Sonochemical kinetic model of diazinon and malathion pesticides degradation in aqueous solution

Dehghani, M. and Fadaei, A. (2013) Sonochemical kinetic model of diazinon and malathion pesticides degradation in aqueous solution. Indian Journal of Science and Technology, 6 (1). pp. 3876-3881.

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Abstract

In this work, elimination two types of organophosphorus pesticides, diazinon and malathion spiked in aqueous solution by ultrasonic irradiation was investigated. Six different initial concentrations of diazinon and malathion (100, 300, 500, 200, 400, and 600 μg/L respectively) at different pH (3, 7, 9) and time (30, 45, 60, 90, 105 min) were investigated. Results showed that diazinon and malathion could be effectively and rapidly degraded by ultrasonic irradiation, and kinetics of both pesticides was strongly influenced by time, initial concentration and pH value. The results showed optimum condition degradation achieved at pH 3 and 9 for diazinon and malathion, respectively. Kinetic modeling applied for the obtained results showed that the degradation of diazinon and malathion by ultrasound followed first - order and second - order model.

Item Type: Article
Additional Information: cited By 3
Uncontrolled Keywords: Aqueous solution, Diazinon, Malathion, Pesticide, Sonochemical kinetic, Ultrasonic
Subjects: WA Public Health > Public Health Education WA.18 > WA 30 Social, Economic, and Environmental factor in public health
WA Public Health > WA 30 Social, Economic, and Environmental factor in public health
Divisions: Faculty of Health > Department of Environmental Health
Depositing User: zahra bagheri .
Date Deposited: 09 Aug 2017 05:58
Last Modified: 09 Aug 2017 05:58
URI: http://eprints.skums.ac.ir/id/eprint/2731

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