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脉冲电源电解处理含氰含银电镀废水
Authors
李清彪
洪金庆
+3 more
王海涛
王远鹏
苏远波
Publication date
15 September 2009
Publisher
Abstract
利用脉冲电源从含氰含银电镀废水中回收银和去除氰,对比了脉冲电源与直流电源对含氰镀银废水的处理效果,系统研究了脉冲电源的电解电压、占空比和脉冲频率等参数对电能消耗、银回收率和除氰率的影响。结果表明,脉冲电源较直流电源能更加有效降低阳极的超电位,减少电极的极化,从而降低槽电压,进而有效地降低电能消耗。脉冲电源的优化参数是:脉冲电压2.0V,脉冲频率1200Hz,占空比50%。在循环流速100ml.min-1,pH值10~11,曝气速率1.0L·min-1的实验条件下,通入电解电压2.0V、脉冲频率1200Hz以及占空比50%的脉冲电源,电解2.0h后,银回收率高达99%,除氰率达到86%
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Last time updated on 16/06/2016