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Removal of bentazone pesticide from aqueous solutions by electro-oxidation method
Joint Authors
Yavuz, Yusuf
Uthman, Muhammad Aziz
Source
ZANCO Journal of Pure and Applied Sciences
Issue
Vol. 33, Issue 5 (31 Oct. 2021), pp.116-121, 6 p.
Publisher
Salahaddin University-Erbil Department of Scientific Publications
Publication Date
2021-10-31
Country of Publication
Iraq
No. of Pages
6
Main Subjects
Engineering & Technology Sciences (Multidisciplinary)
Abstract EN
The kinetics of the electro-oxidation degradation of prepared aqueous solutions containing bentazone as a model compound of the thiadiazine group of pesticides was studied in the lab.
The oxidation process was conducted under galvanostatic polarization in natural model media using boron-doped diamond (BDD) cathode and anode.
Chemical oxygen demand (COD) estimation along the electro-oxidation treatment processing allowed the assessment of kinetic of organic compounds decay as well as the instantaneous current efficiency.
The obtained data reflected that the degradation of bentazone pesticide is significantly dependent on initial amount of bentazone pesticide, current density and electrolytes concentration.
COD removal follows a pseudo first-order kinetic and the electro-oxidation process was under the control of mass transport within the range studied, regardless the conditions of experimental.
The COD removal rate increases with applied current density until 20 mA/cm2 and decreases for higher values.
Two different concentrations supporting electrolyte (5mM, 10mM) were used.
The rate of degradation increased significantly with increasing electrolyte concentration.
The best obtained conditions for COD removal efficiency on the BDD electrode to degrade bentazone solutions (COD= 91.18 %) include operating at 20 mA/cm2 and 10 mM Na2 SO4 as supporting electrolyte.
This arrangement and condition allow to approximately complete degradation of bentazone in just 80 min.
A decrease in the relative toxicity index value along the electro-oxidation indicate toxic compounds disappearance.
The initial toxicity EC50 (5 min) and (15min) were decrease by 81% and 94%
American Psychological Association (APA)
Uthman, Muhammad Aziz& Yavuz, Yusuf. 2021. Removal of bentazone pesticide from aqueous solutions by electro-oxidation method. ZANCO Journal of Pure and Applied Sciences،Vol. 33, no. 5, pp.116-121.
https://search.emarefa.net/detail/BIM-1388885
Modern Language Association (MLA)
Uthman, Muhammad Aziz& Yavuz, Yusuf. Removal of bentazone pesticide from aqueous solutions by electro-oxidation method. ZANCO Journal of Pure and Applied Sciences Vol. 33, no. 5 (2021), pp.116-121.
https://search.emarefa.net/detail/BIM-1388885
American Medical Association (AMA)
Uthman, Muhammad Aziz& Yavuz, Yusuf. Removal of bentazone pesticide from aqueous solutions by electro-oxidation method. ZANCO Journal of Pure and Applied Sciences. 2021. Vol. 33, no. 5, pp.116-121.
https://search.emarefa.net/detail/BIM-1388885
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 121
Record ID
BIM-1388885