DEODORIZATION AND CLEANING OF MEDIUM TEMPERATURE WET OFF-GASES DERIVED FROM BURNING OF WET WASTE SLUDGE

摘要

Medium temperature (500 DEG F.-1100 DEG F.) wet off-gases from the final drying zone of counterflow incineration of waste sludge are scrubbed and cooled before heating to final high temperature in an afterburner and the resulting hot dry gases are used to preheat the scrubbed and cooled gases prior to entry of said gases into the afterburner.