Nitrate anions, removal from groundwater

For anion exchange membranes containing a thermally responsive vinyl-monomer, the decreased water transfer through the membranes decreased permeation of sulfate ions, while that of nitrate ions increases with increasing temperature, which is a useful property, especially for the removal of nitrate ions from groundwater by electrodialysis. Such anion exchange membranes are also expected to find new fields of application. 

A strong-base anion exchange resin is used to remove nitrate ions from a groundwater with characteristics as given in the table below. The resin capacity is 2.5 eq/L. The selectivity for nitrate is 4.0. Determine the maximum volume of water that can be treated if 10 L of resins are used. 

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