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Excerpt from An Experimental Study of the Use of a Disinfectant in Rapid Filtration of Water: Thesis Among the European experiments upon the use of chlorine as a disenfectant may be cited those at Hamburg and Berlin. At Hamburg, Broskauer and Elsner experimented upon sewage which had been chemically precipitated by the rothe-degener process. They *obtained satisfactory disinfection of sewage with chloride of lime, using concentrations of chlorine ranging from to parts per million. Schunacher obtained a satisfactory disinfection of crude hospital sewage by the use of 45 parts per million available chlorine. At Berlin, Kranepuhl succeeded in removing all B. Coli from liter samples of crude Berlin sewage by using a concentration of 300 parts per million available chlorine. This test is more rigid than ordinarily required. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.