title: Seasonal and influent characteristic effects on hydrogen sulfide generation at a water reclamation plant.
abstract: Correlations between sulfide generation and seasonal influent wastewater characteristics were identified based on a long-term monitoring program in summer and winter at a water reclamation plant. During summer, the emission rates of hydrogen sulfide (H2S) from the liquid treatment processes increased substantially compared to those during winter due to the increased wastewater temperature. The open tanks/clarifiers were the least significant H2S emission contributors throughout the year. For solids-handling processes, the H2S emission rates did not change during the year due to similar sludge characteristics in the different seasons. The fate of sulfide in liquid treatment processes was investigated as an alternative to estimation of H2S emissions. H2S emission from the wet well and screens was proven to be robustly associated with the wastewater temperature, flow rate, 5-day biochemical oxygen demand and total Kjeldahl nitrogen levels. However, the correlation between influent parameters and H2S emission from aerated grit chambers was not statistically significant.
authors.affiliation: Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 South Dearborn Street, Chicago, Illinois 60616, USA E-mail: pagilla@iit.edu.
authors.forename: Yanming
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 South Dearborn Street, Chicago, Illinois 60616, USA E-mail: pagilla@iit.edu.
authors.forename: Demetrios
authors.initials: D
authors.lastname: Moschandreas
authors.affiliation: Department of Civil, Architectural, and Environmental Engineering, Illinois Institute of Technology, 3201 South Dearborn Street, Chicago, Illinois 60616, USA E-mail: pagilla@iit.edu.
authors.forename: Krishna
authors.initials: K
authors.lastname: Pagilla
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004784:Environmental Monitoring; D009584:Nitrogen / Q000032:analysis; D012621:Seasons; D012722:Sewage; D013440:Sulfides / Q000032:analysis*; D013696:Temperature; D014865:Waste Disposal, Fluid; D062065:Wastewater / Q000032:analysis
chemical_list: D000393:Air Pollutants; D009584:Nitrogen; D012722:Sewage; D013440:Sulfides; D062065:Wastewater