Jonas Gerson and Ian Swyer Polishing Filter Jonas Gerson and Ian Swyer

Background Definition: Polishing filters… “…are used to separate liquids only having very small quantities of solid impurities…”  In this case to filter out the impurities from the output stream from a centrifuge

Process Situation

How it Works In-Line T-Line

Design Selection Need: Available Options Maximum flowrate of 27.7 L/min Pore size of 0.2 µm Available Options Companies: Pall, Millipore, MKS Need both disposable filters and housing It was found that 1 In-Line / T-Line filter housings using 10 inch disposable cartridge filters provide the best utility for the money The membrane areas were compared to the maximum flowrate needed, and compared against equivalent flux. Optimized for pressure drop and cartridge costs

Pressure Drop and Flowrates for Millipore SHF Filters

Suppliers and Prices Final Design 2000 Cartridge Housing Millipore Express SHF Cartridge Filter Suppliers and Prices Final Design $1,196 per unit, $859 per 3 Capital Cost for Unit: $ 1482 Operating per Batch: $ 286 Per Year: $ 7400