The Separate System of Sewerage: Its Theory and ConstructionD. Van Nostrand Company, 1899 - 324 páginas |
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Página 28
... lay in the water , though the man affirmed that it was the best water in the city . The analysis shows , besides ammonia , organic nitrogen , and nitrates in large quantities , an amount of chlorine nearly three times as great as that ...
... lay in the water , though the man affirmed that it was the best water in the city . The analysis shows , besides ammonia , organic nitrogen , and nitrates in large quantities , an amount of chlorine nearly three times as great as that ...
Página 30
... lay down , and which appear to me to be clearly deducible from the data at my disposal are as follows : “ Typhoid fever and cholera decrease in proportion as a city is well sew- ered . This may be laid down as a fundamental proposition ...
... lay down , and which appear to me to be clearly deducible from the data at my disposal are as follows : “ Typhoid fever and cholera decrease in proportion as a city is well sew- ered . This may be laid down as a fundamental proposition ...
Página 45
... lay special drains for the removal of ground water . It will be found , however , that often the strata are so broken ... laid beneath the line of saturation have proved to be practically useless from lack of a proper conception of the ...
... lay special drains for the removal of ground water . It will be found , however , that often the strata are so broken ... laid beneath the line of saturation have proved to be practically useless from lack of a proper conception of the ...
Página 47
... laid in hydraulic cement are preferable . - Flushing . While the problem of flushing the small sewers of the Separate System is a much less difficult one than that of flushing the large sewers of the Combined Sys- tem , still the matter ...
... laid in hydraulic cement are preferable . - Flushing . While the problem of flushing the small sewers of the Separate System is a much less difficult one than that of flushing the large sewers of the Combined Sys- tem , still the matter ...
Página 51
... laid in the same trench with the sewers . In the sewers of Pullman , Ill . , designed by Benezette Williams , C. E. , the sewers are flushed by connections with the water mains , and the house drains are flushed by auto- matic flushing ...
... laid in the same trench with the sewers . In the sewers of Pullman , Ill . , designed by Benezette Williams , C. E. , the sewers are flushed by connections with the water mains , and the house drains are flushed by auto- matic flushing ...
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.