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Information Journal Paper

Title

DECONTAMINATION OF HEXAVALENT CHROMIUM AND TRI-ETHYL PHOSPHATE STIMULANTS THROUGH PHOTACATALYTIC OXIDATION

Pages

  863-871

Abstract

 In this paper, the photocatalytic decontamination of hexavalent chromium and tri-ethyl phosphate, two important wastewater contaminants, are studied by the ULTRAVIOLET / NANO-TITANIUM DIOXIDE PROCESS. The pH value and synergic effect between the oxidation of tri-ethyl phosphate and the reduction of hexavalent chromium were investigated in different concentrations of tri-ethyl phosphate and hexavalent chromium. Furthermore, the effects of ultraviolet and nano-titanium dioxide were investigated in a solution which contained tri-ethyl phosphate and hexavalent chromium. Results of ADSORPTIONs showed that hexavalent chromium was adsorbed better in acidic pH while the better ADSORPTION for tri-ethyl phosphate was occurred in alkalinity pH. The reduction rate of hexavalent chromium was higher in acidic solutions while it was obtained at natural pH for tri-ethyl phosphate. In co-ADSORPTION of hexavalent chromium and triethyl phosphate pollutants, tri-ethyl phosphate slightly increased ADSORPTION of hexavalent chromium, but hexavalent chromium had no influence on the ADSORPTION of tri-ethyl phosphate on nano-titanium dioxide particles. In contrast, triethyl phosphate has an improving effect on the reduction reaction rate of hexavalent chromium which increases with the interaction of the concentration of tri-ethyl phosphate in mixture. The same is true for the oxidation rate of tri-ethyl phosphate.

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    Cite

    APA: Copy

    FATHIZADEH, M., FAKHRAEE, H., & AROUJALIAN, A.. (2011). DECONTAMINATION OF HEXAVALENT CHROMIUM AND TRI-ETHYL PHOSPHATE STIMULANTS THROUGH PHOTACATALYTIC OXIDATION. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 8(4 (32)), 863-871. SID. https://sid.ir/paper/285408/en

    Vancouver: Copy

    FATHIZADEH M., FAKHRAEE H., AROUJALIAN A.. DECONTAMINATION OF HEXAVALENT CHROMIUM AND TRI-ETHYL PHOSPHATE STIMULANTS THROUGH PHOTACATALYTIC OXIDATION. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2011;8(4 (32)):863-871. Available from: https://sid.ir/paper/285408/en

    IEEE: Copy

    M. FATHIZADEH, H. FAKHRAEE, and A. AROUJALIAN, “DECONTAMINATION OF HEXAVALENT CHROMIUM AND TRI-ETHYL PHOSPHATE STIMULANTS THROUGH PHOTACATALYTIC OXIDATION,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 8, no. 4 (32), pp. 863–871, 2011, [Online]. Available: https://sid.ir/paper/285408/en

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