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. Water Environ. Res., 74, 17 (2002).

Evaluation of the performance of structured mixed packing and inert packing materials in toluene biotrickle-filtration

“…This result indicates that the additional nutrients and high water/toluene sorption capacity of the mixed packing materials facilitated the rapid recovery of the toluene degrading capacity. The same characteristics were noted by other authors [13,16,[37][38][39].…”

Hydrogen sulphide removal from corroding concrete: Comparison between surface removal rates and biomass activity

“…The uptake of hydrogen sulphide on the concrete surfaces was fast compared to release rates of hydrogen sulphide from wastewater [8]. This observation corresponds to the observations by Martin et al [11], who reported that residence times lower than 10 sec in a biofilter were sufficient for treating gas streams for 100 ppm hydrogen sulphide. () ( ) in the thickness of the layer of corrosion products both between the different reactors and between the individual concrete segments of each reactor.…”

Effect of Sulfide Inhibition and Organic Shock Loading on Anaerobic Biofilm Reactors Treating a Low‐Temperature, High‐Sulfate Wastewater

“…Recovery of the energy content in the form of methane is advantageous, as is recovery or removal of the sulfur if sulfide is formed (Khanal and Huang 2003;Martin et al 2002).…”