文献类型：期刊文献

中文题名：焦化废水二级生化出水中有机污染物的氧化特性

英文题名：OXIDATIVE CHARACTERISTICS OF ORGANIC FRACTIONS IN SECONDARY EFFLUENT OF COKING WASTEWATER

作者：龚剑丽[1];孙贤波[1];刘勇弟[1];胡兰芳[1];何伟聪[1]

机构：[1]华东理工大学资源与环境工程学院,上海200237

年份：2008

卷号：27

期号：2

起止页码：193

中文期刊名：环境化学

外文期刊名：Environmental Chemistry

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：高等学校博士学科点专项科研基金资助(20060251014)

语种：中文

中文关键词：焦化废水;有机污染物;03氧化法;UV/O3氧化法

外文关键词：coking wastewater, organic matters, ozonation, UV/O3 oxidative.

摘要：考察了O3氧化法与UV/O3氧化法对焦化废水二级生化出水中溶解性有机物的去除效果,以及二级出水中有机污染物的氧化特性.结果表明,O3氧化法对于二级出水的UV254值具有较高的去除效率,30min内即可达75.7%,但对COD和DOC的去除效果很差,150min的去除率仅为37.1%和33.7%.而UV/O3氧化法对二级生化出水UV254,COD和DOC均具有良好的去除效果,150min时的去除率分别为95.3%,90.2%和77.8%.经过O3氧化法处理后,疏水性物质的浓度明显下降,而弱疏水有机物与亲水性有机物浓度有所上升;UV/O3氧化法处理对疏水性有机物和弱疏水有机物均具有良好的去除效果,而亲水性有机物浓度仅得到部分降低.
Removal of dissolved organic matters in secondary effluent of coking wastewater by 03 and UV/O3 treatment and oxidative characteristics of various organic fractions were investigated. The results showed that 03 treatment could effectively lower UV254 level of secondary effluent and its removal efficiency could reach 75.7% within 30 minutes. However, it had less effect on COD and DOC removal, only about 37. 1% and 33.7%, respectively. While UV/O3 treatment had good removal effect on UV254, COD and DOC, and their removal efficiencies were 95.3%, 90. 2% and 77. 8%. After oxidation treatment, level and distribution of organic fractions in secondary effluent greatly changed. After O3 treatment, level of hydrophobics declined greatly, while contrarily level of hydrophilics and transphilics increased. UV/O3 treatment can effectively remove hydrophobic and transphilic fractions, while it only removed a part of hydrophilics.