Biomass accumulation effect on the hydrodynamics of an alkaline biotrickling filter treating dimethyl disulfide vapors: experimental determination towards a dynamic model description
Biomass accumulation effect on the hydrodynamics of an alkaline biotrickling filter treating dimethyl disulfide vapors: experimental determination towards a dynamic model description
Autor
Arellano, L.; Dorado, A.D.; Gamisans, X.; Revah, S.
Tipus d'activitat
Presentació treball a congrés
Nom de l'edició
5th International Conference on Biotechniques for Air Pollution Control and Bioenergy
Any de l'edició
2013
Data de presentació
2013-09-11
Llibre d'actes
Biotechniques for air pollution control & bioenergy : biotechniques-2013 : proceedings of the 5th International Conference on Biotechniques for Air Pollution Control and Bioenergy
Pàgina inicial
267
Pàgina final
274
Resum
The biomass accumulation effect on the performance of a biotrickling filter (BTF) has been assessed in termps of the hydrodynamics and the void space available to gas treatment changes. It was determined tht the available space for gas treatment inside the BTF had been reduced to almost half of that calculated initially when packing was biofilm free. Assuming that flow of liquid through a BTF can be described by the dispersion plug flow model, dispersion coefficients (Ddisp) of 0,12 and 0,33 m2 ...
The biomass accumulation effect on the performance of a biotrickling filter (BTF) has been assessed in termps of the hydrodynamics and the void space available to gas treatment changes. It was determined tht the available space for gas treatment inside the BTF had been reduced to almost half of that calculated initially when packing was biofilm free. Assuming that flow of liquid through a BTF can be described by the dispersion plug flow model, dispersion coefficients (Ddisp) of 0,12 and 0,33 m2 h-1 were determined when BTF was packed with clean and colonized packing respectively. These coefficients and other parameters assessed experimentally were used in a mathematical model to describe the dimethyl disulfide (DMDS) odors removal along the BTF height. The model that considered dispersion for the liquid flow fitted better to the experimental data, suggesting the importance of the axial dispersion which should be considered when modelling.
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