Ultrafiltration membrane assisted cost effective ionizer for production of therapeutic alkaline ionized water

Abstract Alkaline reduced water produced by electrolysis has been drawing attention now-a-days owing to its health benefits and anti-oxidative properties useful for prevention of diseases. In the present study, a cost effective membrane aided ionizer device is developed in-house in batch mode for production of alkaline ionized water. Ultraporous membranes and cation exchange membranes are synthesized in-house, characterized and employed in batch ionizer for selective permeation of cationic minerals into alkaline water. The performance of ionizer is evaluated with various membrane and electrode materials for production of 9.5 pH alkaline ionized water. The quality of alkaline ionized water is assessed by determination of pH, oxidation reduction potential, anti-oxidant activity and mineral ion constituents. Brief cost estimation is carried out to understand the capital and operational value. PES based ultrafiltration membrane in combination with Titanium anode is found to be highly suitable for appropriate functioning of the ionizer. The water ionizer produces 8.5–9.8 pH alkaline ionized water with −110 mV to −250 mV ORP, enriched cationic minerals and antioxidants.