Ti/RuO2-ZrO2电极电解处理焦化废水生化出水

采用热分解法制备了Ti/Ru O2-Zr O2钛基金属氧化物涂层电极,利用扫描电镜、X射线衍射仪等方法对电极的形貌结构和金属涂层物相进行了表征,并以该涂层电极为阳极,经预处理的钛板作为阴极构建了电化学催化反应发生体系以处理焦化废水生化出水。结果表明,在电流密度10 m A/cm^2、p H为7、电解时间60 min、反应温度25℃的优化条件下,焦化废水生化出水经电解处理后COD去除率可达96.2%,TOC去除率达87.0%,UV254大幅下降,原水中杂环类和环烷烃类有机物可降解为单环及简单链状烃类。

Preparation of Ti/RuO2-ZrO2 Electrode and Electrolytic Treatment for Biochemical Effluent from Coking Wastewater

The thermal decomposition has been employed for the preparation of Ti/RuO2-Zr O2 electrode contained titanium-based metal oxide coatings.Morphology and structure of the electrode and the phase of metal paintcoat was characterized by SEM and XRD.An electrochemical catalytic reaction generation system included above mentioned electrode as anode and titanium plate has been preprocessed as cathode was used for the disposing of bio-chemical effluent from coking wastewater.Test results showed that,under the optimum condition of the current density was 10 mA/cm^2,pH was 7,electrolysis time was 60 min,and the reaction temperature was 25℃,the removal rate of COD and TOC reached 96.2%and 87.0%,and the UV254 decreased obviously after electrolytic treatment of biochemical effluent from coking wastewater.The heterocyclic and naphthenic hydrocarbons in raw water could degrade into monocyclic and simple chain hydrocarbons.