کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4579149 1630092 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Natural attenuation of pesticide water contamination by using ecological adsorbents: Application for chlorinated pesticides included in European Water Framework Directive
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Natural attenuation of pesticide water contamination by using ecological adsorbents: Application for chlorinated pesticides included in European Water Framework Directive
چکیده انگلیسی

SummaryIn this work, a series of experiments were performed to demonstrate the potential use of natural organic substances (NOS) as an ecological technique to prevent pesticide contamination of ground water resources. A preliminary test has been carried out for determining the potentialities of ten NOS in the elimination of alachlor, aldrin, atrazine, chlorpyrifos, chlorfenvinphos, dieldrin, alpha-endosulfan, endrin, hexachlorobenzene, beta-HCH, gamma-HCH (lindane), simazine and trifluralin. The best adsorbents that present higher removal efficiency were date and olives stones, and in minor measurement Raphanus raphanistrum and Cistus ladaniferus. Experimental results showed that the pH and temperature of pesticide solutions negatively affect the adsorption process. According to adsorption kinetic data, 8 h were considered as the equilibrium time for realizing adsorption isotherms. Adsorption data were fit with Freundlich isotherm model which describes better the adsorption process. The Kf values depended mainly on the nature of each adsorbent and ranged from 4.53 for Eucalyptus gomphocephala to 13.54 for date stones.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hydrology - Volume 364, Issues 1–2, 15 January 2009, Pages 175–181
نویسندگان
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