Evaluation of wet scrubber systems

Abstract

Packed bed wet scrubber is an air pollution control device which uses liquid to remove pollutant from the process air streams. It is widely used in many industries in Malaysia to remove soluble gaseous pollutants. It is also capable of removing particles with low particles loading. The common designs of the packed bed scrubber are cross flow and counter current flow. In this project, the efficiencies of cross flow and counter current flow packed bed wet scrubbers used in Penang, Malaysia are studied and compared. Design requirements for these industry scrubbers are also investigated from Department of Environment Penang. Factors affecting the scrubber efficiency are also included. For this project, the scrubber efficiency is determined empirically in which the efficiency of packed bed scrubber is found from experimented and proven efficiency data based on the designed packing depth. A survey is also done for this project among several local consultants of packed bed wet scrubber in Penang so that practical information regarding the scrubber is traceable. This project is expected to be useful towards the understanding of packed bed scrubber system used in Penang, Malaysia.