... OF HEALTH BIOAERATION BIOLOGICAL AERATION SEWAGE PURIFICATION FILTERS BEDS APPARATUS AIR REQUIREMENTS OXYGEN DEMAND SLUDGE TANKS DESIGN TREATMENT ACTIVATED BUBBLES PUMPS CHEMICAL PROCESS EFFLUENT AGITATION MOISTURE COMPRESSED MIXING ECONOMY SHEFFIELD UK...

..., byfarthe larger part of theair which is employed inthe processserves admittcdly the purely mechanical purpose of agitating the scwagc and keeping the sludge in circulation. MECHANICAL AGITATION. Xhe$eld Experimemk-Althoughin the largemajority of cases diffusers have givenexcellentresults, inothers...

... AGITATION DISPOSAL PURIFICATION SEDIMENTATION BACTERIA BEDS OXYGEN TEMPERATURE PRESSURE TANKS SURFACE ELECTRICAL TENSION FILTERS BACTERIAL TREATMENT DIFFUSERS COSTS POLLUTION BIRMINGHAM UK l'roceedingi.] DISCUSSION ON BIO-AERATION OF SEWAGE. 131 Discussion...

...P FRANKLAND © Thomas Telford and ICE 1886 WATER PURIFICATION BIOLOGICAL CHEMICAL ORGANIC ORGANISMS REMOVAL MICROORGANISMS FILTRATION EFFICIENCY CHARCOAL COKE AGITATION PRECIPITATION TREATMENT TESTS GELATINE WATER SUPPLY CONTAMINATION SOLID NATURAL PARTICLES FILTERS...

... of agitation, but the success was not commensurate with the cost of working, so that plan after plan had to be abandoned. It was at last determined to try a method which had, at the very first, been suggested to the Author by Sir Frederick Abel, C.B., F.R.S., Hon. M. Inst. C.E., who i n Medlock s time had...

... produced almost instantaneously, since less than half a minute's agitation brought down the albumenoidammonia to its lowest point. TheAuthor inay a t once say, that it appears never to be absolutely removed; but thereis good reason for believing, as the result of experiments to be described further...