Reverse Flow Adsorption Column for Particulate Purging

The patent applies reverse flow technique where the aqueous medium is periodically circulated in the opposite direction through the adsorption material. This inversion of normal flow direction prevents particulate accumulation by flushing particles out of the adsorption bed, thereby maintaining low back-pressure while continuing to remove contaminates effectively.

The system implements periodic reversal of flow direction through the adsorption column. Instead of continuous unidirectional flow, the system alternates between forward flow (for contaminate removal) and reverse flow (for particulate evacuation), creating a periodic action that simultaneously achieves contaminate removal and prevents clogging.

Rather than performing traditional backwash that concentrates particulates for disposal, the patent uses reverse flow to redistribute and flush particulates out with the treated water. This inversion of the backwash concept eliminates the need for separate particulate removal and disposal operations, significantly reducing costs especially for radioactive materials.

The patent converts the harmful effect of particulate accumulation into a beneficial process by using the same water flow that carries contaminants also to flush out particulates during reverse flow. The treated water that would normally be discharged becomes the medium for particulate removal, turning a potential harm (particulate clogging) into a benefit (self-cleaning system).