MAKE-UP STEAM VAPOR BOD CONDENSAT ELUTRIATING NA, CO, H,O PRODUCT EED SOLUTION EAT EXCHANGE CENTRATE TANK PREHEATER CIRCULATING PUMP VAPOR COMPRESSOR CONDENSATE igure 20. Single-effect recompression evaporator for soda ash. Swenson Division, Whiting Corporation.51 6 Fermentation and Biochemical Engineering Handbook