de salinate research...

[SalientAngle]

I found this most interesting, not clear if it can be scaled to small s/v... but, looks promising...

http://www.geekosystem.com/graphene-desalination/

Graphene once again proves that it is quite possibly the most miraculous material known to man, this time by making saltwater drinkable. The process was developed by a group of MIT researchers who realized that graphene allowed for the creation of an incredibly precise sieve. Basically, the regular atomic structure of graphene means that you can create holes of any size, for example the size of a single molecule of water. Using this process scientist can desalinate saltwater 1,000 times faster than the Reverse Osmosis technique.