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Interaction between diazinon and nitrate pollutant through membrane technology | ||
| Journal of Applied Research in Water and Wastewater | ||
| مقاله 5، دوره 1، شماره 1، خرداد 2014، صفحه 18-22 اصل مقاله (994.09 K) | ||
| نوع مقاله: Research Paper | ||
| نویسندگان | ||
| Peyman Mahmoodi1؛ Mehrdad Farhadian* 2؛ Ali Reza Solaimany Nazar2؛ Amin Noroozi2 | ||
| 1Department of Chemical Engineering, University of Isfahan, Isfahan, Iran | ||
| 2Department of Chemical Engineering, University of Isfahan, Isfahan, Iran. | ||
| چکیده | ||
| The efficiency of diazinon (as insecticides) and nitrate (related to nitrogen fertilizer) removal from contaminated water is investigated through NF membrane technique. The effects of nitrate concentration (40-160 mg/l), diazinon concentration (10-1000 µg/l) and pH (5-9) on the efficiency of a commercial polyamide nanofilter membrane at a constant pressure of (800 KPa) are investigated. The response surface method (Box-Behenken design) is applied in design of experiment. As the diazinon concentration and pH are enhanced, the contaminant removal efficiency increases from 85% to 90%; while nitrate concentration has an opposite effect (removal efficiency reduces about 10%). The regression models obtained for nitrate and diazinon rejection show good fitting to the experimental results (r-squared equal to 94% and 98%, respectively). The models are able to predict the evolution of diazinon and nitrate as a function of concentration and pH at a constant pressure. | ||
| کلیدواژهها | ||
| Contaminated water؛ Diazinon؛ Nitrate؛ Agricultural wastewater؛ Environment؛ Nanofiltration | ||
| مراجع | ||
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