Sofia Martinez
Plastic and glass are two of the most commonly used materials in the world, with plastic being especially problematic due to its prevalence in single-use products. The United States, as the biggest plastic polluter in the world, has come under scrutiny for its recycling practices, or lack thereof. While glass is theoretically infinitely recyclable, the US has been struggling to implement effective recycling programs for both materials, with only 5% of plastic in the US being recycled and one-third of glass being recycled annually.
| Characteristics | Values |
|---|---|
| Plastic recycling rate in 2018 | 8.7% |
| PET bottles and jars recycling rate in 2018 | 29.1% |
| HDPE natural bottles recycling rate in 2018 | 29.3% |
| Plastic sent to landfills in 2018 | 27 million tons |
| Plastic combusted in MSW in 2018 | 5.6 million tons |
| Plastic generation in 2018 | 35.7 million tons |
| Glass recycling rate in 2018 | 31.3% |
| Glass generation in 2018 | 12.3 million tons |
| Glass recycling in San Francisco | Recycled into bottles in 6 weeks |
| Glass recycling in Akron, Ohio | Ended |
| Plastic production by 2050 | Triple of current production |
| Plastic recycling rate in Oregon and Michigan | Successful |
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What You'll Learn
Plastic recycling rates
The low recycling rates for plastic are due to several factors. Firstly, plastic is expensive to collect and sort, and there are thousands of different types of plastic that cannot be melted down together. Plastic also degrades quickly, and it has been found that the more plastic is reused, the more toxic it becomes. As a result, there are few markets for plastic trash, and most plastic ends up in landfills or worse.
There have been some efforts to improve plastic recycling rates in the US. The US Plastics Pact, for example, has set ambitious targets for increasing the recyclability and reusability of plastic packaging and improving the recycling process through technology. Environmentalists and lawmakers in some states are also pushing for legislation that bans single-use plastics and "bottle bills" that pay customers to return their plastic bottles. However, these efforts have faced steep resistance from the plastic and oil industry lobbyists.
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Glass recycling rates
Glass, especially glass food and beverage containers, can be recycled over and over again. In the United States, the glass recycling rate is roughly 33%, which is significantly lower than the 90% recycling rate in Switzerland, Germany, and other European countries.
In 2018, the US generated 12.3 million tons of glass, of which 31.3% was recycled, amounting to 3.1 million tons. This is a relatively small amount compared to the glass recycling rates in some European countries. The low recycling rate in the US is not due to a lack of technical know-how but rather economic and logistical factors.
One significant challenge is the size of the country. The distances between materials recovery facilities, cullet suppliers, and buyers tend to be greater in the US than in Europe. Transporting glass waste and cullet (crushed glass) is costly due to their weight, and these costs can deter glassmakers and potential cullet suppliers from investing in processing facilities. Additionally, the specifications for cullet vary among manufacturers, further complicating the process.
Some states have implemented "bottle bills" that require consumers to pay deposits on beverage bottles, incentivizing recycling to reclaim their deposits. These laws have been effective, with 98% of bottles being recycled in these states compared to the national average of roughly 33%. However, despite these efforts, it is unlikely that the US will quickly achieve European-level glass recycling rates due to the economic and logistical barriers mentioned earlier.
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Plastic waste management
Plastic is a cheap, versatile, and sterile material used in various applications, including construction, home appliances, medical instruments, and food packaging. However, when plastic waste is not recycled, incinerated, or disposed of in sealed landfills, it becomes an environmental pollutant.
The United States generated 35.7 million tons of plastic in 2018, with plastic making up 12.2% of municipal solid waste (MSW) generation. While the overall recycling rate for plastics in the US was 8.7% in 2018, the recycling rates for specific types of plastic containers, such as PET bottles and jars, were higher, at 29.1%.
To improve plastic waste management, the Environmental Protection Agency (EPA) has released the "National Strategy to Prevent Plastic Pollution," which aims to eliminate the release of plastic pollution into the environment. The EPA measures the generation, recycling, composting, combustion with energy recovery, and landfilling of plastic materials in MSW.
Some US states are pushing for legislation to ban single-use plastics and promote "bottle bills" that incentivize customers to return their plastic bottles for recycling. However, plastic recycling faces challenges due to the high cost of collecting and sorting plastics, the increasing variety of plastic types, and the degradation of plastic after one or two uses.
To effectively address plastic pollution, a combination of improved waste management strategies, reduced plastic production, and a transition to reusable and refillable systems is necessary.
