Removal of VOCs from Sudden Polluted Raw Water by Air Stripping

被引：0

作者：

林明利 ^{[1
]}

殷晓桃 ^{[2
]}

崔福义 ^{[1
]}

赵志伟 ^{[1
]}

姜琦 ^{[3
]}

机构：

[1] State Key Laboratory of Urban Water Resource and Environment,School of Municipal and Environmental Engineering,Harbin Institute of Technology

[2] Pan-China Construction Group

[3] Environmental Development Center of Ministry Environmental Protection

来源：

Journal of Donghua University(English Edition) | 2011年 / 28卷 / 05期

基金：

国家高技术研究发展计划(863计划);

关键词：

volatile organic compounds(VOCs); air stripping; emergency water treatment; Henry’s law constant(H); removal;

D O I：

10.19884/j.1672-5220.2011.05.003

中图分类号：

TU991.2 [净水工程（给水处理）];

学科分类号：

0815 ;

摘要：

Volatile organic compounds(VOCs) are widely used in various industrial processes and generate water pollutions.VOCs removal from raw water is an important task for waterworks to guarantee drinking water security.The removal of VOCs such as chlorobenzene(CB) and ethylbenzene(EB) from raw water by air stripping was investigated under various conditions,including the variation of temperature(5-30℃),pH(3.5-10.5),and air/water ratio(10-60).The air stripping removal efficiency of VOCs decreased with VOCs concentration declining in water.And Henry’s law constant was demonstrated as an indicator of the estimation of VOCs removal efficiency for air stripping.The effects of temperature and the ratio of air and water were found to play a great role in VOCs removal,but the effect of pH seemed to be negligible.This study demonstrates that air stripping provides a promising opportunity in removing VOCs in drinking water treatment,especially for the relatively high concentration of VOCs.

引用

页码：456 / 459

页数：4

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