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.
出处
《化工环保》
CAS
CSCD
北大核心
1995年第1期28-31,共4页
Environmental Protection of Chemical Industry
关键词
萃取
废水处理
萤光试剂
extraction,wastewater treatment,fluorescent reagent.
