Reevaluation of Granular-Carbon Filters for Taste and Odor Control

laboratories by means of granularcarbon filters. The procedure is convenient, thoroughly reliable, and has consistently proved to be capable of removing any odors remaining after other treatments. The availability of regenerable granular activated carbon makes it possible to convert this laboratory technique for producing superiorquality water into an economic, practical plant scale procedure for processing drinking water in public systems. A "regenerable" activated carbon is capable of being reactivated to restore its adsorptive capacity lost during use. Such regenerable activated carbons can be used over and over again.