
HICAP, Aqua Soft Resin, 1 CF Bag, C100E
Aqua Soft Resin, 1 CF Bag Aqua Soft Resin 1 Cubic Foot Bag The pressure drop across a bed of ion exchange resin dependson the particle size distribution, bed depth, and voids volume ofthe exchange material, as well as on the flow rate and viscosity ofthe influent solution. Factors affecting any of these parameters—such as the presence of particulate matter filtered out by the bed,abnormal compressibility of the resin, or the incompleteclassification of the bed—will have an adverse effect, and resultin an increased head loss. Depending on the quality of theinfluent water, the application and the design of the plant, serviceflow rates may vary from 10 to 40 BV/h. During up-flow backwash, the resin bed should be expanded involume between 50 and 70% for at least 10 to 15 minutes. Thisoperation will free particulate matter, clear the bed of bubbles andvoids, and reclassify the resin particles ensuring minimumresistance to flow. When first putting into service, approximately30 minutes of expansion is usually sufficient to properly classifythe bed. It is important to note that bed expansion increases withflow rate and decreases with influent fluid temperature. Cautionmust be taken to avoid loss of resin through the top of the vesselby over expansion of the bed.