scalarparty ([info]scalarparty) wrote,
@ 2006-04-28 05:45:00
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Entry tags:efficiency, gizmos, think

don't shoot the messenger
CFL
I know there's a love-in going on right now with every planet conscious person (or planetary-waking anyway) and the C.F.L. And sure, they use less energy than incandescents and are more efficient on a day-to-day basis. But I have a few questions, and only because I see CFLs becoming the panacea that paper recycling was just a few years ago. And it makes me wonder two things 1) has anyone seen a life-cycle analysis for CFLs? I mean how much energy it takes to make one, and of course how much energy is required to treat them once they have burnt out? And 2) has anyone considered what we will do with all that mercury? I mean if there are say, 1.5 Bn tungsten incandescents in North America right now, and we replace 1/2 with CFLs, so in 8 years what are we going to do with 750 Million mercury bulbs? I heard that only 13% of fluorescent bulbs get recycled and out of that something like 4% are CFL. Now surely, in the next few years we will figure out what to do with them. Right? Are we forcing GEcommage to deal with it? Osram Sylvania? What will this look like in a few years??

That's why I like LEDs!




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[info]marrael
2006-04-28 02:35 pm UTC (link)
Damn, I thought I was the only one wondering about the mercury in CFLs. Not that I have an answer for you.

The local recycling program for lightbulbs is nonexistent. And online, there are websites offering to take your used bulbs, but the package they want to sell you for shipping the bulbs to them is ridiculously priced.

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[info]scalarparty
2006-04-28 11:00 pm UTC (link)
well apparently there is a company called "The Lamp Recycler" but I oculdn't find them... i did find this list, and saw that many places tell you to bring your old ones in to get a discount on the next bunch. thats nice too.

And somewhere else I read this: ""the company that recycles the bulbs, utilizes a small vacuum chamber that is constantly rinsed with water. The lamps are fed into the machine and once in the vacuum chamber, the end of the lamp is broken open. The vacuum draws out the mercury and phosphorus, and cold water is used to keep mercury in its most transportable state, a liquid. The glass is then crushed and the aluminum end caps separated and these items are sent for recycling. The end caps are then sent to local smelters, and the glass is used to manufacture light-reflecting paint for highways. The mercury and phosphorus are placed in sealed drums and sent for separation, recycling and neutralization.""

seems like there's even a CFL stakeholders group so someone is taking it seriously. But still I dont understand the mercury and phosphorus "neutralization" that still sounds funny

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[info]rowanlangley
2006-04-29 07:26 am UTC (link)
Here in the UK we have Mercury Recycling by a new comapny up in manchester, who are more than happy to releive you of old fluorescents (compact or otherwise)

The mercury can then be re-used for new lamp tubes.

Fluorescents die usually by the emissive coating on the cathodes deteriorating. Generally it boils off over time , the blackening at the ends seen on old tubes is the cathode matterial condensing on the glass.

Take a look back through the entries in
www.livejournal.com/community/green_power_gen.

I think there is a link posted to the recycling company.

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