靛红酸酐生产中废水处理技术研究  

Study on Wastewater Treatment Technology in Isatoic Anhydride Production

作　　者：张亚州 池吉安[2] 刘辉 郭亚茹 翟江超 ZHANG Yazhou;CHI Ji′an;LIU Hui;GUO Yaru;ZHAI Jiangchao(Henan Leberite Technology Co.,Ltd.,Pingdingshan 467000,China;Henan University of Urban Construction,Pingdingshan 467000,China;Henan Kaifeng Pingmei Shenma Xinghua Fine Chemical Co.,Ltd.,Kaifeng 475000,China)

机构地区：[1]河南莱伯瑞特科技有限公司,河南平顶山467000 [2]河南城建学院,河南平顶山467000 [3]河南开封平煤神马兴化精细化工有限公司,河南开封475000

出　　处：《河南化工》2023年第5期23-25,共3页Henan Chemical Industry

摘　　要：在靛红酸酐生产中产生的废水由于含盐量大、COD_(Cr)高,直接采用生化处理十分困难。以靛红酸酐生产中的废水为研究对象,利用自产的复合纳米絮凝剂对该废水进行预处理,处理后的废水COD_(Cr)去除率为81%,氨氮去除率为70.9%,经过预处理后色度由原来的深黑色不透明变为无色透明,并且经过脱盐系统的处理后,能够进入后续的生化系统处理。The wastewater produced in the production of isatoic anhydride is very difficult to be treated directly by biochemical treatment due to its high salt content and high COD_(Cr).The wastewater in the production of isatin anhydride is taken as the research object,and the wastewater is pretreated by self made composite nano-flocculant.The removal rate of COD_(Cr)is 81%and the removal rate of ammonia nitrogen is 70.9%.The color is from the original dark black to colorless and transparent after pretreatment.It can enter the subsequent biochemical system treatment after the treatment of desalination system.

关 键 词：含盐废水 COD_(Cr) 色度 氨氮 复合纳米絮凝剂 

分 类 号：X783[环境科学与工程—环境工程]