摘要
对阴极电Fenton法降解含甲基橙的模拟偶氮染料废水进行了试验研究。采用石墨作阴、阳极,考察了槽电压、电解质浓度、亚铁离子浓度等因素对甲基橙降解率的影响。结果表明,当槽电压为5 V、Na2SO4和Fe2+的浓度分别为14.08 mmol.L-1和0.27 mmol.L-1时,反应90 min后甲基橙溶液的脱色降解率可达98%以上,符合1级反应动力学。
The study on thetreatment ofmodel azo dye wastewaterbycathode electro-Fenton methodwas carried out. The anode and cathode were both made up of graphite electrode. The influences of operating parameters including electrode potential, electrolyte Na2SO4 concentration, Fe^2＋ concentration were investigated. At the conditions ofelectrode potential of 5 V,electrolyte Na2SO4 concentration of 14.08 mmol·L^-1 and Fe^2＋ concentration of 0.27 mmol·L^-1,the absorbency of methyl orange could be removed over 98% in 90 min, and the degradation of the dye accorded with first order kinetic equation.
出处
《水处理技术》
CAS
CSCD
北大核心
2010年第1期91-94,116,共5页
Technology of Water Treatment
关键词
阴极电Fenton法
甲基橙
影响因素
cathode electro-Fenton method
methyl orange
the influences of operating parameters
