تهدف هذه الدراسة إلى إلقاء الضوء على استخدام الطحالب البحرية و رقائق البولي بروبلين لإزالة النفط الخام من مياه البحر السطحية. حدد زمن الامتصاص الأمثل و السعة الامتصاصية لهذه المواد في حمام نفط/ماء و نفط فقط بدون ماء لثلاثة أنواع من النفط ذات لزوجة مختلفة. ارتبطت القدرة على إزالة النفط من سطح مياه البحر ببنية المادة الماصة و خواص سطحها إضافة إلى كمية و خواص النفط و بشكل خاص لزوجته.
بينت الدراسة أن زيادة زمن الامتصاص لا يؤثر على السعة الامتصاصية للمواد المدروسة بوجود نوعي النفط ذي اللزوجة المنخفضة و المتوسطة (LV و MV)، بينما ازدادت السعة الامتصاصية لهذه المواد عند زيادة زمن الامتصاص إلى 30 دقيقة بوجود الفيول HV. تجاوزت القدرة الامتصاصية للطحلب Enteromorpha القدرة الامتصاصية للطحالب البحرية الأخرى، بينما سجلت رقائق البولي بروبلين أعلى سعة امتصاصية. ازدادت السعة الامتصاصية للمواد المدروسة بشكل عام مع ازدياد لزوجة النفط. تشابهت السعات الامتصاصية للمواد المدروسة بوجود النفط فقط مع السعات الامتصاصية لهذه المواد بوجود النفط و الماء.
تبين هذه النتائج إمكانية استبدال المواد المصنعة المستخدمة لإزالة النفط من الأوساط البحرية باستخدام الطحالب البحرية كونها ذات سعة امتصاصية عالية نسبياً.
The aim of this study is to highlight the potential use of marine algae as well as polypropylene for the removal of crude oil from surface seawater.
The determination of optimal sorption time and sorption capacity of the materials in oil/water bath and oil bath without water in presence of three oils of different viscosity were investigated. The capacity of oil removal from seawater was related to structure and surface properties as well as oil amount and oil properties especially, its viscosity.
The results revealed that the extension of absorption time does not influence absorption capacity of the examined sorbents in presence of both oils of low and middle viscosity (LV and MV). Nevertheless, the sorption capacity was increased by extending the absorption time to 30 min. For high viscose oil (HV). The sorption capabilities of Enteromorpha exceeded those observed for all of the other algae, while polypropylene fiber showed the highest capacity. Overall, the sorption capacity of the studied sorbents increased with increasing oil viscosity. The absorption capacities of studied materials in the oil bath and oil/water bath were comparable.
The results suggested that substitution of synthetic oil sorbents used in Syria by marine algae is possible in oil removal, which have relatively high sorption capacity.
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We screening for antimicrobial substances production from marine algae of
Syria. We presented results of ١٦ algal species tested by their lipide and
aqueous extracts agaimst Gram’s negative and positive bacteria, as well as one
fungous species.
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The study focused in this research to determine the trace of some heavy metal
elements (Copper Cu, Cadmium Cd, Lead Pb) in some types of marine macroalgae
scattered on the shore of the city of Banias during 2014, using atomic absorption
spectrosco
The changes in coefficient of distribution of lead and cupper has been studied in
system with two phases, liquid water contaminated with lead and copper-solid (natural
Phosphate of Syria) correlation of the following factors: Time of mixing phases,
The biological role of chitosan which was prepared by chemical method from
shrimp waste Penaeus semisulcatus and the outer skeleton for marine crab Portunus
pelagicus in some industrial and agricultural applications were studied. The
concentration
This study aims to use the ash formed from the burning of firewood and the different
pruning residues to remove the hardness of water
Soda ash was characterized using different techniques, including XRD,flame
spectroscopy , volume titration and ot