Principles of Sanitary Science And the Public Health With Special Reference to the Causation And Prevention of Infectious Diseases
Principles of Sanitary Science And the Public Health With Special Reference to the Causation And Prevention of Infectious Diseases
W T William Thompson Sedgwick
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. . ** If we except the laboratory experiments in the treatment of sewage in the intermittent downward filtration described in our first report . . . no other method of sewage de£aecation approaches urrigation in the uniform excellence of its results. It is no doubt very desirable, in the interest of those towns where sewage cannot be dealt with by irrigation, that an experiment in intermittent downward filtration should be con- ducted on what may be considered a working scale, — when all those... difficulties would arise which do not show themselves in a laboratory experiment, and when it would be proved whether the process can be conducted on the drainage water o^ say, 20,000 people with the efficiency to which our laboratory experiments pointed, and without creating a nuisance. But the best result under that system would simply be the conversion of a polluting into a non-polluting stream. The injury done by town sewage would in that case disappear, but the agricultural value of it would be wholly lost.
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