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21	A laboratory investigation of uniform protective sand filters Dragan, Peter 05 1900 (has links) No description available. Filters and filtration Sand
22	Filtration and backwashing performance of biologically-active filters Ahmad, Rasheed 05 1900 (has links) No description available. Filters and filtration Water Purification
23	Relationship of gravel filtration to exhibited sediment charge Jorden, Roger M. January 1962 (has links) (PDF) Thesis (M.S. - Hydrology)--University of Arizona. / Includes bibliographical references. Filters and filtration. Water Gravel.
24	Numerical investigation of particle collection in electrically enhanced fibrous filters / Tousi-Ardakani, Saied. January 1986 (has links) Thesis (Ph.D.)--University of Tulsa, 1987. / Bibliography: leaves 162-171. Filters and filtration Air filters.
25	The effects of precision on the fast, recursive least-squares transversal filters for adaptive filtering / Daniel, Timothy Seth. January 1990 (has links) Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1990. / Vita. Abstract. Includes bibliographical references (leaf 110). Also available via the Internet. Filters and filtration Adaptive filters
26	The effect of suspended sediment and discharge on natural infiltration of ephemeral streams. Marsh, James Allan, January 1968 (has links) (PDF) Thesis (M.S. - Watershed Management)--University of Arizona, 1968. / Includes bibliographical references (leaves 41-42). Filters and filtration. Groundwater
27	ABS removal by trickling filter Cole, Jon Arthur. January 1964 (has links) Thesis (M.S.)--University of Wisconsin--Madison, 1964. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 50-53. Filters and filtration. Alkyl compounds.
28	Evaluation of laboratory rapid sand filters Deb, Arun K. January 1961 (has links) Thesis (M.S.)--University of Wisconsin--Madison, 1961. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 53-55). Filters and filtration. Sand.
29	The development of a three-phase filtration cell / Naidu, Charvinia. January 2010 (has links) Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2010. / Full text also available online. Scroll down for electronic link.
30	An investigation into the loss of preservatives from opthalmic solutions, during filtration sterilization Naidoo, N T January 1970 (has links) Most eye drops are dispensed in multi-dose containers, hence protection should be given against microbial contamination during use. To remain sterile during it's use, the solution should contain a preservative in such concentration so that it kills micro-organisms in a short time. It has been stated in the literature that the instillation of contaminated eye drops constitutes a greater danger than the intravenous injection of a contaminated solution since the cornea is nonvascular and lacks the normal antimicrobial defences of the blood stream. Amongst the preservatives used, those included in the official formulations for eye drops are Chlorhexidine Acetate, Phenyl Mercuric Nitrate, Benzalkonium Chloride, and to some extent Phenylethanol, which may be used in combination with Benzalkonium Chloride. The main purpose of this investigation has been to determine the adsorption of these preservatives by different filters during sterilization by filtration. Part 1, p. 2. Filters and filtration Sterilization

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