The Wet Scrubbing System works on the principle of a chemical reaction occuring in one or more packed columns. The plant usually consists of a base tank containing the chemical solution above which is a packed column incorporating a spray head. The column has a contaminated gas inlet and a clean gas outlet. By recirculating the chemical solution through the column the offending odours are removed.

The systems are designed with varying levels of control and instrumentation depending on the customers' requirements.

Special designs include the use of highly efficient structured packings and enhanced chemical process techniques.