Continuous ion exchange using magnetic shell resins. II. Dealkalisation—pilot plant study

From the results obtained in the treatment of a number of hard, alkaline feed waters in a pilot scale dealkalisation plant, it has been shown that the use of a magnetic carboxylic acid resin in a fluidised bed has definite advantages over conventional systems. Less resin is needed and simpler plants can handle the same throughput of raw water whilst maintaining the same quality of product. Plant operation is truely continuous without any complex valve system or pressurised vessels.