[Terrapreta] Char sorption of water.

[Gerald Van Koeverden]

Brian,


I put 30 gm. of pyrolytic char into a glass and added water (just a  
little over 50 ml.)  until it was completely saturated.  Thus the  
water uptake was only about 170%

gerrit


On 6-Mar-08, at 5:23 PM, Brian Hans wrote:

> Im looking for a bit of help.
>
> Some of you with access to char, could you run a simple experiment  
> and offer some results?
>
> Putting a fixed amount of charcoal in a vessel, add water until it  
> doesnt pour out of the vessel anymore and record that sorption #.
>
> An example is that I put in 10g of material into a glass and  
> started adding water until it couldnt uptake it anymore. I then  
> poured out the excess water from the glass and recorded the amount  
> of uptake. In this case, I got ~225% weight uptake.
> Im looking for some others results to compare my material with...
>
> FYI perlite = 200-600%
>
> Thanks for the inputs!
> Brian
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