发光学报, 2011, 32 (3): 300, 网络出版: 2011-03-31
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
光谱学 ABS废水 三相三维电极反应器 三维荧光光谱 spectroscopy ABS wastewater three-phase three-dimensional electrode reactor excitation-emission matrix
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.
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. 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.