MEANS AND METHODS FOR UTILIZING SODIUM HYDROXIDE

摘要

A method and apparatus for diluting a solution of an alkali metal hydroxide (MOH) by using seawater or any other aqueous solution are disclosed, in which a concentrated MOH solution and seawater contact opposite sides of a membrane adapted to transmit water but not other molecules, thus creating a diluted solution of MOH and concentrated brine. Additional embodiments include means for limiting fouling of the system by removing Ca and Mg from the seawater by precipitation or reaction with a flocculant. Means and methods for adapting the method and apparatus for use in a flue gas desulfurization system are also disclosed.