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铁阳极电化学对直接大红4BE模拟废水脱色

Keywords: 电化学,脱色率,脱色能耗,染料废水,直接大红4BE

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Abstract:

对铁阳极电化学处理直接大红4BE染料废水脱色率和脱色能耗的影响因素进行研究。考察了电流密度、染料溶液初始pH值、染料初始浓度和支持电解质Na2SO4浓度对脱色性能的影响。结果表明,电流密度、染料废水初始pH、染料初始浓度、支持电解质浓度对脱色率和脱色能耗产生较大影响。在电流密度1.667mA/cm2、pH值6.54、染料浓度50mg/L、Na2SO4浓度0.01mol/L、温度20℃、搅拌速度600r/min、电解时间60min条件下,脱色率达到92.1%,脱色能耗1.298kWh/kg染料、铁阳极消耗量41mg/400mL染料模拟废水。

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