Discussion
Consider the following statements about wet scrubbers:
1. The contacting power principle relates efficiency to power expended.
2. They handle sticky and hot gases that would defeat a baghouse.
3. They avoid producing any effluent requiring treatment.
Which of the statements given above is or are correct?
Answer: A
Correct answer: 1 and 2 only
Statements 1 and 2 are correct: efficiency follows the contacting power expended, and water handles hot and sticky gases that would destroy a baghouse. Statement 3 is exactly wrong - the scrubber produces a slurry that must be thickened, dewatered and disposed of, and that effluent is the price paid for its tolerance of difficult gas.
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