastic recycling process includes collection, sorting, reprocessing, and moulding into new products.
| Characteristics | Values |
|---|---|
| Paper recycling rate in 2023 | 65-69% |
| Amount of paper recycled in 2023 | 46 million tons |
| Paper recycling rate in 2021 | 68% |
| Amount of paper recycled in 2021 | 50 million tons |
| Amount of paper recycled in 2018 | 33 million tons |
| Paper recycling rate in 2018 | 68% |
| Cardboard recycling rate in 2023 | 71-76% |
| Amount of cardboard recycled in 2023 | 33 million tons |
| Corrugated cardboard recycling rate in 2021 | 91.4% |
| Plastic waste generated in the US in 2018 | 35 million tons |
| Plastic recycling rate in 2018 | 8.7% |
| Plastic bottle recycling rate in 2020 | 27.2% |
| Number of plastic bottles thrown away in the US every hour | 2.5 million |
| Plastic waste in oceans | 75-199 million tons |
| Time taken for plastic bottles to degrade | 450 years |
| Plastic recycling code | 1, 2, 3, 4, 5, 6, or 7 |
| Plastic recycling rate | Low |
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What You'll Learn
Paper recycling process
The paper recycling process starts with the collection of used paper. It's important to separate paper from other waste, as contaminated paper is often not acceptable for recycling. Once collected, the paper is transported to a materials recovery facility (MRF) to be sorted and measured. Different types of paper, such as cardboard, newspaper, magazine paper, and office paper, are sorted into separate categories as they will be processed differently.
After sorting, the paper is checked for contaminants, such as food residue or non-paper items, and then baled together and sent to a paper mill. At the mill, the paper is shredded into small scraps and combined with large amounts of water and chemicals to create a mushy mixture called pulp, which is approximately 99% water and 1% fiber. The pulp is then de-inked and passed through rollers to squeeze out the excess water, before being sent through heated rollers to form long rolls of continuous sheets of recycled paper.
In the final stage, the paper pulp is used to manufacture new paper products. The recycled paper fibers can be used alone or combined with virgin wood fibers to make the paper smoother and stronger. The pulp is mixed with warm water and chemicals, then fed into a papermaking device where the water begins to drain out, allowing the fibers to bond together to form sheets of paper. These sheets are then passed through press-rollers to remove more water, resulting in newly produced paper.
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Plastic recycling process
Plastic is a highly versatile and popular material that is used extensively in our daily lives. The recycling process for plastic is complex and can be disrupted by contamination, such as food residue, chemicals, or adhesives. However, with increased consumer and business awareness, plastic recycling rates have improved significantly in recent years.
The first step in the plastic recycling process is collection. Collectors from the government or private companies gather post-consumer plastic waste from various sources, including households, schools, and other institutions. After collection, the plastic waste is sorted into their respective types based on chemical composition, colour, thickness, and usage. Sorting can be done manually or by machines at recycling plants.
Once sorted, the plastic undergoes a washing process to remove impurities such as product labels, adhesives, and food residue. This step ensures that the plastic is clean and free from contaminants. After washing, the plastic is shredded or cut into smaller-sized pieces, known as "flake." This stage not only helps in breaking down the plastic but also allows for the removal of additional impurities like metals.
The shredded plastic or flake is then sold to recyclers, who further process the material. It undergoes another round of sorting to remove any lingering contaminants, such as glass or small metal pieces. The plastic is then washed again in hot water and detergent solution to dissolve adhesives and remove surface dirt.
The washed plastic is then melted and formed into pellets or "nurdles." These pellets are then transformed and moulded into new products. The melting and moulding process may vary depending on the specific type of plastic and the intended end product.
It is important to note that different types of plastic have different recyclability. For example, PET (Polyethylene Terephthalate) is commonly used for water bottles and is relatively easy to recycle. On the other hand, PVC, a versatile and common plastic type, is rarely recycled due to its toxicity during processing. Additionally, not all communities accept the same types of plastic for recycling, so it is essential to check with local recycling programs.
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What paper products can be recycled
Paper products are recyclable, but not all paper belongs in the recycling bin. Paper products that are widely accepted for recycling include newspapers, magazines, cardboard boxes, envelopes, and milk cartons. Pizza boxes are also accepted, but it is important to ensure that they are clean and free of food residue or grease stains. Some egg cartons, cereal boxes, and shoe boxes are also recyclable.
