Posts tagged with polystyrene

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November 15, 2011

An Overview on Recycling polystyrene

By Maryruth Belsey Priebe

With a reputation for being hard to recycle, polystyrene, or PS plastic, is another type you should be worried about if you want to clean-up your waste bin and keep plastics from the environment. Used for foam cups and plates, as packing material, in CD containers, and even toys, PS plastic is everywhere, but recycling options are few and far between. Never fear, however. Ecolife has the best recycling PS tips to get you sorting these plastics out of your rubbish pile and into the recycling stream.

Environmental facts about plastic #6

True, polystyrene is a lightweight plastic that requires less energy to make and transport, but it still comes with a few environmental woes that will make you want to think twice about using it in your everyday life:

  • Aliases: Known alternately as polystyrene, PS, foam, expanded polystyrene (EPS), or by the trademark “Styrofoam.”
  • Consumption rates: PS is one of the only types of plastic going down in terms of consumption – its consumption has been reduced 9% from 1974 to 1999. Recycling rates have also increased a fair bit and close to 30% of all PS packing peanuts are reused rather than recycled or trashed.
  • Pollution: Polystyrene plastics are incredibly lightweight (made of primarily air) which means they’re prone to landing in wild spaces and the ocean where they pose threats to wildlife and natural ecosystems.
  • Human health: There are concerns that styrene from polystyrene food containers can migrate from the foam into the food or beverage, posing health problems for those consuming the product.
  • Decomposition: As with most things in landfills, polystyrene doesn’t generally biodegrade over time. Instead, it just forms a lumpy mess that can form leachate and pollute groundwater as a result.

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October 10, 2011

How to Recycle PS Plastic

How to Recycle PS Plastic

PS plastic recycle

Lower your impact on the Earth by recycling PS plastics comprehensively.

PS plastic stands for polystyrene. Polystyrene is most easily identified by the small number “6″ on the bottom of the item. It’s a hard plastic resin that’s sometimes transparent and is made into CD jackets, aspirin bottles and dishware. It is recyclable, but many small recycling plants don’t take it in curbside recycling because of the effort required to process it. Once recycled, PS can become, among other things, egg cartons, foam products, insulation and thermometers.

Instructions

    • 1

      Call your local recycling center for its plastics recycling capabilities. If you have curbside pickup, the center probably sent a brochure with details about the plastics you can recycle. If it takes all plastics — many large cities such as Boston and New York do — put the PS plastic out with your regular curbside recycling.

    • 2

      Request an alternate location from the recycling center if it doesn’t accept PS recycling. The center will have the number and address of any other recycling centers that can process the PS plastics.

    • 3

      Take the PS plastics to the recycling center or alternate location and drop it off for recycling.

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January 29, 2011

Recycling Polystyrene Foam

By Green Living Tips | Published  09/30/2009

Styrofoam is a trademark of the Dow company, but the material itself is called polystyrene. Like so many other plastics, it’s all around us – very commonly used in packing material as peanuts or expanded foam, in food trays and a wide variety of other products – even explosives such as napalm and hydrogen bombs!

The bad news is (aside from its use in WMD); polystyrene is manufactured from petroleum. It’s highly flammable and a chemical called benzene, which is a known human carcinogen, is used in its production.

Polystyrene in the environment

Polystyrene foam, used commonly as padding in appliance packaging, takes an incredibly long time to break down in the environment and additionally, animals may ingest it which blocks their digestive tracts and ultimately causes starvation. This foam is also abundant in the Great Pacific Garbage Patch.

Given the nature of polystyrene, it’s surprising that such an energy intensive, oil sucking and toxic substance is allowed to be use as packaging for food; particularly for items such as meat where the food has direct contact with it. Nearly two dozen cities in the USA have banned the use of polystyrene for this purpose.

Packaging and products containing polystyrene can usually be identified by a recycling triangle logo with the number 6 inside it stamped on the item.

It’s likely to be a very long time before the use of polystyrene is totally discontinued, and while we can try to buy products that don’t utilize the stuff, we need to deal with the styrofoam that winds up in our hands instead of it heading straight to landfill.

Unfortunately many kerbside recycling programs don’t accept polystyrene and given its bulk, it can be difficult to store. Also, polystyrene is often recycled to be used in single use products; such as more packing material, so it’s really important to get the word out about recycling this form of packaging.

Burning polystyrene

Some people choose to burn polystyrene in order to be rid of the stuff, believing that as chloro-fluoro hydrocarbons were eliminated from expanded polystyrene over a decade ago, it was safe to do so.

The burning of polystyrene releases styrene gas which can effect the nervous system. Also, as it usually burns with a  sooty flame, this indicates combustion isn’t complete and a complex mixture of toxic chemicals can produced by the relatively low temperature of a backyard burn.

Keeping polystyrene out of the waste stream

A pound of polystyrene recycled is a pound of new polystyrene that doesn’t have to be created. Currently in the USA expanded polystyrene (EPS) foam packaging is being recycled at a rate of approximately 10-12% each year.

Here’s a few tips as to what you can do with polystyrene to keep it out of the waste stream for as long as possible.

Keep it as packing – how many times have you needed to pack something for shipping and found you had nothing on hand? Break down large lumps of styrofoam into smaller chunks and keep a bag of it handy

Craft shops – I’ve read that craft shops are often a good place to take styrofoam as their customers use it in their craft projects.

Earth911.org – If you’re in the USA, there’s a search function at the top of the Earth911 web site where you can enter the term “polystyrene” and then in the box on the right, enter your location. The search results will provide listings of companies and organizations in your local area that will take polystyrene.Note: be sure to enter “polystyrene” rather than “styrofoam” as the latter, being just a brand name, is unlikely to return any results.

Planters – I’ve seen it used in pot plants to assist with drainage and as a filler – however, I’m not sure about the possibility of contamination when used in this way.

Mail back initiative – The Alliance of Foam Packaging Recyclers offers a mailback program to USA residents; whereby you send the polystyrene in via the US mail service. There’s a cost involved (postage), but this may prove more economical to you that carting it somewhere by car. You can learn more about this option here.

Sell it! – If polystyrene is something you get a lot of; you might be able to make a few bucks from it. The Recycled Plastic Markets Database allows you to search for buyers of a wide variety of plastics.