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Ecotoxicology and environmental safety v.147, 2018년, pp.919 - 925   SCI SCIE
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Response surface methodology modeling to improve degradation of Chlorpyrifos in agriculture runoff using TiO2 solar photocatalytic in a raceway pond reactor

Amiri, Hoda (Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ) ; Nabizadeh, Ramin (Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ) ; Silva Martinez, Susana (Centro de Investigación en Ingeniería y Ciencias Aplicadas, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, Morelos, Mexico ) ; Jamaleddin Shahtaheri, Seyed (Department of Occupational Health Engineering, School of Public Health, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran ) ; Yaghmaeian, Kamyar (Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ) ; Badiei, Alireza (School of Chemistry, College of Science, University of Tehran, Tehran, Iran ) ; Nazmara, Shahrokh (Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran ) ; Naddafi, Kazem (Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Science ) ;
  • 초록  

    Abstract This paper deals with the use of a raceway pond reactor (RPR) as an alternative photoreactor for solar photocatalytic applications. Raceway pond reactors are common low-cost reactors which can treat large volumes of water. The experiments were carried out with TiO 2 in the agriculture effluent spiked with Chlorpyrifos (CPF) at circumneutral pH. The Response Surface Methodology (RSM) was used to find the optimum process parameters to maximize CPF oxidation from the mathematical model equations developed in this study using R software. By ANOVA, p-value of lack of fit > 0.05 indicated that, the equation was well-fitted. The theoretical efficiency of CPF removal, under the optimum oxidation conditions with UV solar energy of around 697 ± 5.33 lux, was 84.01%, which is in close agreement with the mean experimental value (80 ± 1.42%) confirming that the response model was suitable for the optimization. As far as the authors know, this is the first study of CPF removal using RPR in agriculture runoff at circumneutral pH. Highlights Chlorpyrifos degradation was investigated in a natural agriculture runoff. Raceway pond was used for the first time for CPF removal in runoff. RSM has an important role to enhance removal efficiency.


  • 주제어

    Chlorpyrifos .   TiO2 catalyst .   POPs .   RPR .   Solar .   RSM.  

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