Title: American homes and gardens
Year: 1905 (1900s)
Subjects: Architecture, Domestic Landscape gardening
Publisher: New York : Munn and Co
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library
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ned two hours. The partially purifiedwater then flowed to a second bed, where in two hours moreit was purified so well that it could safely be allowed to flowinto streams. After each flooding the beds were exposed tothe air for four hours to enable the bacteria to multiply.But it was discovered that these beds soon becameclogged with filth, and then required two or threeweeks rest to fit them for further service. Toavoid this inconvenience Cameron conceived theidea of interposing between the sewage supply pipeand the bacterial beds a series of ditches calledseptic fosses, in which the putrefiable matter in sus-pension could be deposited and then dissolved anddecomposed by anaerobic bacteria.* The waterwhich flows from the fosses holds almost no matterin suspension, and its dissolved organic matter isvery easily decomposed by the bacteria of the beds,which, consequently, do not become clogged. The biological processes, as these methods ofDibdin, thus modified, are now called, have been
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Septic Fosses at La Madeleine-les-Lille tested at Exeter, Veovil, Manchester and else-where. The results obtained have generally beengood, and the study of these methods has greatlydeveloped in the last few years. With the energeticand fruitful initiative of Dr. Calmette, director ofthe Pasteur Institute of Lille, and the aid of alarge subsidy from the national fund for scientificresearch, France has now, in turn, taken up thestudy of the biological methods, and sufficientwork has already been done to show that thesemethods are very practical and very advantageous.Let us see, then, how these methods should beapplied in practice, in accordance with the investi-gations made at the experimental station for thepurification of water, at La Madeleine-les-Lille.Artificial bacterial purification comprises threeoperations: First, the separation of non-putrescible solidresiduum (sand, stones, fragments of metal, etc.); second,the solution, in the septic fosses, of organic matter in sus-pension,
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Tagged: , bookid:americanhomesgar41907newy , bookyear:1905 , bookdecade:1900 , bookcentury:1900 , booksubject:Architecture__Domestic , booksubject:Landscape_gardening , bookpublisher:New_York___Munn_and_Co , bookcontributor:Smithsonian_Libraries , booksponsor:Biodiversity_Heritage_Library , bookleafnumber:491 , bookcollection:biodiversity , BHL Collection , BHL Consortium