Fe^(3+)-TiO_(2)@CGS三维电极电化学处理苯酚及氨氮废水的研究

Electrochemical treatment of phenol wastewater and ammoniacal nitrogen wastewater by Fe^(3+)-TiO_(2)@CGS three-dimensional electrode

以钛板为阳极、石墨板为阴极、煤气化渣负载Fe^(3+)-TiO_(2)粒子(Fe^(3+)-TiO_(2)@CGS)为三维电极,构筑了电化学处理苯酚废水、氨氮废水的三维电极反应器,考察了废水溶液pH、电流强度、粒子投入量对废水COD和NH_(3)-N的去除效果的影响。结果表明,苯酚废水溶液在pH=3、电流强度为1.2 A、粒子质量为3 g的条件下,COD去除率达到42.3%;氨氮废水在溶液pH=7、电流强度为1.0 A、粒子质量为3 g的条件下,NH_(3)-N去除率可达到67.5%。

Taking titanium plate as anode,graphite plate as cathode,Fe^(3+)-TiO_(2)particles loaded on coal gasification slag(Fe^(3+)-TiO_(2)@CGS)as three-dimensional electrode,a three-dimensional electrode reactor is constructed for electrochemical treatment of phenol wastewater and ammoniacal nitrogen wastewater.The effects of wastewater pH,current intensity and particle input on the removal of COD and NH_(3)-N are investigated.Experimental results show that the removal rate of COD reaches 42.3%when pH=3,current intensity is 1.2 A,and particle input is 3 g.The removal rate of NH_(3)-N in ammoniacal nitrogen wastewater can reach 67.5%as pH=7,current intensity is 1.0 A,and particle input is 3 g.