Document Detail

Kinetic evaluation of contaminants removal in a three-stage biological air filter.
MedLine Citation:
PMID:  22775059     Owner:  NLM     Status:  Publisher    
Biofiltration is a cost-effective technology for removing air contaminants from animal facilities. Kinetic analysis can aid in understanding and designing the process, but has not been performed on full-scale filters treating complex mixtures. In this study, kinetics was investigated in a full-scale biological filter treating air pollutants from a pig facility. Due to the high air flow rates used in the filter, both a plug flow model and a model based on complete mixing were tested with respect to kinetic order and Michaelis-menten kinetics. Application of these models only gave poor to moderate agreement with air filter removal data. Two alternative kinetic models (Stover-Kincannon model and Grau second-order model) adopted from wastewater biofiltration process analysis were introduced to analyze contaminants removal in the biological air filter. Data analysis demonstrated the applicability of these two models with a high degree of precision on contaminants removal in the biological air filter. Whereas the Stover-Kincannon model demonstrated that pollutant removal rates were related to the mass loading rates, the Grau second-order kinetic model indicated that the removal efficiencies were dependent on air loading rates. The kinetic data can therefore be used for comparing biofilter performance and for design purposes.
Dezhao Liu; Michael Jørgen Hansen; Lise Bonne Guldberg; Anders Feilberg
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-9
Journal Detail:
Title:  Environmental science & technology     Volume:  -     ISSN:  1520-5851     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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