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Old 08-16-2011, 05:00 AM   #1
Hex
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Default Why no 'recycle value' on glass wine bottles?

Discuss?

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Old 08-16-2011, 05:23 AM   #2
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Don't tell me what to do.

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Old 08-16-2011, 05:42 AM   #3
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I only throw out the screw tops.

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Old 08-16-2011, 06:50 AM   #4
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Wine drinkers are too pretentious. It would make the bottle look cheaper with a 10C stamp on it.

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Old 08-16-2011, 08:47 AM   #5
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fear of contamination..........some of those things (wines) are nasty!!!!!!!

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Old 08-16-2011, 11:15 AM   #6
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Because the energy to convert the ingredients to glass is the expensive part of the process and it is gone when the bottles are cool. Silica is plentiful and the primary ingredient in glass.

To "recycle" glass means melting it along with many other bottles and whatnot in a huge furnace and adding fluxes and stirring to get a homogeneous product that can then be run through a processing machine to get more bottles or whatever, but it is much easier, for the same energy to use raw materials and be assured of a clean and consistent product. Or the glass can be crushed when cold and used as gravel or aggregate in concrete or pavement.

If glasses of varying coefficient of expansion are combined in the same melt, products may not be homogenized and the glass may actually pull itself apart due to internal mechanical stresses. It is also much harder to get clean, pristine product from recycled glass than from raw glass.

Roadbed aggregate is a great way to recycle glass. Remelting recycled glass is mostly a marketing gimmick and the work is often aesthetically or even structually inferior to the same work produced from batch (raw) glass.

Cheers.

BSD

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Old 08-16-2011, 11:46 AM   #7
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Quote:
Originally Posted by Hex View Post
Discuss?

Who says there isn't? In Maine its 15 cents for wine and booze bottles. 5 cents for beer bottles/cans.

Redemption values are set by the state (like the rest of their alcohol laws).
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Old 08-16-2011, 12:57 PM   #8
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Thanks, didn't know Maine was doing that.
I think recycling has more to do with landfill space than actually remelting and reusing the glass; however, I have no idea what really happens.
Maybe our local landfill sorts through all our waste and pulls out the materials they can salvage when there is a demand for that material and/or space becomes limited.

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Old 08-16-2011, 03:04 PM   #9
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Quote:
Originally Posted by Hex View Post
Maybe our local landfill sorts through all our waste and pulls out the materials they can salvage when there is a demand for that material and/or space becomes limited.
haha
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Old 02-04-2013, 04:21 PM   #10
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Quote:
Originally Posted by BSD_Glass View Post
Because the energy to convert the ingredients to glass is the expensive part of the process and it is gone when the bottles are cool. Silica is plentiful and the primary ingredient in glass.

To "recycle" glass means melting it along with many other bottles and whatnot in a huge furnace and adding fluxes and stirring to get a homogeneous product that can then be run through a processing machine to get more bottles or whatever, but it is much easier, for the same energy to use raw materials and be assured of a clean and consistent product. Or the glass can be crushed when cold and used as gravel or aggregate in concrete or pavement.

If glasses of varying coefficient of expansion are combined in the same melt, products may not be homogenized and the glass may actually pull itself apart due to internal mechanical stresses. It is also much harder to get clean, pristine product from recycled glass than from raw glass.

Roadbed aggregate is a great way to recycle glass. Remelting recycled glass is mostly a marketing gimmick and the work is often aesthetically or even structually inferior to the same work produced from batch (raw) glass.

Cheers.

BSD
This is not true--glass has infinite recycling capabilities (any impurities are easily removed) and virtually all glass includes ground recycled glass as one of the ingredients by default.

It also requires half the energy to recycle a pound of glass as it does to create it from raw materials, and while the raw materials are plentiful, open pit mining is devastating to the environment.

http://earth911.com/recycling/glass/

Some states do have redemption values on wine bottles.
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