Is there a way to scale down batch filtration through bag and cartridge filters? We experience variable filtration time of suspensions of different batches of active charcoal and would like to evaluate the performance of the filter media on a lab scale (0.5 - 5 L). In the plant we pressure filter active charcoal suspensions from a batch reactor (stirred tank) through a three-stage filter system: a 5 um bag filter, a 1 um cartridge filter, and a 0.2 um (absolute) cartridge filter. The setup uses 10 in cartridges.
Topic: Is there a way to scale down batch filtration through bag and cartridge filters?8 November 2011
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Ernest Mayer Forum Moderator 52 Posts
Re: Is there a way to scale down batch filtration through bag and cartridge filters?8 November 2011 at 1:29pmThe bag media can easily be tested via a 47mmD disc holder with a peristaltic pump to mimic the flowrate to the actual full-scale bag. The same can be done with the cartridge filter media provided they use pleated ones. If the 1um one is a spun type (e.g., depth) then this cannot be done, In this case, one can test 1" or 4" long cartridges of the same type. I would presume that the 0.2um absolute filter is pleated since they generally are.