A few words on the art of filtration / by P.A. Maignen.

  • Maignen, P. A.
Date:
1880
Catalogue details

Licence: Public Domain Mark

Credit: A few words on the art of filtration / by P.A. Maignen. Source: Wellcome Collection.

Provider: This material has been provided by London School of Hygiene & Tropical Medicine Library & Archives Service. The original may be consulted at London School of Hygiene & Tropical Medicine Library & Archives Service.

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    for adoption upon a large scale though its claims have been t often advocated by the best authorities. Where Charcoal hi been used, no matter in what form or variety, it has simp] taken the place of sand or sponges and hence the outla incurred. No attempt seems ever to have been made 1 economise by altering the principle of its application, in fac no mechanical appliance has hitherto been at our disposi wherewith to use this medium to the best advantage. It : now proposed to shew how this difficulty has been at las overcome. Having shewn the superiority possessed by felt an charcoal, it only remains to shew the advantages possessed b a combination of these two excellent media as now introduce' in the principle of the “ Filtre Rapide.” This filter consists in the construction of a rigid an< hollow frame, Fig. 1, on which is stretched a felt strainer o bag, laced at the top, Fig. 2. In the larger filters a serie: of these frames are placed parallel to, and within a shor distance from one another , Fig. 3.