采用循环式电渗析器处理石煤提钒过程中产生的大量高盐度、富含重金属的酸性废水.结果表明:在不同电压条件下,淡水箱中的盐度在脱盐开始时变化显著,随着脱盐的进行,盐度变化逐渐趋于平缓;55 V时的平均脱盐速率为19.84 mg/(L-s),约为25V时脱盐速率的3倍;电流随时间都表现出先上升再下降的变化趋势,55 V时的单位能耗为25 V时的2倍.脱盐过程中,阴离子的脱除顺序为Cl-、SO42-.试验中单台循环式电渗析的最大淡水产率为78%,淡水可回收用于工业生产或排放.
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