The MPPM
significantly enhances the removal efficiency of the present scrubber, especially in low inlet concentration
range (0.02–1 ppmv), which was greater than 99% for HCl and HNO3 and 98% for CH3COOH at the
liquid-to-gas ratio of 18.5 L/m3
, the retention time of 0.5 s, and the pressure drop of 0.2 cm H2O.