Wet Scrubber

Wet Scrubber involves the injection of an alkali solution such as sodium carbonate or sodium hydroxide into a hot flue gases exiting a process to capture acid gases such as HCl, HF, HBr, HI and SOx, heavy metals and semi-volatile organic compounds.

The solution is typically sprayed in a spray tower, a venturi scrubber or a packed bed scrubber where it reacts with the acid gases while the heavy metals and semi-volatile organic compounds are condensed.

The sorbent liquid is then collected at the bottom of the scrubber prior to be recirculated to the top of the scrubber or being send to a waste water treatment unit.