Case Study

Tornado Aerators At Chicago O'Hare Wastewater Treatment Reservoir

Source: Fluence
Tornado

Background

The Chicago area is served by a combined sewer network that carries both raw sewage and storm water. With heavy urban ground cover, storm runoff at one time frequently exceeded the wastewater treatment plant’s capacity, causing raw sewage to flow directly into rivers and other bodies of water. In 1972, the water system began to implement plans to bring Chicago’s waterways up to federal and state water quality standards.