Sewage disposal . HiSTOR-rCAi. INSTALLATIONS OF THE HAMPTON PRINCIPLE 181. 182 PRELIMINARY TREATMENT IN TWO-STORY TANKS The Imhoff Tank. The most important modification of theseptic process is the tank devised by Karl Imhoff for use in theEssen or Emscher district of North Germany, and first placed inoperation at Recklinghausen in 1907, — commonly known fromits inventor as the Imhoff tank. This tank does not make use ofthe Hampton principle of the removal of colloidal solids by ad-sorption; but it closely resembles the Travis tank in the factthat the sludge is collected and digested in a separ
Sewage disposal . HiSTOR-rCAi. INSTALLATIONS OF THE HAMPTON PRINCIPLE 181. 182 PRELIMINARY TREATMENT IN TWO-STORY TANKS The Imhoff Tank. The most important modification of theseptic process is the tank devised by Karl Imhoff for use in theEssen or Emscher district of North Germany, and first placed inoperation at Recklinghausen in 1907, — commonly known fromits inventor as the Imhoff tank. This tank does not make use ofthe Hampton principle of the removal of colloidal solids by ad-sorption; but it closely resembles the Travis tank in the factthat the sludge is collected and digested in a separate lowercompartment. This latter aim is in fact attained much morecompletely than in the Hampton tank. Dr. Travis made specialprovision for passing one-sixth to one-eighth of the fresh sewage t c^k-^^l ^hfcw- / ^^i^Esi •SBSEHH ^jHf, Fig. 52. Hydroljiic Sewage Treatment Tank, Luton, England(courtesy of Engineering News). through the liquefying chamber, while in the Imhoff tank everyeffort is made to separate the sedimentation and the digestionprocess as completely a
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1919
