Discovery and Elimination of Dioxins from a Carbon Reactivation Process

摘要

In a project done to ensure an environmentally acceptable granular activated carbon (GAC) adsorption and reactivation system--to be sure that chlorinated dibenzo-p-dioxins (CDD's) and chlorinated dibenzo furans (CDF's) and combustion would not present problems--results from a GAC system receiving chlorinated water were compared with those receiving unchlorinated water. The studies described here are for exhausting GAC in a post-filtration carbon contactor and reactivating GAC in a fluid-bed reactivation system. Lower stack emissions of CDD's and CDF's are produced by reactivating GAC that had received unchlorinated water.