电催化氧化法处理亚麻废水的研究  

Study on electrocatalytic oxidation treatment of the fiber flax wastewater

作　　者：刘文武[1] 涂学炎[1] 王伟[1] 张世鸿[1] 潘媛[1] 

机构地区：[1]云南大学化学与材料工程学院,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2006年第3期251-256,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省自然科学基金资助项目(2004B0003M)

摘　　要：以自制的Ti/SnO2-Sb2O3/RuO2/Ce和Ti/SnO2-Sb2O3/α-PbO2/β-PbO2为阳极,采用掺Ru活性炭颗粒作电极间填充剂的三维电极法,电催化氧化处理经预处理后的亚麻废水.研究了填充剂的用量、支持电解质种类和浓度、体系温度、槽电压、电解时间等因素对废水化学耗氧量(COD)去除率的影响,确定了适宜反应条件.经先Ti基RuO2类电极,后Ti基新型PbO2电极的连续电解处理后效果为:COD,BOD5质量浓度均达GB8978—1996二级排放标准,NH3-N质量浓度达一级排放标准,亚麻废水COD总去除率为97.4%,电催化氧化阶段COD去除率达93.6%.Electrocatalysis-oxidative degradation of pretreated fiber flax wastewater was studied with three-dimension electrodes which were made of Ce/RuO2/SnO2 - Sb2O3/Ti anode or β - PbO2/α - PbO2/ SnO2 - Sb2O3/Ti anode and activated carbon carried with Ru. Various influence factors in relation to CODcr removal rate such as the mass ratio between activated carbon and wastewater, the kind and concentration of back-up electrolyte, operational temperature and time, applied voltage were examined. So the better reaction conditions were determined. After the continuous electrotreating with Ce/RuO2/SnO2 - Sb2O3/Ti anode and - PbO2/α - PbO2/SnO2 - Sb2O3/Ti anode the results showed that the CODcr and BODs value of treated water could meet the 2nd wastewater discharge standard of GB 8978-1996 and the NH3 - N value could meet the 1st discharge standard. In addition, the total removal rate of CODer could reach to 97.4% and the CODcr removal rate during electrocatalytic oxidation could reach to 93.6 %.

关 键 词：亚麻废水 DSA电极 电催化氧化 

分 类 号：X703.1[环境科学与工程—环境工程]