Improved Apparatus for Purifying Water

作者: Duenkelberg Friedrich Wilhelm

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摘要: 18,806. D³nkelberg, F. W. Aug. 22. Filters; water, purifying. - The water is supplied to the distributing- channel A surrounding tank M. Sediment deposited and passes under zinc caps into perforated tubes F lined with drain pipes G. Thence through concentric layers B, E, E' of coke, fine sand, coarse sand respectively a cylinder C having horizontal perforations, each which pipe filled gravel. Chlorides sulphates present in are transformed corresponding copper lead salts by reaction wires packed infusorial earth series , bases chlorides or uniting silica. thin layer animal charcoal boneblack may be placed between two sand. E facilitates aeration, air being drawn when discharged from C. It stated that space within utilized arranging several apparatus different sizes concentrically. Various reagents A. Lime, plaster paris, and, Provisional Specification, chalk mentioned for use this way.

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