A laboratory investigation was performed to study the feasibilityof using activated carbon pre-loaded with phenol as the base materialin a biofilter used to remove air-phase 1,2-dichloroethane (DCA).Phenol has been shown to be a suitable cometaboliet in the aerobicdecomposition of chlorinated organics. The DCA removals achieved withpre-loaded phenol were compared to removals achieved with concurrentphenol addition. Results of this study indicate that preloading ofphenol may avoid the enzyme competition that causes the low removalof chlorinated organics normally achieved by air-phase biofilters.The technique of pre-loaded growth substrate requires furtherresearch and refinement.
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