Patent ID: 8758632

Claim:
A radial flow column comprising: a fluid chamber defined by a side wall, a first end wall, and a second end wall; an inner permeable retainer positioned in the fluid chamber; a fluid inlet defined in one of the first end and the second end wall of the fluid chamber, the fluid inlet in fluid communication with a lumen centrally located within the fluid chamber and defined radially inward of the inner permeable retainer, the fluid inlet configured and arranged to introduce fluid to be treated in the radial flow column into the lumen; an outer permeable retainer positioned in the fluid chamber spaced apart from and surrounding the inner permeable retainer; a fluid outlet defined in one of the side wall and the second end wall of the fluid chamber, the fluid outlet in fluid communication with a volume of the fluid chamber defined radially outward of the outer permeable retainer; a media bed compartment formed between the inner permeable retainer and the outer permeable retainer; a media bed disposed within the media bed compartment; and an inflatable bladder biased into the media bed compartment and configured to maintain a predetermined packing density of the media bed.