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도서 No. 66 has been applied to Filter No. 67, containing 5 feet in depth of sand of an...에 대해 검색한
" No. 66 has been applied to Filter No. 67, containing 5 feet in depth of sand of an effective size of 0.19 millimeter. The average rate of filtration obtained by this filter has been 608,500 gallons per acre daily. As Filter No. 66 is of twice the area... "
Public Documents of Massachusetts - 480 페이지
저자: Massachusetts - 1897
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Annual report of the State Board of Health of Massachusetts. 1896

1896
...Beginning September 8, the strong waste liquor from the scouring process has been applied to a filter containing 5 feet in depth of sand of an effective size of 0.25 millimeter. The rate of application has been equal to about 17,000 gallons per acre daily, and...
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Annual Report of the State Board of Health of Massachusetts, 28권

Massachusetts. State Board of Health - 1897
...effluent of Filter No. 12 A has been of most excellent quality (see page 493). The effluent of Filter No. 66 has been applied to Filter No. 67, containing 5 feet in depth of s:md of an effective size of 0.19 millimeter. The average rate of filtration obtained by this filter...
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Annual report of the State Board of Health of Massachusetts. 1898

1899
...clearly, for instance, by results obtained year after year with Filter No. 14. This filter contains 5 feet in depth of sand of an effective size of 0.19 millimeter, and to it has been applied, during the past four and one-half years, sewage which has first been strained...
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A Review of Twenty-one Years' Experiments Upon the Purification of Sewage at ...

Harry Willard Clark - 1909 - 291 페이지
...sewage partially strained and partially nitrified — were applied to Filter No. ISA, constructed of 5 feet in depth of sand of an effective size of 0.19 millimeter. This filter gave a highly purified effluent at a rate of nearly 1,000,000 gallons per acre daily for...
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Annual Report of the State Board of Health of Massachusetts, 40권

Massachusetts. State Board of Health - 1909
...of Effluent of Filter No. 19 A. Filtration following Coke Straining. Filter No. 14A, constructed of 5 feet in depth of sand of an effective size of 0.19 millimeter, was operated with the effluent of the coke strainer from June, 1894, until the end of the year 1899....
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Disposal and Purification of Factory Wastes Or Manufacturing Sewage

Harry Willard Clark - 1910 - 67 페이지
...November 25, — 322,000, 400,000, 370,000 and 350,000 gallons, respectively. Two small sand filters, each containing 5 feet in depth of sand of an effective size of 0.24 millimeter, were put into operation. The waste liquor resulting from the preparation of hides...
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Annual Report of the State Board of Health of Massachusetts, 35권;1902-1903권

Massachusetts. State Board of Health - 1904
...[Paris per 100,000.] » Ran live days only. Filter No. 185, -nnjinj of an Acre in Area. This filter, containing 5 feet in depth of sand of an effective size of 0.23 millimeter, was in operation throughout 1902 and the first five months of 1903. It received during...
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