West by Southwest to Stickney

Chapter 6 Photos, 21–45

(photos 1–20 here)

Central Area Water Reclamation Plants

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Photo 6.37

March 5, 1936. This final settling tank in battery A at the Southwest plant is still under construction. Aerated liquor from the aeration tanks will enter the tank flowing vertically in the center column. Floc formed in the aeration tank settles to the bottom of the final tank and is moved to the center by the scrapers on the bottom of the four rotating arms. (MWRD photo 20850)