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What Happens to Recycled Plastic Bags?

K T Solis
K T Solis

Recycled plastic bags are used in grocery stores on a daily basis, and consumers tote them home filled to the brim with produce, canned goods, bread, and other household staples. Most people don't stop to think what happens to the bags once they are taken to a recycling center. The majority of recycled plastic bags are turned into composite lumber. Composite lumber is generally comprised of two equal substances: sawdust and plastic bags.

The lumber made from these two recycled substances is used for a variety of items. Wooden structures like door frames, window frames, and outdoor decks are just a few of the construction projects that use lumber made from recycled plastic bags. Recycled plastic bags are also used to make post-consumer resin. This resin is utilized in the production of new plastic bags, crates, pipes, pallets, and containers.

Pellets of recycled plastic.
Pellets of recycled plastic.

Recycling stations can be found in most communities in the U.S. Many grocery stores have an area designated for this purpose. No matter where consumers drop off their bags, only clean recycled plastic bags should be taken to the local recycling center. Food, saran wrap, prepackaged food bags, or receipts should never be left inside a bag destined for recycling.

A recycled plastic bag.
A recycled plastic bag.

When a recycling center begins the recycling process, it melts down the plastic. Next, the plastic is forced through an extruder, a machine that squeezes the plastic into long noodle-like shapes or small pieces. The extruder die molds the plastic before it is cut with a knife. Finally, the plastic exists in the form of composite lumber or tiny pellets that can be manufactured into other plastic items.

Plastic bags that aren't recycled slowly deteriorate, leaving behind small toxic fragments that can pollute the water and ground.
Plastic bags that aren't recycled slowly deteriorate, leaving behind small toxic fragments that can pollute the water and ground.

Recycling plastic bags helps the environment in several ways. Since plastic bags are not biodegradable, they remain for a very long time and can release chemicals, contaminating water and soil. Ensuring that all plastic bags are recycled helps to alleviate this problem. Chemicals are used in the production of plastic which pollutes air, water and food. Using fewer plastic bags also means that humans and animals will be less exposed to chemicals.

Recycled bags might be used in the creation of plastic sheeting.
Recycled bags might be used in the creation of plastic sheeting.

At times, plastic bags make their way to the ocean and marine animals eat them, thinking they are food. Some marine animals may even become entangled in the plastic bags. In short, taking plastic bags to the recycling center can help save the lives of animals living in or around the ocean.

People who want to protect the environment can make a conscious decision to use fewer plastic bags. For example, plastic bags can be recycled in the home. Some people use them to line trash cans or to carry their lunch to work and school. Pet owners often use them to pick up pet waste as well.

Discussion Comments

anon1003612

If plastic can be recycled, why does so much of it end up in the ocean?!

anon989058

Actually plastic bags do not need to be recycled as plastics, they can be burned thus recycling the energy contained within. This would save a lot of labor in sorting the plastic products. That this releases dioxins is a myth.

anon88652

Because it is convenient. There is no real reason to use them. Plastic can be converted into other plastic materials, but once created, it never actually goes away. Virgin (new) plastics continue to be manufactured and we continue to buy them. Very sad. Use glass and paper. It is recyclable.

anon37506

I enjoyed the information about plastic bags. My question is "If plastic bags are so bad for the environment, why do we use plastic garbage bags?"

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    • Pellets of recycled plastic.
      Pellets of recycled plastic.
    • A recycled plastic bag.
      By: Africa Studio
      A recycled plastic bag.
    • Plastic bags that aren't recycled slowly deteriorate, leaving behind small toxic fragments that can pollute the water and ground.
      By: photka
      Plastic bags that aren't recycled slowly deteriorate, leaving behind small toxic fragments that can pollute the water and ground.
    • Recycled bags might be used in the creation of plastic sheeting.
      By: Bert Folsom
      Recycled bags might be used in the creation of plastic sheeting.
    • Recycled plastic bags are commonly used in grocery stores.
      By: Kadmy
      Recycled plastic bags are commonly used in grocery stores.
    • Recycled plastic bags might be used to package lunches for children to take to school.
      By: Kimberly Reinick
      Recycled plastic bags might be used to package lunches for children to take to school.
    • Recycled plastic might be used to make water bottles.
      By: Eléonore H
      Recycled plastic might be used to make water bottles.
    • Recycled bags may be used to create plastic compresses.
      By: nito
      Recycled bags may be used to create plastic compresses.