[aerohead]

Originally Posted by rmay635703

In terrestrial conditions it has long been believed a microscopic set of oppositely charged and magnefied plates could be used to concentrate “polar substances “ in a liquid/gas towards one plate allowing you to separate them using minimal power

This could be used to remove some of the salt in water or some of the co2/water vapor in air

Electrostatic precipitators function that way. Air is induced past an array of anodes or cathodes and any polar molecule present in the airstream will be attracted to one or the other, and adhere, until purposely removed.