The Separate System of Sewerage: Its Theory and ConstructionD. Van Nostrand Company, 1899 - 324 páginas |
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Página 19
... surface of the ground or into cess - pools , where the putrefying mass poisons the air , and appeals in more ways than one for a remedy . " The offense is rank . " On one of the principal streets in one of our oldest cities it became ...
... surface of the ground or into cess - pools , where the putrefying mass poisons the air , and appeals in more ways than one for a remedy . " The offense is rank . " On one of the principal streets in one of our oldest cities it became ...
Página 20
... surface instead of being removed . Periodical cleanings of the bed and banks of the stream will only mitigate the nuisance temporarily . The cure must reach the cause of the evil if it is to be radical and entire . The sewage must be ...
... surface instead of being removed . Periodical cleanings of the bed and banks of the stream will only mitigate the nuisance temporarily . The cure must reach the cause of the evil if it is to be radical and entire . The sewage must be ...
Página 21
... surface water only . Such a prohibition can hardly be made effectual until some means are provided for carrying the sewage away from the city . For this purpose a system of sewers is strongly advised , and little relief can be expected ...
... surface water only . Such a prohibition can hardly be made effectual until some means are provided for carrying the sewage away from the city . For this purpose a system of sewers is strongly advised , and little relief can be expected ...
Página 40
... surface of the bricks soon become covered with a slime of organic matter , which is constantly decom- posing . In designing sewers on this system the size will be determined mainly by the amount of rainfall per hour during storms , and ...
... surface of the bricks soon become covered with a slime of organic matter , which is constantly decom- posing . In designing sewers on this system the size will be determined mainly by the amount of rainfall per hour during storms , and ...
Página 41
... surface of brick sewers , and to the large amount of water necessary in the large sewers . The most that can usually be done is to produce current enough to carry forward and out of the sewer the solid mat- ter and rubbish , which would ...
... surface of brick sewers , and to the large amount of water necessary in the large sewers . The most that can usually be done is to produce current enough to carry forward and out of the sewer the solid mat- ter and rubbish , which would ...
Otras ediciones - Ver todas
The Separate System of Sewerage, Its Theory and Construction Staley Cady 1840-,George Spencer Joint Author Pierson Sin vista previa disponible - 2016 |
Términos y frases comunes
ammonias amount assessing average back-filling bacteria branches brick sewer cent clean Combined System connected construction consumption contractor cost cubic curve dead end depth of flow diagram diem per capita discharge distance drainage effluent Engineer Excavating and Back feet per second filled filter filtration fixtures flush-tanks gallons grade horizontal house drains house sewer inches inches in diameter increased iron pipe joints laid lamp-holes length less lineal foot man-holes material maximum method necessary nitrification nitrogen obstruct ordinary organic matter outlet pipe sewers placed plumb-bob plumbing plumbing fixtures population Price per lineal proper properly pumping purified removal sand sanitary Schenectady Separate System sewage sewer gas sewer pipe sewerage shown in Plate soil pipe storm water stream street sewer subsoil Superintendent surface syphon system of sewers TABLE tank tion trap trench typhoid fever velocity ventilating pipes waste pipes ΙΟ
Pasajes populares
Página 155 - ... for or on account of any injuries or damages received or sustained by any person or persons, by or from the said contractor, his servants or agents, in the construction of said work...
Página 156 - Stevenson or to his certain attorney, heirs, executors, administrators, or assigns, to which payment well and truly to be made we bind ourselves, our heirs, executors, and administrators, and each and every of them, firmly by these presents. Sealed with our seals, and dated this 20th day of December, one thousand eight hundred and ninety.
Página 247 - ... be deemed guilty of a misdemeanor, and upon conviction thereof be fined in any sum not exceeding fifty dollars.
Página 312 - With the gravels and sands, from the coarsest to the finest, we find that purification by nitrification takes place in all, when the quantity of sewage is adapted to their ability, and the surface is not allowed to become clogged by organic matter to the exclusion of air.
Página 140 - Engineer. [INSTRUCTIONS TO CONTRACTORS.] TO CONTRACTORS. 1. All bids must be made upon the printed forms, to be obtained at the office of the Engineer, and enclosed in a sealed envelope, directed to the Engineer of Sewers and endorsed upon the outside of the envelope, Proposal for Constructing Sewers in the City of 2. Each bid must be accompanied by a deposit of Dollars, to be left in the hands of the City Clerk, subject to the conditions specified in the proposal hereto annexed, as a guarantee of...
Página 143 - NOW, THEREFORE, In consideration of the payments and covenants hereinafter mentioned, to be made and performed by said...
Página 246 - No brick, sheet metal, earthenware or chimney flue shall be used as a sewer ventilator, nor to ventilate any trap, drain, soil or waste-pipe.
Página 304 - ... 2. In order that the effluent water may not be directly polluted by the sewage liquid, the maximum supply of the latter must not be more than can be taken up by the pores of the soil. 3. Dry loamy soil absorbs more than peaty soil and gives up less, whilst dry sandy soil on the contrary absorbs less and gives up more.
Página 30 - Smith, in a very comprehensive paper on the "Influence of sewerage and water supply on the death rate in cities" writes as follows: "Data drawn from sewered cities is now available for study and comparison.
Página 154 - If such alterations diminish the quantity of work to be done they shall not constitute a claim for damages, or for anticipated profits on the work that may be dispensed with ; if they increase the amount of work, such increase shall be paid for according to the quantity of the work actually done and at prices and rates established for such work under this contract.