Abstract |
Much consideration has been devoted to whether silver, when added to water by mechanisms such as filter beds, electrolytic devices, or as colloidal suspensions, has greater germicidal efficiency than the same amount of silver added as AgNO3. In the present investigation, improved bacteriological and chemical methods, including radioisotope Ag110m, have been used to study the factors affecting the practical application of silver germicides in water treatment. Concentrations of silver are expressed either in terms of dissolved or suspended agent determined by analysis at the time of the test or in terms of silver quantitatively added. (Author Modified Abstract) |