Design H2S and Odor Values for Typical Wastewater Treatment Processes

Designers and vendors are often confronted with the challenge of designing odor control equipment for new wastewater treatment plants or new individual processes without benefit of contaminant loading criteria. Key factors in the generation and emission of hydrogen sulfide and other odorous compounds are examined to develop a methodology for estimating design contaminant loading values from treatment processes including headworks, primary treatment, secondary treatment, and biosolids processing. The estimated design loadings are intended for purposes of selecting and sizing the most appropriate odor control systems. The design values presented are based on stated conditions and should be adjusted appropriately for specific applications to ensure a conservative design.