Odour emission estimates and control strategies using models and sampling for East Bay Municipal Utility District's collection sewage system and wastewater treatment plant

For several years, public complaints regarding odours generated by East Bay Municipal Utility District's (EBMUD's) wastewater treatment plant and sewa ge collection system (SCS) have been increasing. In response, an Odor Contr ol Master Plan was completed to develop near- and long-term odour abatement strategies for their wastewater system. The plan's strategies include usin g an advisory committee to assist in setting odour threshold levels, priori tizing odour sources, issuing an odour-status newsletter, and reviewing odo ur control options. The objective is to provide an odour-free community env ironment at least 99 percent of the year. This paper provides innovative approaches to estimate odour emissions and i dentify viable odour control options for SCSs through complete wastewater t reatment. This paper also presents a CH2M HILL SCS odour model comparison t o a comprehensive EBMUD sewage system corrosion study, illustrating that ar eas having high predicted odours also have high corrosion rates.