Before placing paper products in the recycling bin, it is important to check with local recycling programs, as acceptance may vary depending on the area. For example, New York City accepts almost all plastic bottles, jars, jugs, and containers, while other municipalities may only accept certain types of plastic identified by the recycling code, a triangle emblem with a number indicating the type of plastic and how difficult it is to recycle.
To recycle paper products effectively, it is crucial to keep them dry, clean, and free from food and liquid contamination. This helps ensure that the recycling process runs smoothly and reduces the chances of proper materials being thrown out due to contamination.
Additionally, it is worth considering alternatives to recycling, such as reducing and reusing. For instance, instead of using wrapping paper that is not recyclable, one could opt for 100% recycled wrapping paper or reusable gift bags and boxes. By keeping these guidelines in mind and checking local recycling guidelines, individuals can contribute to a more sustainable planet by effectively recycling paper products.
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What plastic products can be recycled
Plastic products are usually labelled with a triangle emblem and a number from 1 to 7, indicating the type of plastic and how difficult it is to recycle. Type 1 plastics, such as PET (polyethylene terephthalate), are the easiest to recycle, while type 7 plastics are the hardest. Some common plastic products that can be recycled include:
- Plastic bottles, including milk bottles and water bottles, which can be recycled into new bottles or other products such as carpets, clothing, and backpacks.
- Plastic containers, such as food storage containers, can be recycled into various products.
- Plastic bags and trash bags are often made from recycled plastic and can be recycled again.
- Plastic packaging, such as shrink wrap and shipping envelopes, can be recycled, although some types like cling film and blister packaging are not recyclable.
- Other plastic products that can be recycled include garden hoses, mud flaps, traffic cones, decking, floor tiles, and plumbing pipes.
It's important to note that not all plastic products are widely accepted by recycling programs, and the accepted types may vary depending on your location. Always check with your local recycling program to confirm which plastic products they accept. Additionally, some plastic products may be difficult to recycle if they contain multiple types of plastic or different layers that are hard to separate.
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Paper and plastic recycling rates
Paper and plastic are two of the most commonly recycled materials. Paper, in particular, is one of the most frequently recycled materials, accounting for half of the materials collected for recycling by weight.
Paper Recycling Rates
Paper makes up 23% of municipal solid waste (trash) generated each year, more than any other material. Americans recycled about 68% of the paper they used in 2018. The paper recycling rate has remained consistently high and has met or exceeded 63% each year since 2009. In 2021, more than 50 million tons of paper were recovered for recycling, achieving a 68% recycling rate. The 2022 recycling rate for old corrugated containers (OCC), also known as cardboard, was 93.6%, up from 91.4% in 2021. The paper industry has committed to significant investments to improve paper recycling and foster sustainability.
Plastic Recycling Rates
The United States leads the world in plastic waste, generating more than 35 million tons of plastic waste in 2018, with only 8.7% recycled. Plastic is being recycled at a lower rate than previously estimated, and the recycling industry has a long way to go in addressing plastic waste. Plastic recycling is often more costly and energy-intensive than creating new plastic from raw materials, contributing to low recycling rates. Misinformation is also rampant, with many types of plastics labeled as recyclable when they are not. The total bottle recycling rate for 2020 was 27.2%, a slight decrease from 28.7% in 2019.
It is important to note that recycling rates can vary by region and local programs. For example, New York City accepts all plastic bottles, jars, jugs, and containers, while other municipalities may have different acceptance criteria.
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Frequently asked questions
Paper is one of the most commonly recycled materials. It is also one of the most straightforward to recycle. Once the paper arrives at the recycling plant, it is sorted into different types and grades. It is then washed in a chemical bath to remove inks, plastic film, glue, and staples. The paper is then mixed with water to create a "slurry" which can be used to make new paper products.
Plastic recycling is more complicated than paper recycling due to the variety of plastics. Before recycling, plastics are sorted by resin type and sometimes by colour. The sorted plastic materials are then shredded and undergo various processes to remove impurities like glue and paper labels. The plastic is then melted and formed into pellets, which can be used to manufacture new plastic materials.
Most community or office recycling programs accept paper and paper products. Newspapers, magazines, envelopes with plastic windows, and pizza boxes can be recycled. Keep in mind that food residue, shiny or laminated coatings, and grease can contaminate paper products, making them unrecyclable.
Plastic items with a recycling emblem and a number 1, 2, 3, 4, 5, 6, or 7 can be recycled. Number 1 plastics, like PET products and water bottles, are the easiest to recycle. Check with your local recycling program to see which types of plastic they accept.
