电渗析淡化装置可根据水量、水质意任设计,但在设计之前必须先定出电渗析槽的机种、台数、系列配置及每台膜对数等。为此必须知道原水的水质、水温及产水水质和水量,从而求出运行时的电流密度。电流密度和整套装置必须在最经济合理的条件下选定。 The electrodialysis desalination device can be designed according to the amount of water and water quality, but before the design, the type of electrodialysis cells, the number of units, the series configuration, and the number of pairs of membranes must be determined. Therefore, it is necessary to know the quality of the raw water, the temperature of the water, the quality of the produced water, and the amount of water to determine the current density at the time of operation. The current density and the complete device must be selected under the most economical and reasonable conditions.