. The sanitation of cities. 100 ^be purification of Sewage make drinking water out of sewage. The real andusually the only requirement is to prevent anuisance in a stream or waterway the use of whichis unavoidable for sewage discharge. In Chicago a few years ago, a board of consult-ing engineers considered various plans for thesewage disposal of that city. One of these plansconsisted of primary and secondary treatment bymeans of tanks, followed by sprinkling filters ofimmense size and capacity; the other was for acanal connecting the waters of Lake Michiganwith the Illinois River, thereby crea


. The sanitation of cities. 100 ^be purification of Sewage make drinking water out of sewage. The real andusually the only requirement is to prevent anuisance in a stream or waterway the use of whichis unavoidable for sewage discharge. In Chicago a few years ago, a board of consult-ing engineers considered various plans for thesewage disposal of that city. One of these plansconsisted of primary and secondary treatment bymeans of tanks, followed by sprinkling filters ofimmense size and capacity; the other was for acanal connecting the waters of Lake Michiganwith the Illinois River, thereby creating a greatcommercial waterway, into which the entire sew-age of the city could be discharged, and com-pletely treated by the mere dilution thereof, withthe waters of the CITY OF CHRISTIANIA, NORWAY View of waterfront and Riensch-Wurl treatment plant (indicated by arrow). Note class of residential buildings in immediate vicinity of the plant and pleasure craft in the harbor into which the screened effluent is directly discharged The result to be obtained by the first methodat best was uncertain, and the period of time dur-ing which it would be sufficient was doubtful. lOI


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Keywords: ., bookcentury1900, bookdecade1920, bookidcu3192400497, bookyear1921