电催化氧化降解土壤淋洗液中甲苯的试验研究

Experimental Study on Electrocatalytic Oxidation Degradation of Toluene in Soil Leaching Solution

采用自行搭建的电催化氧化装置,对土壤淋洗液中甲苯进行电催化降解。通过单因素分析分别探究了阳极材料、电解质浓度、电流密度、初始pH值、电极间距对甲苯降解率的影响。通过对最适反应条件进行组合,在使用Ti/PbO_(2)为阳极、氯化钠添加量为1.0 g·L^(-1)、电流密度为10 mA·cm^(-2)、初始pH值为4、电极间距为3 cm的条件下,甲苯的去除率为97.8%。通过实验证明,本研究具有高效、稳定降解土壤淋洗液中甲苯的能力,可为土壤淋洗液的处理提供理论依据。

This article uses a self-built electrocatalytic oxidation device to electrocatalyse the degradation of toluene in simulated soil leachate.The effects of anode material,current density,electrolyte concentration,initial pH,and electrode spacing on toluene degradation rate were investigated through single factor analysis.By combining the optimal reaction conditions,the removal rate of toluene was 97.8% under the conditions of Ti/PbO_(2) as anode,sodium chloride addition of 1.0 g·L^(-1),current density of 10 mA·cm^(-2),initial pH of 4,and electrode spacing of 3 cm.Through experiments,it has been proven that this study has the ability to efficiently and stably degrade toluene in soil leachate,providing a theoretical basis for the treatment of soil leachate.