Removal of CI Reactive Red 2 by low pressure UV/chlorine advanced oxidation

被引：22

作者：

Wu, Qianyuan ^{[1
]}

Li, Yue

Wang, Wenlong

Wang, Ting

Hu, Hongying

机构：

[1] Tsinghua Univ, Sch Environm, Environm Simulat & Pollut Control State Key Joint, Beijing 100084, Peoples R China

来源：

JOURNAL OF ENVIRONMENTAL SCIENCES | 2016年 / 41卷

关键词：

Textile wastewater; Azo dye; Ultraviolet irradiation; Chlorine; Advanced oxidation process; AZO-DYE; AQUEOUS-SOLUTION; ELECTRICAL ENERGY; WASTE-WATER; DECOLORIZATION; DEGRADATION; CHLORINE; UV; PHOTOLYSIS; KINETICS;

D O I：

10.1016/j.jes.2015.06.013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Azo dyes are commonly found as pollutants in wastewater from the textile industry, and can cause environmental problems because of their color and toxicity. The removal of a typical azo dye named C.I. Reactive Red 2 (RR2) during low pressure ultraviolet (UV)/chlorine oxidation was investigated in this study. UV irradiation at 254 nm and addition of free chlorine provided much higher removal rates of RR2 and color than UV irradiation or chlorination alone. Increasing the free chlorine dose enhanced the removal efficiency of RR2 and color by UV/chlorine oxidation. Experiments performed with nitrobenzene (NB) or benzoic acid (BA) as scavengers showed that radicals (especially UOH) formed during UV/chlorine oxidation are important in the RR2 removal. Addition of HCO3- and Cl- to the RR2 solution did not inhibit the removal of RR2 during UV/chlorine oxidation. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

引用

页码：227 / 234

页数：8

共 42 条

[1] Electrical energy determination for an azo dye decolorization and mineralization by UVM/H2O2 advanced oxidation process [J].

Aleboyeh, Azam ;

Olya, Mohammad E. ;

Aleboyeh, Hamid .

CHEMICAL ENGINEERING JOURNAL, 2008, 137 (03) :518-524

[2]

[Anonymous], 2013, CHIN STAT YB ENV, P29

[3] Kinetics of decolorization of an azo dye in UV alone and UV/H2O2 processes [J].

Behnajady, M. A. ;

Modirshahla, N. ;

Fathi, H. .

JOURNAL OF HAZARDOUS MATERIALS, 2006, 136 (03) :816-821

[4] Investigations of reactions of selected azaarenes with radicals in water. 2. Chlorine and bromine radicals [J].

Beitz, T ;

Bechmann, W ;

Mitzner, R .

JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (34) :6766-6771

[5] Determination of the quantum yields of the potassium ferrioxalate and potassium iodide-iodate actinometers and a method for the calibration of radiometer detectors [J].

Bolton, James R. ;

Stefan, Mihaela I. ;

Shaw, Ping-Shine ;

Lykke, Keith R. .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2011, 222 (01) :166-169

[6] Figures-of-merit for the technical development and application of advanced oxidation technologies for both electric- and solar-driven systems - (IUPAC Technical Report) [J].

Bolton, JR ;

Bircher, KG ;

Tumas, W ;

Tolman, CA .

PURE AND APPLIED CHEMISTRY, 2001, 73 (04) :627-637

[7] THE DEGRADATION OF DYESTUFFS .3. INVESTIGATIONS OF THEIR ULTIMATE DEGRADABILITY [J].

BROWN, D ;

HAMBURGER, B .

CHEMOSPHERE, 1987, 16 (07) :1539-1553

[8] CRITICAL-REVIEW OF RATE CONSTANTS FOR REACTIONS OF HYDRATED ELECTRONS, HYDROGEN-ATOMS AND HYDROXYL RADICALS (.OH/.O-) IN AQUEOUS-SOLUTION [J].

BUXTON, GV ;

GREENSTOCK, CL ;

HELMAN, WP ;

ROSS, AB .

JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA, 1988, 17 (02) :513-886

[9] Decolorization of azo dye Orange G by aluminum powder enhanced by ultrasonic irradiation [J].

Cai, Mei Qiang ;

Wei, Xiao Qin ;

Song, Zhi Jun ;

Jin, Mi Cong .

ULTRASONICS SONOCHEMISTRY, 2015, 22 :167-173

[10] A solar-driven UV/Chlorine advanced oxidation process [J].

Chan, Po Yee ;

El-Din, Mohamed Gamal ;

Bolton, James R. .

WATER RESEARCH, 2012, 46 (17) :5672-5682

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