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  • From: tvoivozhd <tvoivozd AT infionline.net>
  • To: homestead AT lists.ibiblio.org
  • Subject: [Homestead] Another repost on charcoal, activated charcoal home business.
  • Date: Fri, 14 Jan 2005 18:16:29 -0500

All activated charcoal is not the same, and for different purposes need not be. But it keeps coming to mind as a good flea market product for which no competition exists---something easy to package and romance for many uses. If it takes off, set up a website to add to sales volume.

https://lists.ibiblio.org/sympa/arc/homestead/2004-September/000384.html



ear Piet, Mike, Stoves and Gasification;
>
> Sometimes the best is the enemy of the good. If 100-400 IN charcoal is
> easily available at low cost, use it.
>
> When wood is gasified the yield of charcoal is only 3-10% and the process
> of converting the rest to gas is much like that that is used for making
> activated charcoal. Depending on the process I believe the IN can be as
> high as 400 without further effort and Agua Das and I think that a small
> change in the gasifier output could produce activated charcoal with an IN
> of 800-1000.
>
> I hope someone can send Mike Antal some gasifier charcoal to test while he
> is in Budapest...
>
> Onward, TOM REED
>
> -------------- Original message --------------
>
>> I think Mike Antal makes a lot of sense when he suggests using normal
>> charcoal instead of activated carbon for water purification in developing
>> countries.
>> To get a comparable active surface ares you need 2.5 to 10 times the mass
>> of active carbon. And much less fuss producing it.
>>
>> Peter Verhaart
>>
>>
>> At 18:19 12/10/2004, you wrote:
>> >Dear Rusty: this message comes to you from Budapest where for one month
>> >I am
>> >studying the properties of biocarbons (charcoal)with colleagues in the
>> >Hungarian Academy of Sciences.
>> >
>> >Most charcoals possess a surface area (comparable to iodine number) of
>> >100
>> >to 400 m2/g. The required IN of commercial activated charcoal used to
>> >treat
>> >water in the cities of the USA is 1000. Cities usually use IN instead of
>> >surface area as the criteria for purchase of activated carbons. Because
>> >of
>> >their requirement, untreated (i.e. unactivated) charcoal is usually not
>> >used
>> >to treat water.
>> __________________________________


Activated charcoal absorptive quality is principally described by surface area or IN number (Iodine number) There are other factors, see URL below.

http://www.carbochem.com/activatedcarbon101.html


Most charcoals possess a surface area (comparable to iodine number) of
>> >100
>> >to 400 m2/g. The required IN of commercial activated charcoal used to
>> >treat
>> >water in the cities of the USA is 1000. Cities usually use IN instead of
>> >surface area as the criteria for purchase of activated carbons. Because
>> >of
>> >their requirement, untreated (i.e. unactivated) charcoal is usually not
>> >used
>> >to treat water.
>> __________________________________





  • [Homestead] Another repost on charcoal, activated charcoal home business., tvoivozhd, 01/14/2005

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