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Ozonation as an Alternative to Mandatory Filtration

by Dimitrios Katehis, City Coll of New York, New York City, United States,



Document Type: Proceeding Paper

Part of: Critical Issues in Water and Wastewater Treatment

Abstract:

The increased levels of required disinfection along with more stringent disinfection by product control as outlined in the Surface Water Treatment Rule and the Disinfectant-Disinfection By Product Rule will require many utilities to consider ozonation as an alternative disinfection process. This is of particular importance to utilities currently not filtering their water, since large costs will be incurred in the building of filtration facilities. It is proposed that using ozone as the primary disinfectant for surface waters of good quality, may simultaneously increase disinfection effectiveness and control disinfection by-products to within the prescribed limits, so that filtration plant costs can be avoided. Since ozone by-product formation is not well understood, pilot plant studies are necessary.

Subject Headings: Water treatment | Water treatment plants | Water quality | Water pollution | Surface water | Water policy | Filtration

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