Fate of Chlorinated Organic Compounds during Thermal Conversion of Sewage Sludge

Investigations show that polychlorinated dibenzo-p-dioxines contained in sewage sludge can be decomposed by means of thermal conversion (pyrolysis). In the trial conducted a complete decomposition, however, could not be reached. By partly decomposition compounds were produced which were lower in chlorine content but higher in toxicity. The results indicate that a complete decomposition could be reached by optimizing the process.