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November 22, 1947

Water Supply and Sewerage

JAMA. 1947;135(12):807. doi:10.1001/jama.1947.02890120061030

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This is the second edition of a textbook covering in one volume the subjects of water supply, water purification, sewerage, sewage treatment and storm drainage. New material includes a discussion of the principles of chlorination to produce free available chlorine residuals, commonly called break-point chlorination; a summary of recent advances in water softening and corrective treatment of water to prevent corrosion of and deposits in pipes; and, in sewerage, a brief description of highrate trickling filters, which are a rather recent development. On these high-rate filters both organic and liquid loadings are several times as great as on the standard, or low-rate, filters generally used prior to 1940.

The inclusion of so much material in one volume requires condensation and does not permit lengthy discussions or the presentation of illustrative problems, which are often helpful to the designer and the student. However, as a book for quick reference on good

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