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goafrit
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Re: Bioelectronics
goafrit   5/1/2014 4:41:26 PM
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>> It shows how important these alternative approaches to mining are.

Absolutely, it has been called the next phase of mining. China leads in it. Picking rare earth metals from scraps and take them back to products. One major challenge especially for developing world is that it requires technology to do so efficiently.

goafrit
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Re: How many mushroom?
goafrit   5/1/2014 4:39:22 PM
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>> . There are very few companies that do that and they are considered NGOs and they cannot compete with regular industries. Collection of e-waste from source is almost not there.

e-Waste requires special tools and technologies that developing nations do not have. That is one of the reasons why it is not done at scale. Also, the fact that most developing nations do not consume through manufacturing some of the by-products of e-waste, the market is small for major investments.

Anand.Yaligar
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Re: How many mushrooms?
Anand.Yaligar   4/16/2014 2:20:43 PM
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@goafrit, you bring a very interesting perspective to this whole subject. Am not an expert in organic or biochemistry but I believe that it will take very many mushrooms to extract 100 grams of gold from, say, a ton of electronic waste. As such, there is the possibility that while working to save the environment by using non-toxic disposal methods they may actually end up harming the environment by using up too much of the natural resources for the process.

Etmax
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Re: Bioelectronics
Etmax   4/14/2014 10:57:17 PM
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Hmm even diamond??That would make diamond cheap enough to use as an insulator for all high speed semiconductors, improving heat dispersion while reducing capcitive losses.

Does anybody following this thread know whether crystaline carbon can be laid down minus the pressure typically needed??

Etmax
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Re: Bioelectronics
Etmax   4/14/2014 10:53:51 PM
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I watched a video on YouTube where a guy presented the state of the world in terms of mining and the energy to support it. It was an eye opener. I recommend we all watch it.

It shows how important these alternative approaches to mining are.

I search on YouTube for "peak Mining" and found it again:

https://www.youtube.com/watch?v=TFyTSiCXWEE

Sheetal.Pandey
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Re: How many mushroom?
Sheetal.Pandey   4/13/2014 9:28:02 PM
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The article brings out a very important point on e-waste. In developing nations like India, e-waste recycling is still at its infancy. There are very few companies that do that and they are considered NGOs and they cannot compete with regular industries. Collection of e-waste from source is almost not there. You are at your will to either get it recycled by going and giving personally to the right manufacturer or just throw on the streets and no one cares. Its hig time waste is seen seriously and people come forward to get it recycled. It must be a citizen's responsibility.

goafrit
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Re: How many mushroom?
goafrit   4/13/2014 2:20:18 PM
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>> How many mushrooms are required for 100g of gold? Will this imbalance other economic factor - price, availability etc?

The good question - it may be wiser for the farmer to sell the mushroom if the cost to benefit analysis in the electronics will not match going into Africa to mine new metals.

goafrit
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Re: Bioelectronics
goafrit   4/13/2014 2:19:16 PM
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>. bioelectronics

Never read of that one but it sound great. But it is truly non fancy to put bio before anything electronics as electronics is the most polluting and non-biologized all of modern industrial processes. Etching and the whole thing done in clean waste water and use really bad chemicals.

goafrit
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Re: Bioelectronics
goafrit   4/13/2014 2:17:01 PM
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I think when we run out of these rare metals, we will then develop a way that when we discountinue a device, the non-essential part will chemically breakdown leaving the useful metals. I do not see how the world can run in the next 100 years if there is no new way of doing things as these materials are not regenerative.

prabhakar_deosthali
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using e-waste as manure
prabhakar_deosthali   4/13/2014 8:16:21 AM
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It may be possible to use some kind of a targeted farming where the e-waste is used as a manure and plants specifically more likely to absorb the precious metals from the e-waste are grown in such targeted farms.

 

The produce from such farms can then be processed to recover the metals.

 

This could be an envorinment friendly option to recycle e-waste.

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