Nov 152011
 

Hey everyone,
On Friday November 10th, 2011. 5 members from Zero Waste Pittsburgh took a tour of Greenstar Recycling, who provides recycling services all the way from Cleveland to Central Pa. They process over 30 tons of recyclables every hour. The following fact sheet summarizes what we learned about recycling in Pittsbugh.

1. What is not recyclable?

Well, just about everything is recyclable. That is if there is a market for it and if it can be easily sorted in Greenstar’s automated single-stream system. Bottle caps, small scraps of paper, and other small pieces often become separated erroneously with crushed glass. Plastic bags also get caught in the sorting system, and large irregular items, such as toy bicycles do as well.

Some things that are not yet recyclable at Greenstar include:

Plastic bag and plastic wrap: You should collect these and take them to Giant Eagle for Recycling. They will bale them on site. In the summer of 2012- Greenstar will partner with a plastic-to-oil recycler that will allow them to take plastic bags.

Aluminum Foil: It is a different composition compared the can aluminum. Can-aluminum has high demand, but the market for the foil is small. Nonetheless if you’re not sure, it’s probably best to to bundle up your used aluminum into a big ball and put it in the recycling. The little pieces will fall in with the glass.

Packing peanuts and styrofoam: It breaks up to easily in the system and becomes mixed with glass. In addition, it’s low melting point allows it to coat the machinery and mess up some of the plastic sorting systems.

Plate Glass: Different kind of glass than the ones that go into making glass jars and bottles. Take these to Construction Junction.

Small irregular pieces of plastic: Small pieces of plastic are indeed recyclable, but they will fall into the glass stream if the pieces are too small.

2. What is recyclable?

There are a few things that we’re never quite sure about when it comes to recycling. The following questionable items are indeed recyclable at Greenstar.

1. Juice boxes. Yes even the ones with the plastic lining and aluminum plastic inside are taken at Greenstar.
2. Paperboard. Consider you’re cereal boxes and milk cartons as recyclable as well.
3. #6 Plastic. As long as it is not puffed up and in the styrofoam type, Greenstar will take and process this plastic. Indeed your Solo cups are recyclable too!
4. Then of course there are the regulars:

Glass containers: Jars, bottles, etc. These do not need to be of any particular size.

Plastics 1-7

Aluminum, tin, and steel cans.

Paper and cardboard. But make sure if you have shredded paper to bag it in a clear bag. When they are torn open, the little shreds of paper fall down to the glass stream and contaminate it.

Does Greenstar Recycle in Pittsburgh?

Yes and no. The City of Pittsburgh’s curbside program recycling is in a contract with another recycling company, Pittsburgh Recycling. They do not have the same recycling practices as Greenstar and may accept different material.

Greenstar does contract with all of the private waste management companies in the area, including Allied Waste and Waste Management among others. See if your building uses one of these companies for their waste management. In this event, your recyclables are making their way to Greenstar. Greenstar also has contracted with most of the municipalities in the area, so if you do not live in the city of Pittsburgh proper, you may want to see if Greenstar is the final destination for your municipal recycling program.

Fun Facts:

Your plastic bottles are often downcycled to make carpet thread.

Milk cartons often get downcycled to make Kleenex and tissues.

Greenstar is operated by ten workers per shift for pre-sorting.

Greenstar is part of a megaconglomerate that spans across the United States and Europe.

Til Next time!

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Jan 312011
 

The Way We See the World product design consultants have created edible cups called “Jelloware.”   The cups are made from a gelatinous extract of seaweed called agar agar.  These cups are tinged with flavor to compliment the drink inside.  The website highlights other The Way We See the World initiatives such as jeans designed with an attached hanging device, allowing the wearers to dry them anywhere, and a line of beauty products called “What the Hella” made in the Yucatan Peninsula.

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Jan 262011
 

Last ESW meeting, Dr. Weiland (our advisor), came to talk about the Natural Step from a thermodynamics perspective. Because of the snow, it wasn’t an in-person talk, but the Skype connection and local slides worked pretty well. One of the big things she started with was the idea that, with respect to matter, the earth is a closed system (with respect to energy, it’s an open and slightly unbalanced system). But that’s not strictly true.

Anyone who chats with me about sustainability will find that I have a few side issues – things I find fascinating and important, but will likely never work on. The biggest of these is overfishing, but my new one is helium.

Quick, where’s most of the helium in the world come from?

If you guessed ‘A government reserve built up from oil and gas extraction back in the 1960′s, you’re right!’ (and you clearly also follow this issue). Turns out, helium is fantastically rare relative to other elements, mainly because it’s a noble gas so it never bonds with other things to make liquids or solids, and it’s lighter than air, so on its own it will tend to move out into space. But we use it for lots of things (kids balloons, for example), and we don’t think about recycling it, except in very large applications like the LHC. But if it tends to leave, we don’t recycle it, it’s not common, and we’re running on a built up reserve, that means it could be yet another serious problem in not too long – even though we don’t normally think of elements as non-renewable resources. (as a side note, the US Gov. is selling it for about the same as it paid for it back in the 60′s – which is why it’s still cheap).

Regardless, the earth is a closed system with respect to most, but not all matter – and that little bit is more widely used and rarer than we may think.

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