Atrazine Degradation in the Ultraviolet (UV) Irradiation/Hydrogen Peroxide (H2O2) Treatment

Jing Pan

doi:10.4028/www.scientific.net/AMR.726-731.1823

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731Atrazine Degradation in the Ultraviolet (UV)...

Atrazine Degradation in the Ultraviolet (UV) Irradiation/Hydrogen Peroxide (H₂O₂) Treatment

Abstract:

The degradation of atrazine in UV/H₂O₂ advanced oxidation process was studied. The combined UV/H₂O₂ process could effectively degraded atrazine, which is attributed to the strong oxidation strength of hydroxyl radical produced. Results show that atrazine degradation rate was affected by H₂O₂ concentration and initial atrazine concentration. The degradation rate constant (k) increased with H₂O₂ concentration from 20 to 80 mg/L and decreased when H₂O₂ concentration exceeded 120 mg/L. The degradation rate of atrazine decreased with increasing atrazine concentration. NO₃^-¡¢Cl^-¡¢HCO₃^- have inhibitory action on atrazine degradation. The higher inorganic anions concentration was, the stronger inhibitory action would be. When their concentrations were 0.5¡¢5 and 20 mmol/L, respectively, their inhibitory action order is HCO₃^-> NO₃^->Cl^- all the time.

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Periodical:

Advanced Materials Research (Volumes 726-731)

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1823-1826

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https://doi.org/10.4028/www.scientific.net/AMR.726-731.1823

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August 2013

Authors:

Jing Pan

Keywords:

Atrazine, Degradation, Inorganic Anions, UV/H₂O₂

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