"A completely different type of filter, using diatomaceous earth as the filter media, had been in use for many years for filtration of industrial liquids, however, the use of diatomaceous earth for water filtration purposes had been discouraged due to the rapid clogging of the filter material. "As late as 1930 it was reported that the very excellence of filtration with diatomite prevented its extensive use in water filtration except where complete elimination of bacteria and suspended matter is essential.”
Diatomaceous earth, however, seemed to exhibit the general properties the research groups were seeking; in the refined state it exhibited great porosity, permeability, low apparent density and was as inert a substance as sand. Deposits of crude diatomite were found in almost every country on earth, but the largest and purest deposits known were located at Lompoc, California in Santa Barbara County. These deposits today are mined, dried, milled, purified and calcined, the end product being used as a filter media, as an additive to paint, as an insulating material and as an abrasive material for use in various polishes and cleaners"--Introduction, page 4.
Roberts, J. Kent, 1922-2014
Civil, Architectural and Environmental Engineering
M.S. in Civil Engineering
Missouri School of Mines and Metallurgy
vii, 76 pages
© 1957 Robert Wassell McLeane, All rights reserved.
Thesis - Open Access
Water -- Purification -- Equipment and supplies
Filters and filtration
Print OCLC #
Electronic OCLC #
Link to Catalog Record
McLeane, Robert Wassell, "Filter materials for emergency use in diatomite type water filters" (1957). Masters Theses. 2186.