NWPE™ Wastewater Products

MANUFACTURERS OF A COMPLETE LINE OF ODOR CONTROL SYSTEMS.

	ODORSCRUB PACKED TOWER SCRUBBER™

	The ODORSCRUB PTS line of packed tower scrubbers is designed to be a low cost, highly effective system for removing H2S from municipal wastewater applications. The systems are based on neutralization of the H2S into a caustic solution. Recirculation will increase the concentration of the gas in solution and decrease the quantity of scrubbing solution required.






	PROCESS DESCRIPTION: High velocity contaminated odorous gas enters the large plenum chamber wherein the velocity is reduced to provide even gas distribution across the bottom of the packing section. The gas flows slowly through a bed of specifically selected packing, which creates a tortuous labyrinth that causes the gas to be completely mixed and reacted with the caustic solution. The counter current flow of gas and solution maintains an absorption driving force throughout the entire depth of the packing bed. Fresh make-up solution is added to the solution being recirculated to compensate for evaporation and to keep the absorbed contaminant concentration in an effective absorption range. In the spray chamber the caustic solution is evenly distributed over the top of the packing bed by a single non-clogging spray nozzle. Clean gas flows through a high efficiency mesh pad, which prevents mist carryover. The caustic solution is collected in the recirculation sump, which has been sized large enough to provide a constant positive head for a recirculation pump.