. American engineer and railroad journal . ons to take sedimentation chamber is of great size to allow plenty of«ime to the passing water to precipitate the scale-forming im-purMes. The cone system of arrangement of tank causes thewater to flow with constantly decreasing velocity, so that, in Another of the important features of the Kennicott water-softener is that, while a filter of the most approved type isprovided to cleanse the water of the impurities as itt is beingdelivered, it has little to do; the thorough and complete sedi-mentation process takes care of the greater part of t
. American engineer and railroad journal . ons to take sedimentation chamber is of great size to allow plenty of«ime to the passing water to precipitate the scale-forming im-purMes. The cone system of arrangement of tank causes thewater to flow with constantly decreasing velocity, so that, in Another of the important features of the Kennicott water-softener is that, while a filter of the most approved type isprovided to cleanse the water of the impurities as itt is beingdelivered, it has little to do; the thorough and complete sedi-mentation process takes care of the greater part of the pre-cipitation, or sludge, by favoring its gradual settling to thebottom of the tank, from which it may be drawn off periodicallythrough the sewer connections. It is interesting to note inthis connection that the main sludge-valve is opened twice aday, at each of which times over a ton of scale-forming matteris discharged in the form of a soft sludge. The filter is easilycleaned and practically no water is wasted in cleaning it; it is. GENERAL VIEW OF THE LARUE KENNICOTT WATEK -CAPACITT 60,000 GALS. PES HOUR. ON EITHER SIDE IS A 500,000 GAL. STORAGE TANK FOR THE TREATED WATER SUPPLY FOB THE LOCOMOTIVES. WATER SOFTENING INSTALLATION AT McKEES ROCKS.—PITTSBURGH & LAKE ERIE RAILROAD. addition to passing through the same in the presence of pre-viously precipitated old sediment and sludge (which is a veryimportant factor, as it favors the precipitation of the impuri-ties), it is comparatively at rest and free from agitation; thiscondition of precipitation is favored by the deflector plates, F,and also the perforated cone arrangement at I, all of whichalso tends to prevent any of the raw water from by-passing,;or getting ahead of any of the treated water which has alreadypassed to the settling chamber. only necessary to draw off the sludge, which drops the waterlevel in the tank down below the filter, which causes the waterto flow backwards through the filtering mate
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
