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August 21, 1909, Vol LIII, No. 8 >
ARTICLE | August 21, 1909

THE PURIFICATION OF WATER BY OZONE

JAMA. 1909;LIII(8):636-637. doi:10.1001/jama.1909.02550080040007.
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Ozone has been called the ideal agent of purification since it is only a more active form of ordinary oxygen, already existing normally in the atmosphere in small quantities, and since its application to water leaves behind no foreign chemical residue. The first attempt (1889) to sterilize water with ozone was reported by Fröhlich,1 and was carried out with an apparatus manufactured by Siemens and Halske of Berlin. The Siemens and Halske method was installed later on a larger scale at Wiesbaden and Paderborn in Germany, and is said by Erlwein2 to have given highly satisfactory results at those places. Other forms of ozonizing apparatus have been devised by Tindal (since improved by De Frise), Marmier and Abraham, Vosmaer and Otto, and are in use in several installations in Holland, France and Germany. The process has been investigated by a number of competent bacteriologists, including van Ermengem, Roux

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