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International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472
EISSN: 1735-2630
Vol. 11, No. 1, 2014, pp. 183-190
Bioline Code: st14019
Full paper language: English
Document type: Case Report
Document available free of charge

International Journal of Environment Science and Technology, Vol. 11, No. 1, 2014, pp. 183-190

 en Effect of empty bed residence time on biotrickling filter performance: case study—triethylamine
Mirmohammadi, M.; Bayat, R.; Shirazi, H. Keshavarzi & Sotoudeheian, S.

Abstract

In this study, a laboratory-scale biotrickling filter (BTF) is used to remove Triethylamine (TEA) from gaseous wastes. The BTF is made of stainless steel with a height of 210 cm and an internal diameter of 21 cm packed with lava rocks. TEA elimination pattern was evaluated by changing empty bed residence times (EBRTs). The maximum elimination capacity (EC) has been determined to be 87 g/m3/h. At all EBRTs 52, 31, 20, and 10 s, contaminant transferring from gas phase to liquid was more than the EC. Also, the removal efficiencywas 100% for amass loading of 100 g/m3/h.While the liquid recirculation velocity of 3.466 m3/m2/h was maintained, the flow rate was adjusted to 60, 100, 156, and 312 L/ min. The results show that due to the high solubility of TEAin water for all the EBRTs, TEA can be solved in the circulated liquid and then be degraded gradually by microorganisms. Therefore, the least EBRT of 10 s is more appropriate.

Keywords
Air pollution; Biotrickling filter; Empty bed residence time (EBRT); Triethylamine

 
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