Chicago : Engineering and Contracting Pub. Co. · leaf 89
ew York, Cincinnati and other cities inAmerica. Formerly there was a theory that runningwater purified itself in flowirg 20 miles. Thistheory was based on the belief that sedimen-tation, sunlight, aeration, etc., combine to re-move mud and destroy bacteria. These forcesdo not act along such lines… … Fig. 1.—General Plan of Water Purification Works at Columbus, Ohio. heavy storms of the fall, winter and springsweep over the freshly plowed fields, rushthrough the sewers of cities and towns, andthe barn-yards where stock has been housedfor months, the rains scour immense quan-tities of mud,…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
