[Stoves] research on activated carbon for water filters for the victims of disasters

[Anand Karve]

Dear Jed,
the TLUD stove is very good for charring biomass. We regularly use a T-LUD
contraption made from a 200 litre steel barrel for charring biomass.
Although we normally use it for agricultural waste, it works very well for
bamboo too. Bamboo charcoal, even without any treatment shows the
properties of activated charcoal.
Yours
A.D.Karve

On Sat, Jan 21, 2012 at 3:19 AM, Richard Stanley
<rstanley at legacyfound.org>wrote:

> Joshua,
>
> Its always good to hear from you.
>
> Regarding your request for creating activated carbon filter for purifying
> water, I am taking the liberty of passing this on to the stoves and the
> biochar online discussion groups, as these groups contain a host of really
> sound  technical resource persons with year os experience from all over the
> globe.
>
> This seems to be a whole new application of/ rationale for  biochar eh ?
>
> Anybody  ?
> Kind regards,
>
> Richard Stanley
> www.legacyfound.org
>
> On Jan 19, 2012, at 11:55 PM, Joshua Guinto wrote:
>
> > Hi Rok and Richard
> >
> > Greetings !
> >
> > I got this brewing opportunity to help the victims of the big disasters
> in the south of the Philippines, in the city of Iligan and Cagayan de Oro
> where about 2,000 persons died from the big floods last 16 to 17 December. \
> >
> > At this moment, there are still thousands of evacuees living in the
> tents.
> >
> > I would like to help by teaching them how to make the rocket stoves,
> fuels and water filters. Im quite confident with the stoves by now, but not
> the water filter.
> >
> > I would like to make a water filter using activated carbon. We know that
> we can carbonize wood and other biomass materials in the rocket stove
> simply by controlling the inflow of air while cooking.
> >
> > But from the raw carbon, it has to be activated, that is making it
> acquire a huge surface area. I once did an activated carbon by passing
> steam into a coloumn of wood charcoal inside a bamboo pole. But now i
> cannot remember the right procedure anymore. This i would like to seek your
> help on how to make it in a post disaster situation. I guess, there will be
> a lot of wood debri of timber, wood stick plus... pieces of metal and other
> parts of the house.
> >
> > The stoves and water purifier will help the victims a great deal. And i
> would like to make my mark and gain my experience.
> >
> > Anticipating your remarks.
> >
> > Jed
>
>
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-- 
***
Dr. A.D. Karve
Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
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