Sidestream Elevated Pool Aeration Station Design

by Bill Macaitis, Metropolitan Water Reclamation, Chicago, United States,

Document Type: Proceeding Paper

Part of: Air-Water Mass Transfer


The Metropolitan Water Reclamation District of Greater Chicago (MWRDGC) is constructing a system of five Sidestream Elevated Pool Aeration (SEPA) stations along the 35.8 mile Calumet River, Cal-Sag Channel and Main Channel portion of the MWRDGC's waterway system to maintain minimum stream dissolved oxygen (DO) standards ranging from 3.0 mg/l on the Cal-Sag Channel to 5.0 mg/l on the Calumet River. SEPA involves the pumping of relatively low DO water from the waterway up to a series of elevated shallow sidestream pools linked by waterfalls, and discharging the flow back to the waterways. This paper discusses the planning, design and cost-effectiveness of the SEPA system.

Subject Headings: Aeration | Water quality | Water resources | Water reclamation | Water discharge | Dissolved oxygen | Rivers and streams | Urban areas | Chicago | Illinois | United States

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