burndirt
Chemical
- Jul 6, 2007
- 10
I have a waste stream composed of:
Ethanol ~50% +/- 20% (denatured)
Water ~50% +/- 20%
NaCl ~1-3%
NO3 (nitrate) ~0-3%
organic compounds 1-3%
I would like to recover the (denatured) ethanol for reuse, and minimize the volume of other stuff to dispose of. (I can tolerate up to 30% water in the recovered ethanol, but I need to get rid of the nitrate, organics and NaCl)
Distillation is the most obvious route, but it is difficult to obtain a permit and it requires an explosion proof area which I don't have.
I have looked at membranes, but so far the ethanol and NaCl molecules are too close in size to separate efficiently.
volume is maybe 20-100L / Batch.
I don't mind to have an outside contractor deal take the material offsite to do the recovery, then return the ethanol.
Anyone have any ideas?
(present facility location Ontario, Canada... shipping any significant distance likely won't be economical)
Thanks
Ethanol ~50% +/- 20% (denatured)
Water ~50% +/- 20%
NaCl ~1-3%
NO3 (nitrate) ~0-3%
organic compounds 1-3%
I would like to recover the (denatured) ethanol for reuse, and minimize the volume of other stuff to dispose of. (I can tolerate up to 30% water in the recovered ethanol, but I need to get rid of the nitrate, organics and NaCl)
Distillation is the most obvious route, but it is difficult to obtain a permit and it requires an explosion proof area which I don't have.
I have looked at membranes, but so far the ethanol and NaCl molecules are too close in size to separate efficiently.
volume is maybe 20-100L / Batch.
I don't mind to have an outside contractor deal take the material offsite to do the recovery, then return the ethanol.
Anyone have any ideas?
(present facility location Ontario, Canada... shipping any significant distance likely won't be economical)
Thanks