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REDUCTION OF METAL LEACH FROM CARBON WATER FILTERS

IP.com Disclosure Number: IPCOM000173291D
Publication Date: 2008-Jul-29

Publishing Venue

The IP.com Prior Art Database

Abstract

Filtration matrixes comprising an adsorptive carbon media having a source of metal leach, a titanium oxide media, and an optional polymeric binder are provided. The titanium oxide media can be present in an amount of up to 5% by weight. The filtration matrix can remove at least a portion of the metal leach. The carbon media can be wood-based. The filtration matrix can provide a water effluent having a three-day average aluminum concentration according to NSF Standard 42 that is at least a factor of 10 less than a comparative filtration matrix comprising the adsorptive wood-based carbon media having the source of aluminum leach and the polymeric binder, the comparative filtration matrix being free of the titanium oxide media. Methods of reducing metal leach using such matrixes and making the same are also provided. The filtered effluent can comprise less than 200 ppb aluminum.