Combined advanced oxidation and biological treatment processes for the removal of pesticides from aqueous solutions

Journal of Hazardous Materials
Walid K Lafi, Z Al-Qodah

Abstract

Advanced oxidation processes were combined with biological treatment processes in this study to remove both pesticides and then the COD load from aqueous solutions. It was found that O(3) and O(3)/UV oxidation systems were able to reach 90 and 100%, removal of the pesticide Deltamethrin, respectively, in a period of 210 min. The use of O(3) combined with UV radiation enhances pesticides degradation and the residual pesticide reaches zero in the case of Deltamethrin. The combined O(3)/UV system can reduce COD up to 20% if the pH of the solution is above 4. Both pesticide degradation and COD removal in the combined O(3)/UV system follow the pseudo-first-order kinetics and the parameters of this model were evaluated. The application of the biological treatment to remove the bulk COD from different types of feed solution was investigated. More than 95% COD removal was achieved when treated wastewater by the O(3)/UV system was fed to the bioreactor. The parameters of the proposed Grau model were estimated.

References

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Citations

Jan 1, 2012·Journal of Environmental Sciences (China)·Tao FangLixia Liao
Feb 19, 2011·Journal of Hazardous Materials·J A SilesM A Martín
Nov 3, 2009·Journal of Hazardous Materials·K Y Foo, B H Hameed
Jan 3, 2018·Applied Biochemistry and Biotechnology·Krushi Hingurao, Anuradha Nerurkar
Nov 8, 2018·Photochemistry and Photobiology·Eduardo GaticaWalter A Massad
May 18, 2019·Environmental Science and Pollution Research International·Mir Moslem Rahbar HashemiHadi Modaberi
Oct 9, 2020·Materials·Emile Salomon Massima MoueleLeslie Felicia Petrik
Jan 13, 2021·International Journal of Environmental Research and Public Health·Muhammad SyafrudinAmal M Al-Mohaimeed
Oct 16, 2020·Environmental Science and Pollution Research International·Muhammad Saiful Islam KhanYun-Ji Kim
Jul 3, 2021·International Journal of Molecular Sciences·Bayan KhalafSubhi Samhan

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