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نخستین کنفرانس ملی چالشهای محیط زیست: صنعت و معدن سبز


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عنوان انگلیسی	Comparative Investigation of the removal of oil from contaminated wastewater using thermo-chemically modified lignocellulosic biomass

چکیده انگلیسی مقاله	The volume of oil-contaminated wastewater generated from petrochemical industries and various oil fields is increasing rapidly. The discharge of such oily wastewater endangers terrestrial and aquatic ecosystems due to the high organic load and toxicity of the oily components. Currently, there are several technologies available for the treatment of oily wastewater among which adsorption was observed to be a promising technique for the removal of oil emulsions from wastewater. In this study, adsorption of oily wastewater was investigated using different types of adsorbents namely, modified acid pyrolyzed date seed (APD) and base pyrolyzed date seed (BPD) based adsorbents. The effects of pH, oil dose, temperature, and contact time were investigated for all the adsorbents. The results of the study showed that the percentage of oil removal increased with increasing contact time. It was observed that base modified activated date seed resulted in 83% removal of oil. Both APD and BPD showed a high percentage removal of 92.9 % and 94.3 % respectively at a lower acidic pH of 2. The adsorption of oily wastewater onto both APD and BPD is consistent with the pseudo-second-order kinetic model. The Langmuir isotherm is more accurate to represent sorption by APD whereas Freundlich isotherms were found to better fit the adsorption equilibrium data for BPD.

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نویسندگان مقاله	مونا العجمی \| Muna Al Ajmi Engineering Department, International Maritime College Oman, Suhar, Oman عهود الهمدانی \| Ahoud AlHamadani Engineering Department, International Maritime College Oman, Suhar, Oman انتنه مسفین یننه \| Anteneh Mesfin Yeneneh Engineering Department, International Maritime College Oman, Suhar, Oman طاهره جعفری \| Tahereh Jafary Engineering Department, International Maritime College Oman, Suhar, Oman

نشانی اینترنتی	http://ncec.modares.ac.ir/browse.php?a_code=A-10-234-1&slc_lang=fa&sid=1
فایل مقاله	فایلی برای مقاله ذخیره نشده است
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زبان مقاله منتشر شده	en
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