کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
582390 | 1453166 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Treatment of xylene polluted air using press mud-based biofilter
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Treatment of xylene polluted air using press mud-based biofilter Treatment of xylene polluted air using press mud-based biofilter](/preview/png/582390.png)
چکیده انگلیسی
In the present work, biofiltration of xylene vapors has been investigated on a laboratory scale biofilter packed with press mud as filter material inoculated with activated sludge from pharmaceutical industry. Four various gas flow rates, i.e. 0.03, 0.06, 0.09 and 0.12Â m3Â hâ1, were tested for inlet xylene concentration ranging from 0.2 to 1.2Â gmâ3. The biofilter proved to be highly efficient in the removal of xylene at a gas flow rate of 0.2Â m3Â hâ1 corresponding to a gas residence time of 2.8Â min. For all the tested inlet concentrations, the removal efficiency decreased for high gas flow rates. For all the tested gas flow rates, a decrease in the removal efficiency was noticed for high xylene inlet concentration. The follow-up of carbon dioxide concentration profile through the biofilter revealed that the mass ratio of carbon dioxide produced to the xylene removed was approximately 2.52, which confirms complete degradation of xylene if one considers the fraction of the consumed organic carbon used for the microbial growth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 162, Issues 2â3, 15 March 2009, Pages 981-988
Journal: Journal of Hazardous Materials - Volume 162, Issues 2â3, 15 March 2009, Pages 981-988
نویسندگان
V. Saravanan, N. Rajamohan,