Electrodialysis as a purification technology in the sugar industry

Thanks to recent improvements in both the structure of anion-exchange membr anes and in the design of stacks (operating at temperatures up to 60 degree sC), electrodialysis can be considered as one of the technologies that can help improve the cost-effectiveness of sugar factories by: (i) controlling organic fouling, (ii) reducing waste effluents and pollution loads, (iii) i mproving sugar yields, (iv) reducing the volume of molasses, (v) and saving capital costs. The operating results of a commercial plant in Europe after are presented, along with a detailed material balance.