Photodegradation of an azo dye of the textile industry

被引:4
作者
Cisneros, RL
Espinoza, AG
Litter, MI
机构
[1] Unidad Actividad Quim, Ctr Atomico Constitiuyentes, Comis Nacl Energia Atom, RA-1650 Buenos Aires, DF, Argentina
[2] Univ Nacl Ingn, Fac Ciencias, Lab Peliculas Delgadas, Escuela Prof Quim, Lima 31139, Peru
关键词
AOTs; UV/hydrogen peroxide; decolorization;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An advanced oxidation treatment, UV/H2O2, was applied to an azo dye, Hispamin Black CA, widely used in the Peruvian textile industry. Rates of color removal and degradation of the dye have been evaluated. A strongly absorbing solution was completely decolorized after 35 min of treatment, and after 60 min an 82% reduction of the total organic carbon (TOC) was obtained. It has been found that the degradation rate increased until an optimum value, beyond which the reagent exerted an inhibitory effect. The degradation rate was also function of pH. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:393 / 399
页数:7
相关论文
共 19 条
  • [1] THE PHOTOLYSIS OF HYDROGEN PEROXIDE AT HIGH LIGHT INTENSITIES
    BAXENDALE, JH
    WILSON, JA
    [J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1957, 53 (03): : 344 - 356
  • [2] Oxidation of polynuclear aromatic hydrocarbons in water .3. UV radiation combined with hydrogen peroxide
    Beltran, FJ
    Ovejero, G
    Rivas, J
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1996, 35 (03) : 883 - 890
  • [3] Bircher K., 1997, J. Adv. Oxid. Technol., V2, P435, DOI [10.1515/JAOTS-1997-0311, DOI 10.1515/JAOTS-1997-0311]
  • [4] BOLTON JR, 1994, AQUATIC AND SURFACE PHOTOCHEMISTRY, P467
  • [5] *CALG CARB OX TECH, 1996, AOT HDB
  • [6] CALVERT G, 1967, PHOTOCHEMISTRY, P452
  • [7] Treatability study of organic and colour removal in desizing/dyeing wastewater by UV/US system combined with hydrogen peroxide
    Fung, PC
    Huang, Q
    Tsui, SM
    Poon, CS
    [J]. WATER SCIENCE AND TECHNOLOGY, 1999, 40 (01) : 153 - 160
  • [8] GLAZE WH, 1987, ENVIRON SCI TECHNOL, V21, P224, DOI 10.1021/es00157a001
  • [9] GLAZE WH, 1987, OZONE-SCI ENG, V9, P335
  • [10] A NEW SENSITIVE CHEMICAL ACTINOMETER .2. POTASSIUM FERRIOXALATE AS A STANDARD CHEMICAL ACTINOMETER
    HATCHARD, CG
    PARKER, CA
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1956, 235 (1203): : 518 - 536