title

روش سطح-پاسخ و کاربرد آن برای بهینه کردن حذف یون های آمونیوم از محلول های آبی با استفاده از پامیس به عنوان یک جاذب ارزان قیمت و طبیعی

مرادی, مسعود and فضل زاده دویل, مهدی and پیرصاحب, مقداد and منصوری, یداله and خسروی, طوبی and شرفی, کیومرث (1395) روش سطح-پاسخ و کاربرد آن برای بهینه کردن حذف یون های آمونیوم از محلول های آبی با استفاده از پامیس به عنوان یک جاذب ارزان قیمت و طبیعی. Archives of Environmental Protection ــ 42 (2). pp. 33-43. شاپا 4810-2083

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Official URL: http://www.degruyter.com/view/j/aep.2016.42.issue-...


Title

Response surface methodology (RSM) and its application for optimization of ammonium ions removal from aqueous solutions by pumice as a natural and low cost adsorbent

English Abstract

This research was conducted to study the adsorption of ammonium ions onto pumice as a natural and low-cost adsorbent. The physico-chemical properties of the pumice granular were characterized by X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Modeling and optimization of a NH4+ sorption process was accomplished by varying four independent parameters (pumice dosage, initial ammonium ion concentration, mixing rate and contact time) using a central composite design (CCD) under response surface methodology (RSM). The optimum conditions for maximum removal of NH4+ (70.3%) were found to be 100 g, 20 mg/l, 300 rpm and 180 min, for pumice dosage, initial NH4+ ion concentration, mixing rate and contact time. It was found that the NH4+ adsorption on the pumice granular was dependent on adsorbent dosage and initial ammonium ion concentration. NH4+ was increased due to decrease the initial concentration of NH4 and increase the contact time, mixing rate and amount of adsorbent.

Item Type:Article
زبان سند : انگلیسی
نویسنده اول :مسعود مرادی
نویسنده :مهدی فضل زاده دویل
نویسنده مسئول :کیومرث شرفی
Additional Information:Impact Factor (2015) 0.919 Indexed in: ISI, Scopus, Chemical Abstracts Service, DOAJ, Google Scholar, Index Copernicus,
کلیدواژه ها (انگلیسی):Pumice; ammonium ion; adsorption; response surface methodology
Subjects:WA Public Health > 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
ID Code:7688
Deposited By: MR Mahdi Fazlzadeh
Deposited On:02 May 1395 09:49
Last Modified:02 May 1395 09:49

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