Fixed Bed
1. The filter or ion exchange medium retained in a vessel. 2. Also refers to media beds which are "contained". That is, filled to the top or to the restraining barrier with filter media and not capable of being expanded during backwashing.
1. The filter or ion exchange medium retained in a vessel. 2. Also refers to media beds which are "contained". That is, filled to the top or to the restraining barrier with filter media and not capable of being expanded during backwashing.