کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9623846 | 456580 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Residual oil and suspended solid removal using natural adsorbents chitosan, bentonite and activated carbon: A comparative study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Palm oil mill effluent (POME), which contains about 4000Â mg/l of residual oil, has been chosen to remove its residual oil using three types of adsorbents. Jar-test method has been used to identify the best adsorbent to remove the residual oil from POME. Chitosan was compared to activated carbon and bentonite as a potential residual oil remover. Chitosan showed the best removal compared to the other adsorbents for all the parameters studied. Chitosan could successfully remove 99% of residual oil and minimize the suspended solid content to a value of 25Â mg/l from POME at a dosage of 0.5Â g and employing a mixing time of 30Â min, a mixing rate of 100Â rpm, sedimentation for 30Â min and a pH value of ranging from 4.0 to 5.0. For activated carbon and bentonite, the optimum dosages were 8.0Â g and 10.0Â g/l, respectively, 30Â min of mixing time at 150Â rpm, 80 and 60Â min of settling time, respectively, and pH of 4.0-5.0 to obtain the same percentage of removal as performed by chitosan. Activated carbon and bentonite can only reduce the suspended solid values up to 35 and 70Â mg/l, respectively, at the optimized conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 108, Issues 1â2, 1 April 2005, Pages 179-185
Journal: Chemical Engineering Journal - Volume 108, Issues 1â2, 1 April 2005, Pages 179-185
نویسندگان
A.L. Ahmad, S. Sumathi, B.H. Hameed,