中国给水排水
中國給水排水
중국급수배수
CHINA WATER & WASTEWATER
2009年
21期
82-83,86
,共3页
石墨电极%电化学降解%甲基橙%敌草隆
石墨電極%電化學降解%甲基橙%敵草隆
석묵전겁%전화학강해%갑기등%활초륭
graphite electrode%electrochemical degradation%methyl orange%diuron
以石墨电极作阳极,考察了石墨电极对甲基橙和敌草隆的电化学降解效果.结果表明,酸性和中性条件有利于石墨电极降解有机污染物;当甲基橙和敌草隆的初始浓度分别为50、20mg/L时,在19 mA/cm~2的电流密度下电解4 h后,对甲基橙和敌草隆的去除率分别为86.6%和90.7%,对TOC的去除率分别为74.5%和85.5%;电解过程中,石墨电极的极化作用较小,电化学性能稳定.
以石墨電極作暘極,攷察瞭石墨電極對甲基橙和敵草隆的電化學降解效果.結果錶明,痠性和中性條件有利于石墨電極降解有機汙染物;噹甲基橙和敵草隆的初始濃度分彆為50、20mg/L時,在19 mA/cm~2的電流密度下電解4 h後,對甲基橙和敵草隆的去除率分彆為86.6%和90.7%,對TOC的去除率分彆為74.5%和85.5%;電解過程中,石墨電極的極化作用較小,電化學性能穩定.
이석묵전겁작양겁,고찰료석묵전겁대갑기등화활초륭적전화학강해효과.결과표명,산성화중성조건유리우석묵전겁강해유궤오염물;당갑기등화활초륭적초시농도분별위50、20mg/L시,재19 mA/cm~2적전류밀도하전해4 h후,대갑기등화활초륭적거제솔분별위86.6%화90.7%,대TOC적거제솔분별위74.5%화85.5%;전해과정중,석묵전겁적겁화작용교소,전화학성능은정.
Taking the graphite electrode as the anode, the electrochemical degradation efficiency of methyl orange and diuron by graphite electrode was investigated. The results show that the acidic and
neutral conditions are favorable to the degradation of organic pollutants by the graphite electrode. When the initial concentrations of methyl orange and diuron are 50 mg/L and 20 mg/L respectively, the current density is 19 mA/cm~2, and the electrolysis time is 4 h, the removal rates of methyl orange and diuron are 86.6% and 90.7%, and the removal rates of TOC are 74.5% and 85.5% respectively. During the electrolysis process, the polarization of the graphite electrode is slight, which shows that its electrochemical property is stable.