Document Type : Research Paper

Authors

1 Department of Chemical Engineering collage of Eng., University of Baghdad, Jadaria, Baghdad, IRAQ.

2 Environmental Analysis, Ministry of Environment, Baghdad, IRAQ.

Abstract

Abstract A bench scale system was built to study the regeneration of sodium hydroxide used for then absorption of sulfur dioxide by reaction with lime suspension . The method of Box - Wilson experimental design was employed for the determination of the optimum conditions which give the highest regeneration efficiency . The optimum conditions of sodium hydroxide regeneration reaction were : feed ratio 0.59 , reaction temperature of 14 ° C reaction time of 31 min . These correspond to the maximum regeneration efficiency of 95 % .