The Purification of Sewage: Being a Brief Account of the Scientific Principles of Sewage Purification and Their Practical ApplicationC. Lockwood and son, 1904 - 220 pages |
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Page x
... sand , gravel , etc. , filters - London County Council experiments - The evolution of the modern sewage filters - Contact beds and percolating filters - Experi- ments on the influence of temperature on nitrification CHAPTER IX ...
... sand , gravel , etc. , filters - London County Council experiments - The evolution of the modern sewage filters - Contact beds and percolating filters - Experi- ments on the influence of temperature on nitrification CHAPTER IX ...
Page 20
... sand or gravel , or whether it is passed through artificially prepared filters of polarite , crushed coal , hard clinker , coarse sand , or any other suit- able substance , the change which takes place , whereby the organic matter in ...
... sand or gravel , or whether it is passed through artificially prepared filters of polarite , crushed coal , hard clinker , coarse sand , or any other suit- able substance , the change which takes place , whereby the organic matter in ...
Page 35
... sand . move coarse sand . pea gravel . 40 99 99 99 60 29 29 " " 22 120 99 " " " " 180 99 " " وو 1 in . rounded pebbles . 13 in . angular stones . The bottom velocity is between three and four - fifths of the surface velocity , and it ...
... sand . move coarse sand . pea gravel . 40 99 99 99 60 29 29 " " 22 120 99 " " " " 180 99 " " وو 1 in . rounded pebbles . 13 in . angular stones . The bottom velocity is between three and four - fifths of the surface velocity , and it ...
Page 42
... sand dredged near the outfalls , which formerly was pure , was contaminated with foul mud , and that for fifteen miles below the outfalls the fish had disappeared from the river . During the Commissioners ' inquiries they had occasion ...
... sand dredged near the outfalls , which formerly was pure , was contaminated with foul mud , and that for fifteen miles below the outfalls the fish had disappeared from the river . During the Commissioners ' inquiries they had occasion ...
Page 44
... sand - filters ; the remaining population of 284,181 obtained their supplies from other sources . The first population had an attack rate of 29 and 24 per 10,000 for the two six - week periods , and the other population had an attack ...
... sand - filters ; the remaining population of 284,181 obtained their supplies from other sources . The first population had an attack rate of 29 and 24 per 10,000 for the two six - week periods , and the other population had an attack ...
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Common terms and phrases
acre albuminoid ammonia alkaline amount apparatus applied Architect Author automatic bacteria BOILER carbonate cent chemical Chesterfield chlorine cloth coal colour Construction contact beds contains Craigentinny Crown 8vo cubic centimetre D. K. CLARK Diagrams dish distilled water distributor drain Electrical Engineer Enlarged estimated Fcap feet filtration flask Formulæ Fourth Edition free ammonia grains per gallon gramme half-bound Illustrations inches incubation intermittent iron irrigation land lime liquefied Manual Manufacture matter in solution Mechanical method Mining necessary Nessler nitrifying Nitrogen as nitrates obtained organic matter oxidation oxygen absorbed percolating filters permanganate pipette Plates Pollution potash Practical Handbook Practical Treatise precipitating tank purification Revised revolving river sand SCOTT BURN Second Edition septic tank sewage effluent sewage farm sewage filter sewers sludge soil solid matter standard solution Steam Students sulphuric acid surface suspended matter Tables tank effluent Third Edition tion tube volume water supply water-closet
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