Abstract
Ceramic ion-exchange materials are expected to develop for water treatment. In this work, the ceramic ion-exchange materials are developed for life extension of plating solution and phosphorus recycling from plating wastewater. Ion-exchange materials were schwertmanite and hydrotalcite. Ion selectivity of ion-exchange materials were PO43- ≈HPO32- >>H2PO2-. In Ni-P non-electrolytic plating, the driving force is the redox potential for H2PO2- to HPO32- and PO43-, which inhibited the plating. It is required to examine the effect of the coexisting materials and regenerating condition of ion-exchange materials.
