Using Sonophotodegradation Technology for Removal of Organophosphorus Pesticides in Aqueous Solution

Fadaei, A. and Dehghani, M.H. and Rahimi Foroushani, A. and Sadeghi, M. (2013) Using Sonophotodegradation Technology for Removal of Organophosphorus Pesticides in Aqueous Solution. ASIAN JOURNAL OF CHEMISTRY, 25 (13, A). pp. 7517-7521.

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Abstract

Advanced oxidation processes (AOPs) such as sonolysis and sonophotolysis (sonophotodegradation) may be used to remove organic pollutants from an aqueous solution. Malathion and diazinon are both of highly effective organophosphorus pesticides that are used extensively in agriculture. The objective of this study was to investigate degradation of these pesticides (diazinon and malathion) using sonophotodegradation technology. The operational parameters used in the study to evaluate the processes were irradiation time, pH and initial concentrations of pesticide and the synergistic effect was also documented. Gas chromatography mass spectroscopy (GC-MS) was used to analyze the pesticides. Results showed that sonophotolysis was more effective than individual sonolysis and that degradation of both pesticides increased with a decrease in the initial concentration. The sonophotodegradation rate of the malathion pesticide was more than that of diazinon but the solonysis rate of both pesticides was about equal, hence photolysis was used effectively to remove the pesticides from water.

Item Type: Article
Uncontrolled Keywords: Pesticides; Advanced oxidation processes; Organophosphorus; Sonophotodegradation; Water
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: 07 Aug 2017 08:44
Last Modified: 07 Aug 2017 08:44
URI: http://eprints.skums.ac.ir/id/eprint/2527

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