二维电催化处理高COD高氨氮含量废水

Study on the Treatment of High COD and Ammonia Nitrogen Containing Wastewater by Two-dimensional Electro-catalysis

以DSA电极为阳极、钛板为阴极,利用二维电催化氧化法对高COD、高氨氮含量难降解工业废水进行处理,考察了电流密度、极板间距、电解质加入量和电解时间4个因素对该废水中的COD及氨氮去除效果的影响,确定了适宜的反应条件。结果表明,当电流密度为30 m A/cm^2、极板间距为1.5 cm、电解质Na Cl加入量为2.0 g/L时,反应2.0 h后,废水中COD及氨氮的去除率分别为77.78%和95.07%。

Two-dimensional electro-catalysis oxidation method was used to treat the high COD and NH3-N containing wastewater, by using DSA as the anode and Titanium as the cathode. The four influences of current density, plate space, NaC1 electrolyte mass and electrolytic time on COD and NH3-N removal efficiency were investigated, and the suitable reaction conditions were as follows： the current density, plate space, NaCI electrolyte mass and electrolytic time were 30 mA/cm2, 1.5 cm, 2.0 g/L and 2.0 h respectively. The removal efficiency of COD and NH3-N in wastewater could reach 77.78% and 95.07%, respectively.