title: Optimization of biofiltration for odor control: model calibration, validation, and applications.
abstract: A dynamic model that describes the biofiltration process for hydrogen sulfide removal from wastewater treatment plant air emissions was calibrated and validated using pilot- and full-scale biofilter data obtained from the Cedar Rapids (Iowa) Water Pollution Control Facilities. After calibration, the model was found to predict the dynamic effluent concentrations of the pilot- and full-scale biofilters well, with the measured data falling within 58 to 80% of the model output values. In addition, the model predicted the trend of the field data, even under field conditions of changing input concentration and at effluent concentrations below 1 ppm by volume. The model demonstrated that increasing gas residence time and temperature and decreasing influent concentration decreases effluent concentration. In addition, model simulations showed that a longer residence time is required to treat dynamic loading increases, indicating that biofilter design should account for the maximum influent concentration. These results can be used to help design and operate biofilters for controlling odorous and hazardous air emissions.
authors: Department of Civil and Environmental Engineering, Michigan Technological University, Houghton 49931, USA.
authors: Ronald W
authors: RW
authors: Martin
authors: Hebi
authors: H
authors: Li
authors: James R
authors: JR
authors: Mihelcic
authors: John C
authors: JC
authors: Crittenden
authors: Donald R
authors: DR
authors: Lueking
authors: Christopher R
authors: CR
authors: Hatch
authors: Patrick
authors: P
authors: Ball
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis / Q000517:prevention & control; D000465:Algorithms; D018441:Biofilms; D018533:Biomass; D002138:Calibration; D005374:Filtration / Q000379:methods; D006862:Hydrogen Sulfide / Q000378:metabolism; D008954:Models, Biological; D009812:Odorants / Q000032:analysis*; D010865:Pilot Projects; D015203:Reproducibility of Results; D012903:Smell; D013457:Sulfur Compounds / Q000378:metabolism; D013696:Temperature; D013855:Thiobacillus / Q000254:growth & development; D014865:Waste Disposal, Fluid / Q000379:methods; D018508:Water Purification / Q000379:methods
chemical_list: D000393:Air Pollutants; D013457:Sulfur Compounds; D006862:Hydrogen Sulfide