Dicamba Degradation Using O3/UV Process in Aqueous Solution

Lan Chen

doi:10.4028/www.scientific.net/AMR.941-944.1124

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 941-944Dicamba Degradation Using O3/UV Process in Aqueous...

Dicamba Degradation Using O₃/UV Process in Aqueous Solution

Abstract:

In order to control pesticide pollution, the degradation of dicamba in aqueous solution was investigated in a bubble reactor in laboratory using separate UV, separate O₃, O₃/UV systems. The experimental results show that UV has a synergistic effect on ozonation. The synergy factor of O₃/UV system is calculated to be 1.96. The degradation of dicamba follows pseudo-first-order kinetics. Considering that the composition of actual water is complex, chloride, nitrate, carbonate and bicarbonate ions, common ions appeared in actual water, were selected to add to reaction solution in O₃/UV system. Chloride and nitrite ions have inhibiting effect. Carbonate and bicarbonate ions have promoting effect. In O₃/UV system, different impurity ions have different influence on dicamba degradation with small amount addition.

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Periodical:

Advanced Materials Research (Volumes 941-944)

Pages:

1124-1127

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.941-944.1124

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Online since:

June 2014

Authors:

Lan Chen

Keywords:

Degradation, Dicamba, Herbicides, Ozone, UV

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