铁催化内电解法预处理染料中间体废水的研究  

Iron-catalyzed Internal Electrolysis for Pretreatment of Dyeing Intermediate Wastewater

作　　者：张英[1] 任国栋[1] 唐秀华 陈良才 魏宏斌[1] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]上海中耀环保实业有限公司,上海200092

出　　处：《中国给水排水》2010年第23期86-87,90,共3页China Water & Wastewater

摘　　要：研究了铁催化内电解法对染料中间体废水的预处理效果，考察了初始pH、曝气时间、铁投加量、催化反应时间等因素的影响。结果表明，在初始pH值为4、曝气时间为3h、铁投加量为100g／L、催化反应时间为30～60min的条件下，预处理效果最佳，对COD和色度的去除率可分别达到58．51％和89．07％，废水的COD浓度和色度可分别从5047mg／L和6832倍降至2094mg／L和747倍。The effect of iron-catalyzed internal electrolysis in pretreatment of dyeing intermediate wastewater was studied, and the influence of initial pH, aeration time, iron dosage, reaction time and so on was investigated. The optimal pretreatment conditions are as follows ： pH is 4, aeration time is 3 h, iron dosage is 100 g/L, and reaction time is 30 to 60 rain. Under those conditions, COD is reduced from 5 047 mg/L to 2 094mg/L, its removal rate being 58.51% , and color is reduced from 6 832 times to 747 times, its removal rate being 89.07%.

关 键 词：铁催化内电解 染料中间体废水 COD 色度 

分 类 号：X703[环境科学与工程—环境工程]