On the water saving problems in electrodialysis desalination syst ems
Received date: 1999-12-22
Online published: 2010-10-01
Electrodialysis desalination equipment has been widel y used in producing soft or pure water all over our country. Because of its l ower rate of water recovery and wide application, a large amount of water runs off. To get to the button into the matter, the problem is caused by the blindnes s of the d esigners and manufacturers of electrodialysis desalination systems.The water sav ing method and principle of autofrequently changing pole using EDR with circulat ing dense water are introduced in the article. Based on the above principle, the water utilization ratio which sho uld be achieved has been worked out according to different original water natur e and desa lination demands. In the meantime, the saltness standard of the dens ified wa ter to be drained (800 mg/L) has been worked out as well. Thus, the amount of dr ained and densified water is largely reduced, the original water is saved signif icantly. The highest rate of water utilization ratio is 90%.
DONG Fanghe, WANG Yan . On the water saving problems in electrodialysis desalination syst ems[J]. Industrial Water Treatment, 2000 , 20(6) : 4 -6 . DOI: 10.11894/1005-829x.2000.20(6).4
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