File:Sewage disposal (1919) (14779803815).jpg

Identifier: sewagedisposal00kinn (find matches)
Title: Sewage disposal
Year: 1919 (1910s)
Authors: Kinnicutt, Leonard P. (Leonard Parker), 1854-1911 Winslow, C.-E. A. (Charles-Edward Amory), 1877-1957 Pratt, Robert Winthrop, 1876-
Subjects: Sewage disposal Public health Sewage disposal Sewage
Publisher: New York : John Wiley & Sons, Inc. London : Chapman & Hall, Limited
Contributing Library: Yale University, Cushing/Whitney Medical Library
Digitizing Sponsor: Open Knowledge Commons and Yale University, Cushing/Whitney Medical Library

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0,000 cubic feet per min-ute from Lake Michigan plus the sewage in the Chicago Riverand the Illinois and Michigan canal. The general relations of thedrainage area are indicated in Fig. 7. The Des Plaines entersthe Illinois River below Joliet and the Illinois is later furtherdiluted by the Kankakee, the Fox, the Big Vermilion and theSangamon rivers. At Grafton the Illinois enters the Missis-sippi. A short distance below, the water of the Mississippi isused as a source of water supply by the city of St. Louis; andon the day the canal was opened, Jan. 17, 1900, the State ofMissouri instituted proceedings before the Supreme Court ofthe United States, praying for an injunction against the Stateof Illinois and the sanitary district of Chicago. The leadingsanitary experts of the country testified in the case, and thecomplete records, which occupy 8000 printed pages, have beendigested and published in brief form by the U. S. GeologicalSurvey (Leighton, 1907). 46 DISPOSAL OF SEWAGE BY DILUTION
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Fig. 7. Chicago Drainage Canal and Illinois River. SELF-PURIFICATION IN DES PLAINES, ETC., RIVERS 47 The case was an ideal one for the study of self-purification.The sewage of a large city, carrying four million pounds ofurine and fecal matter per day, was discharged into a streamwhich gave at first a dilution of about one part sewage in tenparts of water. This polluted stream with successive dilu-tions from purer rivers flowed for a distance of 357 miles in anaverage time, variously estimated at eight to eighteen days. TABLE XIV SELF-PURIFICATION IN THE DES PLAINES AND ILLINOIS RIVERSJanuary-June, 1900. Parts per million. Station. Period Am- Albu- of Chlo- monia. minoid Ni- Ni- Bacteria flow, rine. nitro- nitro- trites. trates. per c.c. days. gen. gen. Illinois and Michigan. . Canal, Bridgeport 96\6 8^05 2^05 0^021 0.074 631,000 Illinois and Michigan. . Canal, Lockport i.h 124^5 1090 207 6oi3 0066 1,755,000 Des Plaines R., Joliet.. 1.7 41.5 4.22 0.83 0.021 0.086 744,286 Illinois R.,

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