A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enumerating and Disinfecting Bacteria Associated With Particles Released From GAC Filter–Adsorbers
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., <20 μg/L. Increasing particle concentration tenfold interfered with disinfection efficiency. Powdered activated carbon used in pretreatment contributed to the particles found in product water.
Enumerating and Disinfecting Bacteria Associated With Particles Released From GAC Filter–Adsorbers
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., <20 μg/L. Increasing particle concentration tenfold interfered with disinfection efficiency. Powdered activated carbon used in pretreatment contributed to the particles found in product water.
Enumerating and Disinfecting Bacteria Associated With Particles Released From GAC Filter–Adsorbers
Stringfellow, William T. (author) / Mallon, Kathryn (author) / DiGiano, Francis A. (author)
Journal ‐ American Water Works Association ; 85 ; 70-80
1993-09-01
11 pages
Article (Journal)
Electronic Resource
English
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