摘要
合成香料中间体废水(COD为132580 mg/L)采用电渗析→气浮除油→电-Fenton的处理途径。结果表明,在I=1.5 A,电解时间为120 min的条件下,电渗析效果最佳,R=6.7322×10-6mol/(mL.cm2);电渗析后调节pH值为3时气浮除油,COD去除率可达到59.8%,电-Fenton的最佳反应条件为:pH为3.5,I=0.75 A,Fe2+投加量为3 g/L,H2O2与Fe2+的摩尔比为10∶1,反应时间为75 min,此条件下废水COD去除率可达66.62%。3步处理后,总COD去除率达86.60%。
A study on pretreatment of wastewater in synthetic perfume production （COD is 132 580 mg/L） has been executed. Research results revealed that the best pretreatment technology method is that,initially treated by electro-dialysis, in which we find the best electric current is 1.5 A and the value of R is 6.732 2 × 10 ^-6 mol/（mL·cm^2） after 120 min＇ s electrolysis. Then it is treated by air flotation method to degrease and get 59.8% of COD removal rate. Finally it is treated by electro-Fenton method, for which the suitable conditions are pH = 3.5, electric current = 0.75 A, m （ Fe^2＋ ） = 3 g/L, n （ Fe^2＋ ）/n （ H2O2 ） = 10 ： 1, under which, COD removal reached 66.62% within 75 min. The total COD removal reached 86.60% after the best pretreatment technology.
出处
《应用化工》
CAS
CSCD
2008年第5期495-497,501,共4页
Applied Chemical Industry
基金
国际科技合作重点项目(2004DFA06200)
新世纪优秀人才支持计划资助(NCET-04-0770)
