SONODEGRADATION OF ORGANOPHOSPHORUS PESTICIDES IN WATER

Dehghani, M.H. and Fadaei, A. (2013) SONODEGRADATION OF ORGANOPHOSPHORUS PESTICIDES IN WATER. ENVIRONMENT PROTECTION ENGINEERING, 39 (4). pp. 5-14.

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Abstract

Organophosphorus pesticides (OPPs), such as diazinon and malathion, are widely found in water resources. When absorbed by human organisms, OPPs are very toxic mainly because they deactivate acetyl cholinesterase. In the present study, the degradation of diazinon and malathion was investigated. The experiments were conducted for diazinon concentrations of 100, 300, 500 mu g/dm(3) and malathion concentrations of 200, 400, 600 mu g/dm(3). Sonochemical examination was done using an ultrasonic reactor at 130 kHz and 500 W for five times, and then the amount of the pesticide in a sample was measured by the gas chromatography with a flame ionization detector (GC-FLD). The highest degradation of malathion and diazinon by the sonolysis process occurred at pH 9 and 3, respectively. The study demonstrates that malathion and diazinon could be effectively degraded by ultrasonic irradiation.

Item Type: Article
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: 08 Aug 2017 03:47
Last Modified: 08 Aug 2017 03:47
URI: http://eprints.skums.ac.ir/id/eprint/2561

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