Nashrieh Shimi va Mohandesi Shimi Iran

Nashrieh Shimi va Mohandesi Shimi Iran

Performance Evaluation of a Biotrickling Filter for the Removal of Ethylbenzene from Polluted Air Stream

Document Type : Research Article

Authors
Masumeh Shaeyan
Sabaheh Barikbin
Seyed Mohammad Mehdi Dastgheib
ALi Ziaedini
Research Institute of Petroleum Industry (RIPI), West Blvd of Azadi Complex, P.O. Box 14665-137 Tehran, I.R. IRAN
Abstract
The removal of ethylbenzene from a contaminated air stream was studied in a lab scale biotrickling filter. Plastic pall rings were used as packing for immobilization of microorganisms and the biofilter was inoculated with a mixture of compost extract and ethylbenzene-contaminated water from Assaluyeh region. The active volume of biofilter was 4.7 liter and empty bed resistance time was considered 1 min. Operating phase lasted 95 days, during which inlet air flow rate was constant at 4.7 L/min and ethylbenzene concentration in inlet flow was increased from 0.5 to 2.5 g /m3. At the end of this phase, maximum elimination capacity of 133 g/m3h was obtained with removal efficiency of 93%. The results showed good performance of the biotrickling filter to remove ethylbenzene from the gas phase and promise operational applications of these bioreactors in various industries
Keywords
Biotrickling filter
Ethylbenzene
Pall ring
biofilm
Compost

Subjects

[1] Hinojosa-Reyes, M., Rodríguez-González V., Arriaga S., Enhancing Ethylbenzene Vapors Degradation in a Hybrid System Based on Photocatalytic Oxidation UV/TiO 2–In and a Biofiltration Process, Journal of Hazardous Materials, 209: 365-371 (2012).
[2] Ravi R., Philip L., Swaminathan T., Comparison of Biological Reactors (Biofilter, Biotrickling Filter and Modified RBC) for Treating Dichloromethane Vapors, Journal of Chemical Technology and Biotechnology, 85(5): 634-639 (2010).
[3] صالح احمدی, ر.، حلاج، ر.، ضمیر، س.م., مدل سازی فرایند حذف هگزان در فیلتر زیستی قارچی با دمای متغیر و بارگذاری پیوسته و ناپیوسته، نشریه شیمی و مهندسی شیمی ایران، (2)31: 83 تا 95 (1391).
[4] Mudliar S., Giri B., Padoley K., Satpute D., Dixit R., Bhatt P., Pandey R., Juwarkar A., Vaidya A., Bioreactors for Treatment of VOCs and Odours–A Review, Journal of Environmental Management, 91(5): 1039-105 (2010).
[5] Álvarez-Hornos F., Gabaldon C., Soria M., Martin M., Marzal P., Penya-roja J.M., Biofiltration of Ethylbenzene Vapours: Influence of the Packing Material, Bioresource Technology, 99(2): 269-276 (2008).
[6] Gallastegui G., Barona A., Rojo N., Gurtubay L., Elias A., Comparative Response of Two Organic Biofilters Treating Ethylbenzene and Toluene After Prolonged Exposure, Process Safety and Environmental Protection, 91(1): 112-122 (2013).
[7] Kennes C., Veiga M.C., "Air Pollution Prevention and Control: Bioreactors and Bioenergy", John Wiley & Sons (2013).
[8] Namini M., Heydarian S.M., Bonakdarpour B., Farjah A., Removal of H2S from Synthetic Waste Gas Streams Using a Biotrickling Filter, Iranian Journal Chemical Engineering, 5: 40-51 (2008).
[9] Iranpour R., Cox H., Deshusses M., Schroeder E., Literature Review of Air Pollution Control Biofilters and Biotrickling Filters for Odor and Volatile Organic Compound Removal, Environmental Progress, 24(3): 254-267 (2005).
[10] Kennes C., Rene E.R., Veiga M.C., Bioprocesses for Air Pollution Control, Journal of Chemical Technology and Biotechnology, 84(10): 1419-1436 (2009).
[11] Wang L., Rong C., Cheng Y., Huang J., Yang H., zeng G., Lu L., He S., Enhanced Removal of Ethylbenzene from Gas Streams in Biotrickling Filters by Tween-20 and Zn (II), Journal of Environmental Sciences, 26(12): 2500-2507 (2014).
[12] Mohamed M., Ouki S.K., Kinetic and Removal Mechanisms of Ethylbenzene from Contaminated Solutions by Chitin and Chitosan. Water, Air, & Soil Pollution, 220(1): 131-140 (2011).
[13] Santos V.P., Bakker J.J.W., Krevutzer M.T., Kapteinjn F., Gascon J., Transport Limitations During Phase Transfer Catalyzed Ethyl-Benzene Oxidation: Facts and Fictions of Halide Catalysis, ACS Catalysis, 2(7): 1421-1424 (2012).
[14] Tranfo G., "Benzene and its Derivatives: New Uses and Impacts on Environment and Human Health". Nova Science Publishers Incorporated (2012).
[15] Mpanias C.J., Baltzis B.C., An Experimental and Modeling Study on the Removal of Mono‐Chlorobenzene Vapor in Biotrickling Filters, Biotechnology and Bioengineering, 59(3): 328-343 (1998).
[16] Deshusses M.A., Cox H.H.J., "Biotrickling Filters for Air Pollution Control, in Encyclopedia of Environmental Microbiology", John Wiley & Sons, Inc (2003).
[17] Zamir S.M., Babatabar S., Shojaosadati S.A., Styrene Vapor Biodegradation in Single-and Two-Liquid Phase Biotrickling Filters Using Ralstonia Eutropha, Chemical Engineering Journal, 268: 21-27 (2015).
[18] Kennes C., Veiga M.C., Inert Filter Media for the Biofiltration of Waste Gases-Characteristics and Biomass Control, Reviews in Environmental Science and Biotechnology, 1(3): 201-214 (2002).