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三相三维电极反应器中芳香类污染物荧光光谱特征的变化规律

The Variation Trend of Fluorescence Characteristics of Aromatic Organic Pollutants in The Three-phase Three-dimensional Electrode Reactor

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摘要

采用三维荧光技术研究ABS(Acrylonitrile-butadiene-styrene)树脂生产废水的荧光指纹特征及其在三相三维电极反应器的处理过程中的变化规律, 研究了极板间电压对废水中芳香类污染物分解转化的影响。研究结果表明, ABS废水的荧光中心在激发波长和发射波长分别为225 nm和340 nm处, 其荧光强度最强, 为主峰(Peak A);激发波长和发射波长分别为275 nm和340 nm处的荧光次强, 为次强峰(Peak B)。荧光指纹特征(IPeakA/IPeakB)为8.1。当极板间电压较高时, 废水的化学需氧量(Chemical Oxygen Demand, COD)去除率和总荧光强度去除率均较高, 能够高效地分解转化废水中的芳香类污染物。在不同的极板间电压下, 废水的总荧光强度去除率与COD去除率均呈很好的线性关系, 且相关系数均高达0.96以上, 即通过监测废水荧光强度的变化就能够快速高效地检测分析废水中芳香类有机污染物的分解转化效率。

Abstract

Excitation-emission matrix (EEM) technology was used to study fluorescence properties of acrylonitrile-butadiene-styrene (ABS) resin wastewater with its variation trend in the treatment process. The effect of different voltage for the degradation of aromatic compounds was studied significantly. The results show that two fluorescence center of ABS resin wastewater load at the wavelength of λex/λem=225/340 nm (Peak A) and λex/λem=275/340 nm (Peak B), respectively, and the ratio of IPeakA/IPeakB is 8.1. A higher chemical oxygen demand (COD) and total fluorescence intensity removal efficiencies under a higher voltage, and the aromatic compounds of ABS wastewater can be decomposed efficiently. Under the different voltage, there is a good linear correlation for COD and total fluorescence intensity removal efficiencies. And their correlation coefficients are all over than 0.96, therefore the decomposition efficiency of aromatic compounds for ABS wastewater can be determined and analyzed efficiently using EEM technology.

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中图分类号:O482.31

所属栏目:光谱分析

基金项目:国家水体污染控制与治理科技重大专项(2008ZX07207-004)资助项目

收稿日期:2010-08-17

修改稿日期:2010-09-03

网络出版日期:0001-01-01

作者单位    点击查看

赖波:中国环境科学研究院 水污染控制技术研究中心, 北京100012北京师范大学 水科学研究院, 北京100875
周岳溪:中国环境科学研究院 水污染控制技术研究中心, 北京100012
李志军:寰球工程项目管理(北京)有限公司项目管理部, 北京100101
刘建超:寰球工程项目管理(北京)有限公司项目管理部, 北京100101

联系人作者:赖波(lingyun012@163.com)

备注:赖波(1981- ), 男, 四川什邡人, 博士, 主要从事水污染控制技术方面的研究。

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引用该论文

LAI Bo,ZHOU Yue-xi,LI Zhi-jun,LIU Jian-chao. The Variation Trend of Fluorescence Characteristics of Aromatic Organic Pollutants in The Three-phase Three-dimensional Electrode Reactor[J]. Chinese Journal of Luminescence, 2011, 32(3): 300-306

赖波,周岳溪,李志军,刘建超. 三相三维电极反应器中芳香类污染物荧光光谱特征的变化规律[J]. 发光学报, 2011, 32(3): 300-306

被引情况

【1】杜树新,杜阳锋,袁之报. 三维荧光光谱的特征区域选择方法. 发光学报, 2012, 33(3): 341-345

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