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Giant Microwave Turns Plastic Back to Oil
Posted by
samzenpus
on Wed Jun 27, 2007 11:58 PM
from the but-how-is-it-on-popcorn dept.
from the but-how-is-it-on-popcorn dept.
An anonymous reader writes "From the newscientist article: "Key to GRC's process is a machine that uses 1200 different frequencies within the microwave range, which act on specific hydrocarbon materials. As the material is zapped at the appropriate wavelength, part of the hydrocarbons that make up the plastic and rubber in the material are broken down into diesel oil and combustible gas.""
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Hooray! (Score:5, Funny)
Re:Hooray! (Score:5, Funny)
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Re:Hooray! (Score:5, Funny)
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Re:Hooray! (Score:5, Funny)
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I've been saying for years (Score:5, Insightful)
Re:I've been saying for years (Score:5, Interesting)
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Re:I've been saying for years (Score:5, Insightful)
Unfortunately, I could easily see it being economically infeasible to mine garbage dumps, because the cost of environmental remediation would be worse than just leaving the resources there, entombed with all the hazardous stuff.
Really, if we had a slightly longer planning horizon than we seem to have, we'd at least be sorting our garbage before burying it, instead of piling it all together. Just pulling out all the metal and putting it in one hole, with the plastic and organics in another, or burying similar types of appliances together, would make the landfills that much more attractive to mine later on.
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Need an enforcement structure, though. (Score:5, Informative)
In fact, I'm pretty sure that in my municipality, it's technically illegal to throw out anything that's toxic into the regular trash, but there's no enforcement mechanism, and given a choice between taking that old NiCd phone battery or fluorescent light tube to the recycling center, and just putting it in the trash
I've heard anecdotally that in Japan, there are people who basically go through trash at transfer stations, and will hunt down (based on personally identifying information in the trash) those folks who don't sort their recyclables out and reprimand/embarrass them -- short of something vaguely creepy like that (and in the U.S., social ostracism and humiliation aren't going to work as punishments), I'm not sure any consumer-sorting programs are going to work.
Without draconian enforcement, I think the sorting has to be -- or at least has to be backed up by sorting -- done at the transfer station or dump.
From a different perspective, sorting garbage based on predetermined criteria seems to be like something that, once you get over the initial investment in the system that does it, is probably better done by one giant machine that sorts the garbage for 100,000 people, than each of those 100,000 people having to take a few minutes a day to think about it. From a purely economic perspective, the opportunity cost of everyone's time probably justifies an automatic sorter, and when you factor in the recovered value from the recyclables [1] and the possible "dump mining" aspects that it creates later, I'd think it would be a good investment.
[1] The value of the metal and Type 1 plastic, anyway; the higher-number plastics don't seem to be worth recycling right now, at least based on what I've read.
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Enforcement isn't the problem. (Score:5, Insightful)
I might consider doing this when my CRT monitor finally fails, but somehow I doubt that burning 12 gallons of gasoline for a single compact bulb is less harmful to the environment than tossing it in with the regular trash. And if it's not, then there's no point in my continuing to use them, as the 12 gallons of gasoline puts the lifetime cost well over that which regular light bulbs would've been over the same time period. They fail to break often enough that just accumulating a bunch of spent CFLs is really an option. It'd take me ten years to fill a small box with 'em, and frankly, I don't want to store hazardous waste for that long.
The items aren't exactly very large or numerous. I fail to see why they can't just put one or more small bins at the transfer station for them. How much space would a whole town's worth of expired button batteries need to take, anyway?
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Re:I've been saying for years (Score:5, Informative)
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Interestingly (Score:5, Funny)
I knew it! (Score:5, Funny)
Irony (Score:5, Funny)
Good! (Score:5, Funny)
Already done in a bioreactor (Score:5, Funny)
Try feeding your dog a (small) Lego. It has the same effect. For almost a week.
liquify other hydrocarbons? (Score:5, Interesting)
A giant microwave... (Score:5, Funny)
Everything old is new again (Score:5, Funny)
There are countless stories of ancient technology where enlightened beings create things or destroy them by utilising special harmonic vibrations.
We have pyramids and whole cities being constructed in the remote jungle covered mountains of Peru by a small number of 'dwarfs' who move massive blocks of granite around using a nothing but a 'chiming rod'. (Sound being a vibration in teh audible spectra).
We have the armies of King David knocking down the walls of Jericho by blowing specific notes on the sacred horn of destruction. (Sound again being a vibration in teh audible spectra).
We have ancient Indians flying around in Vimyana airships and laying waste to massed armies with blasts of specially coded light waves. (Light being a vibration in teh visible spectra).
From ancient Inuit culture, we have heroes who can 'hummm' inaudible songs to summon a great whale from beneath the ice caps of the frozen north, and command the whale to do their bidding. (Subtonal vibrations in teh sensory spectra)
We have the ancient Malinese who claim to have built a city UNDER THE OCEAN in a single day, by banging two large fish together. (A vibration in teh olafactory spectra perhaps ?)
And the ancient Australian aboriginies, where the rainbow serpent created the mountains and the rivers and then literally sang day and night and linear time into existence. (A vibration in teh temporal spectra ?).
So why should we be surprised that vibrations in teh Microwave spectra hold the power to perform the modern alchemical trick of turning old barbie dolls and art-deco floor coverings into diesel fuel ?
Thats hardly progress - I would be impressed if they came up with a giant titanium chiming wand that could remotely construct a magnificent city on the Moon in a couple of hours, or a 100 square mile flawless pyramid of solid ruby on the surface of Mars over the space of a long weekend
Re:but... (Score:5, Insightful)
That addresses the energy issue, but still leaves open the question of how much it costs to maintain the equipment. You'd have to think they've got some sort of business model worked out if they've progressed to the point of selling to customers.
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Re:but... (Score:5, Insightful)
-jcr
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Re:but... (Score:5, Insightful)
Compare that to this, where, according to the article, it produces enough oil to run itself plus "other" machinery. Coated wire goes in, stripped wire comes out.
One big issue comes up for me: the contents of that oil. In such a recycling process, the oil itself could simply be gelled and discarded, with the energy to run the machine coming from cleaner sources; the key issue is that you're not doing burns of toxic plastics. So it's still useful. For wider use, however, one would want the oil to be clean enough to use. What happens with chlorinated plastics, like PVC? Where does the chlorine end up? What about fluorinated plastics? And so on -- where do all of these things end up?
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Re:but... (Score:5, Insightful)
It also doesn't require that the oil produced be comparable in price to the imported stuff, as there is additional value added in the form of reduced processing of their auto waste. If the machine creates real savings in that area then the fact that it powers itself is a nice secondary feature.
A landfill reducing device that powers itself with a net energy surplus doesn't sound like it has no commercial value.
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Re:but... (Score:5, Insightful)
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Exxon has been working on that. Re:People... (Score:5, Funny)
This is true and people have been using animal fat as a fuel ever since they discovered fire. Exxon realized that 150,000 people already die each year from global warming and their bodies represent an untapped, carbon neutral fuel source. Check out the results at Vivoleum.com [vivoleum.com], and you to may want to be a candle or SUV fodder. Burn guilt free!
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Re:Question about the process... (Score:5, Funny)
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