萃取法处理萤光废水  

Treatment of Wastewater from Fluorescent Reagent Production by Extraction

作　　者：仉蕾[1] 魏兴义[1] 刘勇弟[1] 

机构地区：[1]华东理工大学

出　　处：《化工环保》1995年第1期28-31,共4页Environmental Protection of Chemical Industry

摘　　要：采用萃取法处理萤光废水，最佳萃取工艺条件如下：ｐＨ为１，废水：萃取剂：稀释剂为２０：２：５。在此工艺条件下，萤光废水ＣＯＤ去除率可达９１％－９８％，色度去除率达９９．８％。萃取剂可再生回用，在萃取相中按萃取剂（包括络合物）的量加入等体积的浓度为２０％的ＮａＯＨ溶液，在９５－１０５℃加热回流５－１０ｍｉｎ，即可使萃取剂得到再生。The wastewater from fluorescent reagent production can be treated by extractionunder the following optimum conditions:pH=1, wastewater:extractant:diluent=20:2:5,reaching 91%-98%of COD removal rate and 99.8%of colourity removal.The used extrac-tant can be reused after regeneration by adding the same volume of 20%NaOH solution asthat of extractant into extract phase,heating at 95-105℃ and refluxing for 5-10min.

关 键 词：萃取 废水处理 萤光试剂 

分 类 号：X783.03[环境科学与工程—环境工程]