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Glass waste management
Glass is 100% recyclable and can be recycled infinitely without losing quality. This makes it a highly sustainable material that can be reused and recycled into new products. However, global glass recycling rates are not 100%, indicating that improvements can be made in glass waste management.
Glass waste is commonly generated from used products such as bottles, jars, glassware, window panes, furniture, and manufacturing offcuts. Glass waste can also be a result of accidents, such as knocking over a vase or dropping a bottle, which can leave many shards of glass. Restaurants, bars, cafes, shops, and pubs are significant contributors to glass waste as they use and sell various products in glass containers.
Effective glass waste management is critical to reducing environmental impact and enhancing sustainability. Proper glass recycling helps conserve resources, reduce manufacturing costs, and lower energy consumption and greenhouse gas emissions. It also ensures regulatory compliance and avoids potential fines and penalties for non-compliance. Improperly disposed of glass can end up in landfills, where it takes a long time to break down, leading to higher disposal costs.
To improve glass waste management, individuals and businesses can implement proper disposal practices. This includes separating different colours and types of glass, ensuring broken glass is not placed in recycling bins, and recycling metal bottle caps separately. Glass recycling services can provide bins or containers and schedule collections to make the process more convenient and straightforward for businesses, especially those with limited space.
Overall, glass waste management is essential to support sustainability goals and reduce the environmental impact of glass waste. By understanding the importance of proper glass disposal and recycling, individuals and businesses can contribute to a greener future while also reaping economic benefits.
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Plastic recycling contamination
- Impact on Recycling Rates: Contamination can lead to recyclable materials being sent to landfills instead of being recycled. For example, bottles and cans can get entangled in plastic bags, causing them to be diverted from the recycling stream.
- Machinery Damage: Certain materials, such as plastic bags, can jam or damage sorting equipment. This disruption can affect the efficiency of the entire recycling process.
- Safety Hazards: Some contaminants, like medical or electronic waste, pose serious risks to the health and safety of recycling workers. Proper disposal of hazardous waste is crucial to protect those handling the recyclables.
- Food Residue: Leftover food or liquids in containers can spill or leak onto other recyclables, contaminating them. Even small amounts of food residue can reduce the value of recycled items and make them more challenging to sell to offset recycling costs.
- Unclear Labelling: Inconsistent or unclear labelling on recycling bins can confuse users, leading to incorrect waste separation. This can result in mixing non-recyclables with recyclables, compromising the entire collection.
- Varied Recycling Practices: Different cities and states have varying definitions of what is acceptable for recycling. Something considered recyclable in one location might be deemed a contaminant in another.
- Plastic Degradation: Plastic often degrades after one or two uses, and reusing plastic can make it more toxic. This limits the market for recycled plastic, as new plastic is cheaper and easier to produce.
- Sorting Challenges: The vast array of plastic types poses a challenge for recycling facilities. Each type of plastic has unique properties, and they cannot be melted down together, making sorting and recycling a complex and costly endeavour.
- Single-Stream Equipment Limitations: Single-stream recycling equipment separates flat objects like paper from round objects like containers. However, flattened containers can confuse the equipment, leading to incorrect sorting and contamination.
- Non-Recyclable Plastics: Certain plastics, such as plastic lids, chip bags, and Styrofoam, are not recyclable in many curbside programs or facilities. These items must be disposed of in landfills, as facilities lack the necessary systems to recycle them effectively.
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Frequently asked questions
The US does recycle plastic, but the recycling rate is low. In 2018, the recycling rate for plastic was 8.7% overall, with PET bottles and jars at 29.1% and HDPE natural bottles at 29.3%. However, a Greenpeace report found that most plastic ends up in landfills, and the amount of plastic produced is increasing.
The US does recycle glass, and it can be recycled repeatedly. In 2018, 31.3% of the 12.3 million tons of glass generated in the US was recycled. However, the viability of glass recycling varies by location, and some cities have stopped recycling glass since China stopped accepting US recycling.
There are several challenges to recycling in the US. Firstly, there is a lack of a market for recycled materials, which has led to increased costs for processing facilities and municipalities. Secondly, the variety of plastic types makes it expensive and challenging to collect and sort plastic for recycling. Additionally, plastic degrades quickly and becomes contaminated, making it less desirable for consumer goods companies. Finally, the loss of the Chinese market for recycling has significantly impacted the US recycling industry.
