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مقالات فارسیISIکنفرانسهاژورنالها

FIXED-BED ADSORPTION OF CONGO RED ONTO TEA WASTE IN THE PRESENCE OF Fe۲O۳ NANOPARTICLES: AN EXPERIMENTAL AND MODELING STUDY

محل انتشار: مجله علوم و فن آوری نفت، دوره: 3، شماره: 2
سال انتشار: 1392
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 59

فایل این مقاله در 10 صفحه با فرمت PDF قابل دریافت می باشد

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این مقاله:
https://civilica.com/doc/1858672

شناسه ملی سند علمی:

JR_JPSTR-3-2_005

تاریخ نمایه سازی: 29 آذر 1402

چکیده مقاله:

In this study, tea waste (TW) is employed for the removal of Congo red (CR) from aqueous solutions in a fixed-bed column at ۳۰ °C. The breakthrough curves of the adsorption process of CR on TW at three different flow rates are determined. The results revealed that the breakthrough curves were dependent on flow rates in a manner in which a lower flow rate was in favor of the CR adsorption in the column-mode process. As the flow rate increased from ۴.۶ to ۶.۶ mL/min, the amount of dye uptake capacity decreased from ۱.۷۸ to ۱.۵۳ mg/g. The effect of the presence of Fe۲O۳ on the adsorption of CR on TW is also studied at ۳۰ °C. The results showed that the presence of nanoparticles increased the adsorption uptake of CR by about ۳۲%. Moreover, four novel models are developed for the prediction of the breakthrough curves resulted from the experimental data. The results of the models were in good agreement with experimental data (R۲>۰.۹۹). The statistical parameters confirm the suitability of the models.

کلیدواژه ها:

Tea Waste ، Congo Red ، Adsorption ، Fixed-bed Column ، Breakthrough Modeling ، Fe۲O۳ Nanoparticles

نویسندگان

Mohammad Foroughi-dahr

Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box ۱۱۳۶۵-۴۵۶۳, Tehran, Iran

Hossein Abolghasemi

Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box ۱۱۳۶۵-۴۵۶۳, Tehran, Iran\Oil and Gas Center of Excellence, University of Tehran, Tehran, Iran

Mohamad Esmaili

Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box ۱۱۳۶۵-۴۵۶۳, Tehran, Iran

Hooman Fatoorehchi

Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box ۱۱۳۶۵-۴۵۶۳, Tehran, Iran

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