Chicago : Engineering and Contracting Pub. Co. · leaf 479
n the influent or in the ef-fluent. As these investigations extend over alonger period of time, they will show thatsewage treated by Emscher tanks will not be-come septic during the detention in the tanks,and that it will be impossible to show H2S inthe effluent, provided that it was not… … id Emscher Tanks 6rit ChamberScreeninfluent EngHContg Fi 3—Sketch Plan of Sewage Clarifica-tion Works for 145,000 Populationat Bochum, Germany. of the influent arc collected and allowed tostand for _ hours in the calibrated settlingglasses, after which the number of cubic cen-timeters of settling…
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