Sewerage: The Designing, Construction, and Maintenance of Sewerage SystemsJ. Wiley, 1901 - 459 páginas |
Dentro del libro
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Página 3
... gallons of sewage ( a low estimate ) would , if tight , require to be cleaned twice each year . Very few , it is believed , are cleaned this often ; many are never cleaned , but the contained liquid leaches out into and through the ...
... gallons of sewage ( a low estimate ) would , if tight , require to be cleaned twice each year . Very few , it is believed , are cleaned this often ; many are never cleaned , but the contained liquid leaches out into and through the ...
Página 8
... in this country than abroad , where 20 to 40 gallons per capita is considered a liberal allowance for water - consumption : * See page 24 , last paragraph . while in this country our small cities must provide two 8 SEWERAGE .
... in this country than abroad , where 20 to 40 gallons per capita is considered a liberal allowance for water - consumption : * See page 24 , last paragraph . while in this country our small cities must provide two 8 SEWERAGE .
Página 24
... gallon ; but when the pollution becomes intense they seem to disappear , probably because of lack of oxygen , but their place is taken by larvæ . Diatoms , desmids , confervoid algæ and other vegetable organisms , to- gether with ...
... gallon ; but when the pollution becomes intense they seem to disappear , probably because of lack of oxygen , but their place is taken by larvæ . Diatoms , desmids , confervoid algæ and other vegetable organisms , to- gether with ...
Página 26
... gallons per day per person contributing to the sewage . ( The proportion is sometimes stated in terms of cubic feet of sewage , but since the amount of impurity is not increased by greater per - capita con- sumption or waste of water ...
... gallons per day per person contributing to the sewage . ( The proportion is sometimes stated in terms of cubic feet of sewage , but since the amount of impurity is not increased by greater per - capita con- sumption or waste of water ...
Página 29
... gallons is approximately 750 acres ; when but 11,000,000 gal- lons is discharged at once this area is not more than 250 acres . In calm weather the sewage is offensively visible over two- thirds of this area , but the odors are confined ...
... gallons is approximately 750 acres ; when but 11,000,000 gal- lons is discharged at once this area is not more than 250 acres . In calm weather the sewage is offensively visible over two- thirds of this area , but the odors are confined ...
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Términos y frases comunes
acre ammonia amount of sewage average back-filling bacteria bottom braces brick sewers brick-work capacity capita catch-basins cement centre chlorine cleaned combined sewers concrete connection construction contractor cost cubic feet danger deposits depth diameter dilution discharge drain driven effluent engineer excavation feet per second filter flowing full flush-tank flushing foot formula gallons given grade ground-water house-connections house-sewage house-sewers inches increase inlets invert inverted siphon iron joints laid least length less lime manhole masonry material maximum method minutes mortar necessary nitrates nitrogen obtained ordinarily organic matter outlet oxidation oxygen pipe sewers placed plank plumb-bob possible probably pump quantity quicksand rainfall removed run-off sand septic tank sewage flow sewer-pipe sewerage sheathing side siphon sludge soil stone storm storm-sewers storm-water stream street sub-drain sufficient surface tank templet tion trench usually velocity ventilation vertical vitrified clay pipe wetted perimeter
Pasajes populares
Página 225 - ... due notice thereof in writing, served personally upon or left 23 at the shop, office, or usual place of abode, or with the agent of the said 24 party of the second part, and the said party of the second part...
Página 224 - Boston, for or on account of any injuries or damages received or sustained by any party or parties, by or from the said Contractor, his servants or agents...