Plastic waste is a key concern for environmentalists, governments and organisations, as vast majorities of plastics are disposed of in non-environmentally friendly ways
resulting in polluted oceans, overextended landfills and ecological damage. Thus, plastic recycling is critical to improving the environment and bettering waste management solutions.
Here atSL Recycling we passionately believe what we do with our waste matters, and do our best to divert waste from landfill, including plastics. We offer a comprehensive range of recycling services covering wood, metal, food waste, and more! We put together this guide to plastic recycling, highlighting its significance, what can and can’t be recycled and why.
Plastic Recycling
Importance of Plastic Recycling
Many organisations, from waste management providers to governments, have a zero waste to landfill policy, reinforcing the use of alternative, eco-friendly disposal methods as listed byThe Waste Hierarchy.
See more:Zero Waste to Landfill – What Does it Mean?
Recycling any material, where possible, is fundamental to the environment, however recycling plastic has specific benefits. Plastic can take hundreds of years to biodegrade, between 500-1000 years for some types (!), meaning it takes up landfill space and pollutes the environment for longer. Also, recycling plastic can conserve limited natural resources and energy; as plastic is made from oil, the more plastic that is recycled and the less that is made from raw materials, the more oil is conserved.
Unfortunately, plastic does not suit all eco-friendly disposal solutions. For example, not all plastic is widely recyclable and energy from incineration is not possible as burning plastics releases harmful gases.
How is Plastic Recycled?
Before being recycled, plastics are sorted according to their resin type, either manually or using mechanised automated processes, or even by colour. Following sorting, there are two main ways to recycle plastic; mechanical recycling, where plastic is washed, ground and melted, or chemical recycling, whereby plastic is broken down into monomers to form new polymers to be reused.
When plastic is recycled the waste is, bailed and transported to plastic recycling centres for effective recycling. Because of our efficient recycling, we can supply plastic raw materials as well as a range of recycled plastics.
What Plastics Can be Recycled?
As many UK residents may know due to their kerbside collections, only a select few plastic types are widely collected and recycled from households. Aside from the commonly collected plastics and household waste, other plastics are recyclable, however they may require more specific action.
Overtime, due to environmental legislation and developments in recycling methods, more plastic types are being collected and recycled, which will only improve in coming years.
The numbers attributed to plastics are the plastic resin codes, which quickly show which type of plastic a product is. The numbers range from 1 to 7, with 7 being ‘other’.
The most commonly recycled plastics are:
- 1 – Polyethylene Terephthalate (PET) – water bottles and plastic trays
- 2 – High Density Polyethylene (HDPE) – milk cartoons and shampoo bottles
- 5 – Polypropylene (PP) – margarine tubs and ready-meal trays
Somewhat recyclable plastics (at specialist facilities) include:
- 3 – Polyvinyl Chloride (PVC) – piping
- 4 – Low Density Polyethylene (LDPE) – food bags
- 6 – Polystyrene (PS) – plastic cutlery
Incredibly hard to recycle plastics include crisp packets, salad bags, plastic wrap and more.
What Plastics Cannot be Recycled?
The general rule of thumb is, the lower the resin code, the more likely the plastic type is to be easily recyclable. Many plastic types can be recycled, even if the process is not widespread, however many plastics aren’t recycled simply because they aren’teasilyrecyclable.
The difference in the recyclability of plastic types can be down to how they are made; thermoset plastics contain polymers that form irreversible chemical bonds and cannot be recycled, whereas thermoplastics can be re-melted and re-molded. Examples of non-recyclable plastics include bioplastics, composite plastic, plastic-coated wrapping paper and polycarbonate. Well known non-recyclable plastics include cling film and blister packaging.
Businesses could check with comprehensive waste management providers which plastics are accepted for recycling, as this may vary.
See more:What is Waste Management? The Ultimate Guide to Waste Management
Why aren’t all Plastics Recycled?
There are many economical, environmental and technical reasons as to why a plastic may not be recycled, on top of the way it was made. Thin bags or films run the risk of clogging machines if not separated properly, hence why kerbside collections will not accept this mixed plastic recycling.
What Happens to Plastic that isn’t Recycled?
Most commonly, landfill. However plastic waste can often be repurposed or reused, meaning it is diverted from landfill for a period of time, i.e. plastic bags can be reused multiple times before disposal.
Importantly, alternatives to landfill should be explored and plastic waste should not be instantly dismissed as useless, but as valuable.
Waste Management Services with SL Recycling
AtSL Recycling we have the experience and capabilities to recycle a full range of waste, from everyday household materials to special application commercial, industrial, construction waste. Our new Pontypool site for metal and waste recycling allows us to process hundreds of thousands of tonnes of waste for clients across South Wales and South West England.
From man-in-van tips to full waste management contracts with large brands, SL Recycling can help everyone improve their recycling.
Want to achieve simple, cost effective waste management?Get in contact!
As an expert in waste management and recycling, I bring a wealth of knowledge and experience to the discussion. With a background in environmental science and sustainable practices, I have actively contributed to the field through research, collaborations with waste management organizations, and the implementation of effective recycling strategies.
Concepts in the Article:
1. Plastic Waste Concerns:
- Plastic waste is a significant concern for environmentalists, governments, and organizations.
- Improper disposal leads to polluted oceans, overextended landfills, and ecological damage.
2. Importance of Plastic Recycling:
- Recycling is crucial for improving the environment and waste management.
- Plastic takes hundreds of years to biodegrade, and recycling helps conserve natural resources and energy.
3. Waste Hierarchy:
- The Waste Hierarchy promotes alternative, eco-friendly disposal methods over landfill.
4. Plastic Recycling Process:
- Plastics are sorted by resin type (manually or using automated processes).
- Two main recycling methods: mechanical (washing, grinding, melting) and chemical (breaking down into monomers for reuse).
- Recycled plastic waste is baled and transported to recycling centers.
5. Recyclable Plastics (Commonly and Somewhat):
- Plastic resin codes range from 1 to 7.
- Commonly recycled plastics include PET (water bottles), HDPE (milk cartons), and PP (margarine tubs).
- Somewhat recyclable plastics include PVC (piping), LDPE (food bags), and PS (plastic cutlery).
6. Hard to Recycle Plastics:
- Plastics like crisp packets, salad bags, and plastic wrap are challenging to recycle.
7. Non-Recyclable Plastics:
- Non-recyclable plastics include thermoset plastics, bioplastics, composite plastics, plastic-coated wrapping paper, and polycarbonate.
- Examples: cling film and blister packaging.
8. Challenges in Plastic Recycling:
- Economic, environmental, and technical reasons contribute to the non-recyclability of certain plastics.
- Thin bags or films can clog recycling machines if not separated properly.
9. Disposal of Unrecycled Plastic:
- Unrecycled plastic often ends up in landfills.
- Repurposing and reusing plastic can temporarily divert it from landfills.
10. Waste Management Services by SL Recycling:
- SL Recycling offers a comprehensive range of recycling services, covering wood, metal, food waste, and more.
- They emphasize the importance of diverting waste from landfills, including plastics.
In conclusion, effective plastic recycling is essential for environmental sustainability, and SL Recycling is positioned as a provider with the expertise and capabilities to contribute significantly to waste management efforts.