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Application of electrochemical regenerated ion exchange to wastewater recycle, mixed acid wastes and
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C.P. Jones, A.M. Pierce, B.R. Roberts, BOC Edwards, USA
ABSTRACT
Electrochemically regenerated ion exchange (ERIX™)
concentrates chemical waste and recovers water for reuse. ERIX
incorporates proven electro-deionization
(EDI) technology, ion
exchange and electro-dialysis in a single cell. EDI and ion exchange
are used commercially to produce ultra-pure water. In EDI cells, the
mixed-bed
ion exchange deionizes the solution as it passes through. The
electrodialytic components move the ions from the resin to a
concentrate stream, thereby
achieving a continuous ion exchange
process without the need for periodic regeneration of the cell or
addition of regenerant chemicals. ERIX can be used for the removal of
both cations and anions.
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