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The principal disadvantage of a wet scrubber compared with a fabric filter is

  • A.It has a very high capital cost
  • B.It cannot collect fine particles at all
  • C.It leaves an effluent needing treatment
  • D.It cannot handle hot gases

Answer: C

The captured dust leaves as a slurry that must be thickened, dewatered and disposed of, and the water itself often needs treatment. Against that, a scrubber handles sticky, hot and flammable streams that would defeat a baghouse entirely.

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