Efficacy study on Advanced Oxidation Processes (AOPs) application for pesticides removal from water with emphasis on their cost aspects
Message:
Abstract:
Background And Aims
Removal of recalcitrance pollutants from water by Advanced Oxidation Processes (AOPs) has been recently suggested by many researchers worldwide. However، being costly is the most important problem which prevent from doing such a mthod. The aim of this study was the assessment of AOPs usage for removal of pesticides from water with focus on their cost aspects.
Method
This research was an experimental study. The experimental analysis were carried out on 150 samples that had been determined based on minor factorial plan. Batch reactors including Ultrasonic (US)، Ultraviolet (UV)، Ultraviolet and Zinc Oxide (UV/ZnO)، Ultraviolet، Hydrogen Peroxide (UV/H2O2) were used for Diazinon and Malathion removal. The samples were analyzed by Gas Chromatography Mass Spectroscopy (GC-Mass)، Varian 3800 and the energy costs were calculated by the empirical equation.
Results
The results showed that the highest consumption of energy (i. e. 5898. 87 and 4430. 37 kWh/m3 for Diazinon and Malathion، respectively) was for the US method and the lowest consumption of energy (i. e. 224. 29 and 167. 01 kWh/m3 for Diazinon and Malathion، respectively) was achieved for the UV/ H2O2 method. The results showed that the hybrid processes UV/ H2O2 way the most economical way to remove the pesticides Diazinon and Malathion from water. Also، the removal of the pesticide Malathion was economically better than the pesticide Diazinon.
Conclusion
The results of this study can pave the way the using of the process of advanced fusion in a syncrets procedure as a treatment for water and wastewater on an industrial scale in the water and wastewater industry.
Language:
Persian
Published:
Journal of Shahrekord University of Medical Sciences, Volume:15 Issue: 5, 2013
Pages:
80 to 89
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