Pre-conditioning of the process stream may be required before conventional wet scrubbing or dry scrubbing. Mechanical treatment is required for dry scrubbing systems to prevent either blinding of media with dust, saturating with water or washing out the impregnants. Chemical pre-treatment is often very attractive to reduce the challenge to the main scrubbing plant.
Method
Description
Images
Further Info
Mechanical
Dust filtration, de-misting and electric heating packages available.
Chemical Bio-Filter
Biological treatment using beds of woodchip, calcified sea weed, pumice, sea shells, etc. Irrigation water required to keep bed material moist and control ph.
Catalytic Iron
Filter
Pre-rusted steel pall rings convert H2S to elemental sulphur. Simple control of relative humidity of airflow required to ensure efficient operation.
