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Register a new userThe dynamic characteristics of adsorption of phenol by activated carbon prepared from walnuts crust
الخصائص الحركية لامتزاز الفينول على الفحم الفعال المصنع من قشر الجوز
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Added by
Tishreen University ورقة بحثية
Publication date
2013
fields
marine Chemistry
and research's language is
العربية
Authors
لينا الوعري( باحث )
Created by
Shamra Editor
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تهدف هذه الدراسة إلى توصيف الظروف التشغيلية لمرشح الفحم الفعال المحضر من قشر الجوز و المنشط كيميائياً بكلوريد الزنك و المفحم عند الدرجة 600 C و ذلك بالاعتماد على منحنيات الاختراق. طبقت فرضية انتقال الكتلة (MTZ) بهدف الحصول على تصميم تشغيلي للامتزاز على السرير الثابت و التي تساعد على تحديد متغيرات التشغيل على هذا السرير و ذلك عند ثلاثة تراكيز ابتدائية للفينول (20, 40, 60ppm). درست المتغيرات التشغيلية لعمود الامتزاز بحساب السعة الجزئية لمنطقة انتقال الكتلة (F) و ارتفاع منطقة انتقال الكتلة Hz كذلك تم حساب عدد مكافئات الانتقال (Nz) و الكمية الفعلية للفينول التي أزيلت على سرير ثابت من الكربون الفعال عند لحظة الاختراق ABP.
The objective of the present work is to determine the operating conditions of an activated carbon filter, based on the characteristics of breakthrough curves. In order to properly design and operate fixed-bed adsorption processes, we apply the concept of the mass transfer zone (MTZ) that helps to obtain the evolutions of the operating parameters of the fixed-bed. Phenol solutions were prepared in three initial concentrations of phenol (20, 40, 60 ppm). The experimental data were analyzed by calculating fractional capacity (F), the height of (MTZ) (HZ), the number of unit transfer equivalent (NZ), the amount of phenol eliminated by the bed of activated carbon at the breakthrough (ABP).
References used
Laszlo, K.; Podkos, C. P.; Dabrowski, A. Heterogeneity Of Activated Carbons With Different Surface Chemistry In Adsorption Of Phenol From Aqueous Solutions. Applied Surface Science, Vol. 252, 2006, 5752–5762
Polat, H.; Molva, M.; Polat, M. Capacity And Mechanism Of Phenol Adsorption On Lignite. Int. J. Miner. Process, Vol. 79, 2006, 264–273
Houari, M.; Hamdi, B.; Brendle, J.;. Bouras, O.; Bollinger, J. C.; Baudu, M. Dynamic Sorption Of Ionizable Organic Compounds (Iocs) And Xylene From Water Using Geomaterial-Modified Montmorillonite. Journal Of Hazardous Materials, Vol. 147, 2007, 738–745
Laszl,O. K. Adsorption From Aqueous Phenol And Aniline Solutions On Activated Carbons With Different Surface Chemistry. Colloids And Surfaces A: Physicochem. Eng. Aspects, Vol. 265, 2005, 32–39
Babi, K. G.; Koumenides, M.; Nikolaou, A. D.; Makri, C. A.; Tzoumerkas, F. K.; Lekkas, T. D. Pilot Study Of The Removal Of Thms, Haas And Doc From Drinking Water By Gac Adsorption, Desalination, Vol. 210, 2007, 215–224
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