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حذف کروم شش ظرفیتی از محلول های آبی با استفاده از اسپند پودری و گرانولی

خسروی, رسول ، فضل زاده دویل, مهدی ، باریک بین, بهنام ، تقی زاده, علی اکبر (1392) حذف کروم شش ظرفیتی از محلول های آبی با استفاده از اسپند پودری و گرانولی. Applied Surface Science ــ 292 . ص.ص.670-677. شاپا 0169-4332

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عنوان انگليسي

Removal of hexavalent chromium from aqueous solution by granular and powdered Peganum Harmala

خلاصه انگلیسی

In this paper, batch removal of hexavalent chromium from aqueous solutions by granular and powdered seeds of Peganum Harmala was investigated. The Peganum Harmala seeds were collected and after beating slowly, separating and cleaning the Harmala seeds done using a sieve. Batch adsorption studies were performed in 100 ml Erlenmeyer flasks inside an incubator container. The main process parameters considered were pH, initial Cr(VI) concentration for PPH and GPH, adsorbent dose, and contact time. Cr(VI) was measured at a wavelength of 540 nm using a UV–vis T80+ spectrophotometer. The adsorption data were fitted well by Freundlich isotherm. The result shows that the maximum removal of Cr(VI) was observed at pH 1.5 for both adsorbents. Also, by increase adsorption dose, adsorption capacity of Cr(VI) decreased but the chromium adsorption rate increased. The mount of adsorbed Cr(VI) onto both adsorbents increased with an increase in the contact time but by increases initial concentration of Cr(VI), the mount of adsorbed Cr(VI) onto both adsorbents decreased. The results indicate that the powdered Peganum Harmala can be effective adsorbent than the granular Peganum Harmala for the removal of Cr(VI) from aqueous solution.

نوع سند :مقاله
زبان سند : انگلیسی
نویسنده اول :رسول خسروی
نویسنده مسئول :مهدی فضل زاده دویل
اطلاعات اضافی :Impact Factor: 2.112 Indexed in: Science Citation Index , Science Citation Index Expanded Current Contents - Physical, Chemical & Earth Sciences Current Contents - Engineering, Computing & Technology , Aluminium Industry Abstracts , Chemical Abstracts El Compendex Plus , Engineered Materials Abstracts , Engineering Index , INSPEC , Metals Abstracts , Scopus
کلید واژه ها (انگلیسی):Adsorption ; Isotherm ; Peganum Harmala ; Wastewater treatment
موضوعات :WA بهداشت عمومي > WA 30 بهداشت محيط
WA بهداشت عمومي > WA 30 بهداشت محيط
بخش های دانشگاهی :دانشکده بهداشت > گروه بهداشت محیط
کد شناسایی :5158
ارائه شده توسط : مهندس مهدی فضل زاده دویل
ارائه شده در تاریخ :06 بهمن 1392 08:21
آخرین تغییر :06 بهمن 1392 08:22

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