Pre-Treatment

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.

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.

Potassium Permanganate with Sodium Carbonate and bicarbonate on Alumina base.

 

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.

Potassium Permanganate with Sodium Carbonate and bicarbonate on Alumina base.

 

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