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AWWA JAW34268

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AWWA JAW34268 Journal AWWA - Enumerating and Disinfecting Bacteria Associated With Particles Released From GAC Filter-Adsorbers

Journal Article by American Water Works Association, 09/01/1993

Stringfellow, William T.;Mallon, Kathryn;DiGiano, Francis A.

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Granular activated carbon (GAC) in filter-adsorbers provides an excellent support surface for the proliferation of microorganisms. Therefore, GAC beds may release particles of carbon with attached bacteria that are protected from disinfection. In this pilot-plant study, particles were collected from the product waters of GAC filter-adsorbers, examined for bacterial colonization, and characterized by energy-dispersive X-ray analysis. Results showed that bacteria attached to GAC particles could be disinfected with chlorine if particle concentrations were in the range found in the product waters, i.e.,

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Edition: Vol. 85 - No. 9 Published: 09/01/1993 Number of Pages: 11File Size: 1 file , 2.6 MB