| Title: | Effect of operating temperature on transient behaviour of a biofilter treating waste-air containing n-butanol vapour during intermittent loading |
| Author(s): | Feizi F; Nasernejad B; Zamir SM; |
| Address: | "a Chemical Engineering Department, Shahrood Branch , Islamic Azad University , Shahrood , Iran. b Chemical Engineering Department , Amirkabir University of Technology , Tehran , Iran. c Biotechnology Group, Faculty of Chemical Engineering , Tarbiat Modares University , Tehran , Iran" |
| DOI: | 10.1080/09593330.2015.1105302 |
| ISSN/ISBN: | 1479-487X (Electronic) 0959-3330 (Linking) |
| Abstract: | "Transient-state removal of n-butanol vapour was investigated in a biofilter (BF) packed with compost and lava rock at different operating temperatures in the range of 30-45 degrees C under intermittent loading (8 h per day). Adsorption on the inactive bed and biodegradation in the microbial-active bed were studied separately at an empty bed residence time (EBRT) of 1 min and inlet concentrations of 2.6-3.2 g m(-3), respectively. According to the transient experiments, the highest removal efficiency (RE) around 86% was obtained at 40 degrees C due to a high microbial activity. Comparison of CO2 production and pure adsorption of n-butanol showed that adsorption was the major mechanism in the start-up of BF at each operating condition; although the impact of adsorption declined as temperature increased from 30 degrees C to 45 degrees C. The process was reaction limited at all operating conditions. Based on the determination of stoichiometric coefficients of n-butanol biodegradation, the CO2 production level was significantly lower than that of the chemical oxidation process which resulted in a decrease in environmental pollution" |
| Keywords: | "1-Butanol/*isolation & purification Adsorption Air Pollutants/*isolation & purification Biodegradation, Environmental Bioreactors/microbiology Environmental Restoration and Remediation/*instrumentation/methods Equipment Design Filtration/*instrumentation/;" |
| Notes: | "MedlineFeizi, Farzaneh Nasernejad, Bahram Zamir, Seyed Morteza eng England 2015/10/29 Environ Technol. 2016; 37(10):1179-87. doi: 10.1080/09593330.2015.1105302. Epub 2015 Nov 23" |
