Treatment of alkali washing was tewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide by ion-exchange membrane electrodialys is

doi:10.11894/1005-829x.2000.20(4).46

INDUSTRIAL WATER TREATMENT ›› 2007, Vol. 27 ›› Issue (3): 46-48. doi: 10.11894/1005-829x.2000.20(4).46

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Treatment of alkali washing was tewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide by ion-exchange membrane electrodialys is

Chen Huiting¹, Kang Juan¹, Chen Huifei², Zhao Yuming¹

1. State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China;
2. The Institute of Water Conversancy Project Surveying Wuyi, Wuyi 321200, China

Received:2006-10-15 Online:2007-03-20 Published:2010-10-01

离子膜电解法处理环氧丙烷氯醇化尾气碱洗废水

陈慧婷¹, 康娟¹, 陈慧妃², 赵玉明¹

1. 南京大学环境学院污染控制与资源化研究国家重点实验室, 江苏南京 210093;
2. 浙江省武义县水利水电勘测设计所, 浙江武义 321200

作者简介:陈慧婷(1981- ), 2005 年毕业于南京大学环境学院, 硕士。电话: 13632953518, E-mail: summerep@163.com。

Abstract

Abstract:

A method of using ion-exchange membrane electrodialysis for treating the alkali washing wastewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide is described. Chemical oxygen demand of wastewater decreases by 78% without adding chemical. At the same time,the alkali is recycled from wastewater and the alkalinity decreases,too. The recycling ratio could arrive at 73.55%. The good pretreatment is supported by that for the following biochemical treatment.

Key words: chlorohydrination, alkali washing wastewater, ion-exchange membrane electrodialysis

摘要：

介绍了离子膜电解法处理环氧丙烷氯醇化尾气碱洗废水的实验研究。在不添加任何化学物质的前提下,其COD去除率可达到78%,同时可回收废水中的碱,迅速降低废水pH,碱回收率可达到73.55%,可为后续生化单元起到良好的预处理作用。

关键词: 氯醇法, 碱洗废水, 离子膜电解法

CLC Number:

X703.1

Chen Huiting, Kang Juan, Chen Huifei, Zhao Yuming. Treatment of alkali washing was tewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide by ion-exchange membrane electrodialys is[J]. INDUSTRIAL WATER TREATMENT, 2007, 27(3): 46-48.

陈慧婷, 康娟, 陈慧妃, 赵玉明. 离子膜电解法处理环氧丙烷氯醇化尾气碱洗废水[J]. 工业水处理, 2007, 27(3): 46-48.

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Treatment of alkali washing was tewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide by ion-exchange membrane electrodialys is

离子膜电解法处理环氧丙烷氯醇化尾气碱洗废水

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Treatment of alkali washing was tewater from the propylene chlorohydrination tail gas in the preparation of propylene-oxide by ion-exchange membrane electrodialys is

离子膜电解法处理环氧丙烷氯醇化尾气碱洗废水

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