摘要
采用铁、铝极板电絮凝法处理实验室模拟含磷废水,探究了通电电压、极板间距、通电时间及初始p H等主要参数对除磷效果的影响。结果表明:通电电压、极板间距、通电时间及初始p H均能影响除磷效果,铝、铁电极对磷的去除率最高可以达到96.8%、99.5%。在试验条件下,得到以铝板为极板去除废水中磷的最优操作条件为:极板间距2.5cm,通电电压为25V,通电时间25min左右,初始溶液p H为7.0。并且根据反应动力学试验证明了铁、铝极板电絮凝除磷反应均为一级反应,其反应速率常数分别k=0.015506,k=0.02309。
Phosphorus wastewater was treated by Electro-coagulation with iron,aluminum plate in this paper. The factors such as electrolysis voltage,interelectrode distance,electrolysis time and Initial p H on the adsorption rate of phosphorus. The results showed electrolysis voltage,interelectrode distance,electrolysis time and Initial p H could affect the removal rate of phosphorus. The removal rate of phosphorus could reach above 96.8% 、99.5%when using iron, aluminum plate. And in this Experimental conditions,when using the aluminum plate,the optimal operating conditions were：Interelectrode distance 2.5cm,electrolysis voltage of 25 V, electrolysis time is about 25 min, the initial solution p H of 7.0.And that the reaction of removing phosphorus using the iron,aluminum plate was proved to be first order reaction based on kinetic experiments,and the reaction rate constant were k =0.015506, k = 0.02309.
出处
《能源环境保护》
2015年第4期12-15,共4页
Energy Environmental Protection
关键词
电絮凝
含磷废水
处理
Electro-coagulation phosphorus wastewater treatment.
