Combined Solar advanced oxidation and PAC adsorption for removal of pesticides from industrial wastewater

نویسندگان

  • Mohamed Gar Alalm
  • Ahmed Tawfik
  • Shinichi Ookawara
چکیده

The efficiency of solar heterogeneous TiO2 photocatalysis and homogeneous photo-Fenton reaction for removal of Lambda Cyhalothrin, Chlorpyrifos and Diazinon from pesticide wastewater industry was investigated. The effluent quality was not complying for discharge into sewerage network. Therefore, adsorption of the remaining portions of pesticides using powdered activated carbon (PAC) was assessed. The combined processes provided almost complete removal of pesticide fractions i.e. 97% for Lambda Cyhalothrin, 91% for Chlorpyrifos, and 100% for Diazinon. The experimental data were further analyzed by the Freundlich and the Langmuir isotherm. Pseudo first order and pseudo-second order kinetics models were tested for the experimental results.

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تاریخ انتشار 2015