||Novel Regeneration Method for Ion Exchange Systems.
Higgin, I. R. ;
||Chemical Separations Corp., Oak Ridge, Tenn.
( Sewage treatment ;
Ion exchanging) ;
Performance evaluation ;
Process charting ;
Cost estimates ;
Tertiary sewage treatment
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The purpose of the study was to outline and demonstrate an ion exchange water treatment system made low cost through a system of recovering and reusing regenerants. The need of the study was to prove that nitrate salts can be conveniently dissociated into acid and base useful for regeneration of ion exchange resins. The scope of the study covered laboratory scale steam calcination studies of nitrate salts, and continuous ion exchange runs to show economics in regenerant use and minimum dilution inherent in a continuous counter-current flow system. (Author)