Collection System Odor Abatement Evaluation

The Woodlands, Texas

Perkins Engineering Consultants, Inc., personnel have performed testing of collection system headspace air quality and pressures to resolve odor complaints in neighborhoods along two major regional system interceptors. Smoke and pressure testing revealed that headspace pressurization is occurring in gravity interceptors due to surcharging over a mile downstream from the points where complaints are occurring. Field testing has been performed to identify mechanical ventilation rates for developing a headspace vacuum upstream in the affected neighborhood using a fan located downstream near the client’s treatment plant.