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Degradation of Organophosphorus Pesticide in a Packed-Bed Plasma Reactor: Effects of Operating Parameters and Kinetics Study

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Abstract:

The degradation effectiveness and reaction kinetics of representative organophosphorus (OP) pesticide in a packed-bed plasma reactor have been studied. Important parameters, including peak voltage, pulse frequency, gas-flow rate, initial concentration, diameter of catalyst particles, and thickness of catalyst bed which influences the removal efficiency, were investigated. Experimental results indicated that rogor removal efficiency as high as 80% can be achieved at 35 kV with the gas flow rate of 800 mL/min and initial concentration of 11.2 mg/m3. The removal efficiency increased with the increase of pulsed high voltage, and pulse frequency, the decrease of the diameter of catalyst particles and the thickness of catalyst bed. Finally, a model was established to predict the degradation of the rogor, which generally can simulate the experimental measurements to some degree.

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Periodical:

Advanced Materials Research (Volumes 781-784)

Pages:

1637-1645

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.781-784.1637

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Online since:

September 2013

Authors:

Ting Jun Ma, Yi Qing Xu

Keywords:

Kinetic Model, Plasma-Catalyst, Rogor Decomposition

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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