Abstract




 
   

IJE TRANSACTIONS B: Applications Vol. 32, No. 2 (February 2019) 229-235    Article in Press

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  FURTHER STUDY OF ADSORPTION OF CRUDE OILS ONTO ACETYLATED CORN SILK AND ITS KINETICS AND EQUILIBRIUM ISOTHERM
 
R. Asadpour, N. B Sapari, M. Hasnain Isa and S. Kakooei
 
( Received: November 13, 2018 – Accepted in Revised Form: January 03, 2019 )
 
 

Abstract    Oil spills from tanker or oil well have detrimental effects on environment and economy. One of the most economical and efficient methods for oil spill clean-up is mechanical extraction by sorbents which are not only the safest methods but also the least expensive of spill control. The potential use of agricultural by-products such as corn silk for adsorbent of crude oil from water systems was published in our previous work. In the current research, the percentage of acetylation and hydrophobicity of the treated corn silk were measured. The reflux time for the acetylation process was one of the primary parameters that enhanced the acetylation process. The characteristics of the enhanced corn silk was determined at different reflux times by FT-IR spectroscopy. The experimental data followed the pseudo second order kinetic model. The study suggested the Freundlich model show good correlation coefficients for the adsorption of crude oil on acetylated corn silk.

 

Keywords    Keyword; Degree of hydrophobicity; Degree of acetylation; Oil sorption capacity (OSC); Kinetic study; Equilibrium isotherms;

 

چکیده   

نفت خام از مخزن یا نفت نیز تاثیرات سوء بر محیط زیست و اقتصاد دارد. یکی از مؤثرترین و کارآمدترین روشهای پاکسازی نشت نفت، استخراج مکانیکی توسط جاذبهای است که نه تنها امن ترین روش، بلکه کمترین هزینه کنترل آلودگی واز بین رفتن آن است. استفاده بالقوه از محصولات جانبی کشاورزی مانند ابریشم ذرت برای جاذب نفت خام از سیستم های آب در کار قبلی ما منتشر شد. در تحقیق حاضر، درصد استیلیت و هیدروفوبیتی ابریشم ذرت تحت عمل اندازه گیری شد. زمان رفلکس برای پروتئین استیلینگ یکی از پارامترهای اصلی است که فرآیند استیلیت را افزایش می دهد. خصوصیات افزایش ابریشم ذرت در زمانهای مختلف رفلاکس با استفاده از طیف سنجی FT-IR تعیین شد. شرایط بهینه عوامل عامل؛ pH و دما بر ظرفیت جذب روغن (OSC) ابریشم ذرت بررسی شده است. داده های تجربی به دنبال مدل جنبشی مرتبه مرتبه دوم بود. این مطالعه نشان می دهد که مدل فریندلیچ ضریب همبستگی خوبی را برای جذب نفت خام بر روی ابریشم ذرت آستیل شده را نشان می دهد.

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