Analysis of UV-Visible Absorption Spectrum on the Decolorization of Industrial Wastewater by Disinfection
HUANG Xin1, WANG Long-yong1, GAO Nai-yun2*, LI Wei-guo3
1. School of Environment and Chemical Engineering, Shanghai University, Shanghai 200444, China 2. State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, China 3. Shanghai TaoPu Wastewater Treatment Plant, Shanghai 200070, China
Abstract：The UV-Visible absorption spectrum of industrial wastewater was explored to introduce a substituting method determining the color of water, and to compare the decolorization efficacy of different disinfectants. The results show that the visible absorption spectrum(350～600 nm), instead of ultraviolet absorption spectrum, should be applied to characterize the color of wastewater. There is a good correlation between the features of visible absorption spectrum and the true color of wastewater. Both ozone and chlorine dioxide has a better decolorization performance than chlorine. However, the color of chlorine dioxide itself has a negative effect on decolorization. The changes in the features of visible absorption spectrum effectively reflect the variations in the color of wastewater after disinfection.
黄 鑫1，王隆勇1，高乃云2*，李伟国3 . 工业污水消毒脱色的紫外-可见吸收光谱分析[J]. 光谱学与光谱分析, 2012, 32(10): 2739-2742.
HUANG Xin1, WANG Long-yong1, GAO Nai-yun2*, LI Wei-guo3 . Analysis of UV-Visible Absorption Spectrum on the Decolorization of Industrial Wastewater by Disinfection . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(10): 2739-2742.
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