Spray tower scrubbers are a low cost / medium efficiency scrubbing method. The spray tower scrubbers work by passing the air up through the scrubber chamber while spray nozzles with a set droplet diameter and water volume continuously spray the chamber. To be effective the spray nozzles design needs to be specified to the dust particle size and type.
Spray towers are also used for pre-conditioning of airflow, reducing the temperature or adding humidity into an airflow before it goes to a secondary air filtration stage.
Our Vortex packed bed scrubbers effectively remove liquid/gas pollutants from airstreams. Sizing is based on required airflow, contaminant concentration, and pollutant type. Air passes through a high surface area material wetted by continuous flow spray nozzles. This maintains a high contact area for the pollutant to react with.
Most commonly our packed bed scrubbers utilise water as the wetting material for the scrubber bed, however this is also often dosed with additional chemicals to create a chemical reaction inside the scrubber.
If possible, the liquid used in the scrubber is re-circulated to reduce water / chemical wastage.
Our Vortex venturi wet scrubbers effectively control dust and fume particulate. We size scrubbers based on required airflow, mass, and pollutant type.
Venturi scrubbers introduce dust/fume laden air and water into the venturi throat. Air and water are accelerated to specified speeds, shearing the water into droplets, and combining it with dust/fume particles before being separated in a cyclonic separator.
Careful consideration of the particle size and properties needs to be made during the design process. The higher the velocity through the throat the smaller the water droplet size. However, a higher velocity results in a higher pressure requirement through the venturi throat and increased energy budget.
If possible, the water used in the scrubber is re-circulated to reduce water usage.