CW1 documents

[Case Study] CITY OF PORTLAND, OR - Packed Bed System (PBS) Ankeny Wastewater Pump Station – Odor Treatment System Rehabilitation

Written by Randie Shingleton | Mar 4, 2026 3:41:49 PM

THE PROBLEM

The City of Portland, Oregon, needed a solution to manage wastewater odor in its bustling downtown park, which hosts events year-round. Odor control was a top priority, but the project was made more challenging by the system’s location – directly beneath the park and accessible only through a small hatch – creating significant installation obstacles. Previously installed systems had failed to trap odors, leading the City of Portland to enlist PureAir to undertake their unique odor control needs. This project presented a unique challenge due to the system’s location and the need for extensive customization.