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Theory and Practice in the Filtration of Water
1916
Proceedings of the Institution of Mechanical Engineers
Open sand-filters for purifying waters for potable purposes have now been in use for nearly a century, and since 1830 they have been continuously used in connexion with the London Water Supply.. The first sand-filtration plant, designed by James Simpson for the Chelsea Water Company, consisted of decanting basins in which the raw water could be kept a t rest for twelve hours, and open filterbasins in which a layer of fine sand 2 feet 6 inches deep was placed on a bed of gravel of about the same
doi:10.1243/pime_proc_1916_090_015_02
fatcat:g23v4mewezctho6c7ltjrfqwj4