Abstract: An improved process and apparatus for reducing NO.sub.x content of flue gas effluent from a furnace, the improvement comprising a burner assembly having a burner and flue gas recirculating system for collecting and passing internally recirculating flue gas into a combustion zone for reaction with a combustion flame. The burner preferably has a plurality of fuel dispensing nozzles peripherally disposed about the combustion zone to aspirate collected internally recirculating flue gas into the combustion zone, and has a plurality of fluid driven eductors to drive further amounts of collected internally recirculating flue gas into the combustion zone.

Abstract: An improved process for eliminating the liquid blowdown stream from the wet flue gas scrubbing equipment of an incinerator system. The liquid blowdown stream from the main wet scrubbing system is mixed with a hot flue gas slipstream. The water is evaporated and the residual solids are removed, thereby producing a dry waste stream for disposal and a solids-free flue gas slipstream for exhaust.