With reference to a closed loop engine exhaust gas SOx scrubber system: (a) Describe, with the aid of a sketch, such a system. (8) (b) State, with reasons, the fluid which is used for SOx scrubbing in this system. (4) (c) State how the effectiveness of the scrubbing fluid is maintained and how the sludge is removed and disposed off (4)
Emission control
UKM Tuticorin 
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