A Handbook of Sewage UtilizationE. & F. N. Spon, 1873 - 84 páginas |
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Termos e frases comuns
A B C acre per annum adopted advantage alumina ammonia amount of sewage animal applied average Beddington Birm carbon cement process charcoal chemical cholera closet Commissioners contains Corfield Craigentinny crops Croydon deodorizing deposit disease ditto drains earth earth-closet effluent water Engineers epidemic excrement experiments F. N. SPON fæcal matter fæces favour filter filtration gallon grains guano houses human manure impure increase India iron land lime process liquid sewage manure meadow midden milk mixture mode Moule's nuisance offensive organic matter phosphate phosphate of alumina phosphoric acid pollution practical precipitate privy produce proportion purified quantity refuse removed Report river river Wandle Rochdale rye-grass sanitary sewage farm sewage irrigation sewage matter Sewage Utilization sewaged grass sewers soil solid matter soluble substance sulphuric acid supplied suspended matter tank tion tons of sewage Tott Tottenham town sewage treatment unsewaged valuable various Voelcker water-closet weight whole
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Página 7 - ... in suspension more than three parts by weight of dry mineral matter, or one part by weight of dry organic matter in 100,000 parts by weight of the liquid.
Página 7 - Any liquid which contains, in 100,000 parts by weight, more than one part by weight of sulphur, in the condition either of sulphuretted hydrogen or of a soluble sulphuret. (h) " Any liquid possessing an acidity greater than that which is produced by adding two parts by weight of real muriatic acid to 1,000 parts by weight of distilled water.
Página xviii - The second case relates to the distribution of cholera-deaths during two epidemics in the southern districts of London. These districts (comprising nearly a fifth of the entire population of the metropolis) have been notorious for the great severity with which cholera has visited them on each occasion of its epidemic prevalence in England. During the last invasion these districts were accidentally the seat of a gigantic sanitary experiment ; and a difference in one sanitary condition was seen to...
Página xix - And when these numbers are made proportionate to the populations or tenantries concerned in the two periods respectively, it is found that the cholera death-rates per 10,000 tenants of the companies were about as follows : — For those who in 1848-9 drank the worse water, 125 ; for their neighbours who in the same epidemic drank a water somewhat less impure, 118 ; for those who in 1853-4 drank the worst water which had been supplied, 130 ; for those who in this epidemic drank a comparatively clean...
Página 66 - ... especially of milk, on the unsewaged than on the sewaged grass. 14. From a given weight of unsewaged grass reckoned in the fresh or green state, more milk was produced than from an equal weight of fresh sewaged grass ; but a given weight of the dry or solid substance supplied in sewage grass was F on the average more productive than an equal weight supplied in unsewaged grass.