Cationic exchanger was produced by co-polmerization of furfuraldehyde (palm nut fibre/corn -cob) and tannin (onion skin/peanut) under acid and base catalysis. Exchange process, distillation and membrane filtration were employed sequentially to optimally eliminate organic, inorganic and particulate matter present in waste water. Characterization of the exchanger revealed that the degree of polymerization was a function of high exchange site and hence efficiency. The Sorptive capacity of the characterized resins (1.85meq/g), measured favourably with the commercial Wofatit P.(1.9meq/g). The state of the art and the development of the catalytic technology in the area of water treatment are economical and offer opportunities for waste material utilization.