Aeration of Water.
An important experiment in water purification hae reoently been carried out at Philadelphia, under the lupewntendence of the chief engineer to the water-supply department of that city. It ba<* been known for come time that the purifying action of air upon water is much increased if the two be mingled under picssure, but the fact oxi--tcd simply as the result of a laboratory experiment. To try tbp practicability of the principle on a big *cale, a large turbine was converted into an air-pump, and was madn to dr-liver a measured volume of air to a water-main. On analysis of the water before and aUrr the experiment, it was found that the quantity of free oxygen in the water bad increusH by seventeen per cc ni. The amouut of owgen indicated retntseflts the exec h of what was required to Tjunfy the orgaiuc in lift »■ uu.uk (i in the WHier pievioub to its ac -tun. The rtsult of the experiment vi consj.,'eiu] hi^r-ly tati? !ii t iy.
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Waikato Times, Volume XXV, Issue 2045, 15 August 1885, Page 6 (Supplement)
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169Aeration of Water. Waikato Times, Volume XXV, Issue 2045, 15 August 1885, Page 6 (Supplement)
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