Microza Membranes0 pages

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	Microza Membranes

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Description

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Polymeric Membrane Morphology

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Microza* ultrafiltration membranes are unique in their construction. Every

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membrane has an asymmetric structure,with a membrane layer both on the

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inside, and on the outside of the fiber, overlaying a core comprising a very

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open support for excellent flow characteristics, and a central strengthening

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layer for outstanding fiber durability in long-term service. Microza

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ultrafiltration membranes are resistant to flow In both directions, so there is

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no risk of delaminatlon or membrane rupture during accidental back-

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pressure. In fact, in many installations, backpulsing can be used to

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maintain flux during extended run times.

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Microza micofiltration membranes have smooth inner and outer membrane skins with a highly porous

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symmetrical support structure giving high-flow rates. These modules can also be backflushed. All Microza

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membranes have surfaces that minimize entrapment and facilitate cleaning. .All Microza membranes are

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manufactured in a single step, and are not composed of laminates. Membranes and modules are

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subjected to rigorous quality control to ensure consistency of performance, durability in service, and module

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integrity for the most demanding applications.

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Membrane Types

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Polysulfone (PS)

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Polysulfone membranes exhibit excellent resistance to pressure, temperature and aggressive cleaning

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regimes. Very low affinity and adsorption characteristics results in high product recoveries, and long service

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life.

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Features

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r Combination of high-strength and high-flow due to unique membrane construction

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► Double-skin provides assurance of removal rating

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► High-strength fiber allows reverse filtration to assist cleaning in difficult applications

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* Available in arange of sizes from 0.015 m2 (0.16 ft2) to mere than 12 m2 C125 ft2}

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f All SPandVP modules maybe hot water sanitized: up to 95 "C (203 CF)-SIP and SLP, or 90 CC (194 CF)

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- SEP and SAP; and all may run continuously at 80 "C [176 °F)

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► SP Modules maybe autcclaved in single use applications

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► VIP 6000 MWCO version steam-sterilizable up to 50 cycles at 125 =C (257 T)ata differential pressure of

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100 mBar

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t SV modules are designed for maximized recovery in bulkfermentatlon, limited to 50 CC (122 °F)

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* Compatible with a wide range of cleaning agents, up to 5000 ppm sodium hypochlorite or 4% sodium

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hydroxide

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► Meets the specification for biological tests listed In the current revision of USP for class VI plastics at 121 "

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C [249 "F)

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► pH range 1-14

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Polyacylonitrile (PAN)

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PAN membranes are ideally suited to bulk process applications, such as the purification of enzymes. They

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exhibit high-strength, coupled with high flux rates, minimizing installation sizs. PAN has a lew fouling

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characteristic for these applications, simplifying cleaning.

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Features

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► Hydrophilic polyacrylonitrile membrane provides low fouling and excellent flux recovery

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► Combination of high-strength and high-capacity due to unique membrane construction

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► High-strength fiber allows reverse filtration to assist cleaning In difficult applications

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► Available In arange of sizes from 0.012 m2 (0.13 ft2) to more than 40 m2 (425 ft2)

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► Compatible for continuous operation up to 50 'C (122 °F)

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► Easily cleanable in most biological applications using minimum chemicals or detergents

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► Meets the specifications for biological tests listed in the current revision of USP for class VI plastics at 121

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"C [249 "F)

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► LGV and LOV modules especially optimized for raw water duty

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► pH2-10

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