3M MEMBRANA Liqui-Cel Cleaning Manuallines Download Page 1 | Manualshive

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Cleaning Guidelines

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Summary of Contents for MEMBRANA Liqui-Cel

Page 1: ...Cleaning Guidelines ...

Page 2: ...XII Contactor Decontamination for Return to 3M 24 TABLES Table 1 Sanitizing Guidelines 4 Table 2 Cleaning Solution Flow Rate and Backpressure Guidelines 7 Table 3 High Temperature Sanitization Guidelines 9 Table 4 Recommended Cleaning Procedure For Normal Biological Fouling 11 Table 5 Recommended Cleaning Procedure For Severe Fouling 12 Table 6 Cleaning Protocol for Mineral Deposit Removal 16 Tabl...

Page 3: ... contactors are intended for installation and operation by qualified installers and operators in accordance with all operating guidelines installation instructions and any other industry requirements Use in any other application may not have been evaluated by 3M and maylead to an unsafe condition Explanation of Safety and Related Symbols Warning Explosion Warning Crush or Impact Caution Lifting or...

Page 4: ...hile it contains liquid To reduce the risks associated with chemicalexposure Use face protection protective gloves and appropriate eye protection when handling and using all cleaning chemicals Ensure any tubing or piping used to circulate the cleaning solution is not blocked kinked frayed cracked or obstructing flow in any way Ensure the all tubing and piping connections are leak free Avoid splash...

Page 5: ... Liqui Cel Membrane Contactor product data sheet for maximum temperature and pressure ratings Take into account the rise in temperature that occurs during a physical or chemical reaction such as mixing of water with caustic soda or sulfuric acid or mixing of acids and bases or from pumping An aggressive cleaning protocol may clean the contactor in a shorter time period but can also reduce the cont...

Page 6: ...m number of 30 minute cycles that the contactor can be subjected to using this solution at room temperature c Assume the desired number of cycles will be 365 times per year and the contactor will have a lifetime of 3 years d Should this cleaning chemical protocol be used Solution a Divide 4800 hours by 2 Total maximum allowed cumulative exposure time is about 2400 hours b Divide 2400 hours by 0 5 ...

Page 7: ...tive exposure time is about 24 hours b Divide 24 hours by 0 5 hours 30 minutes Total number of cycles is about 48 c Using 365 cycles per year and an expected lifetime of 3 years the total number ofexposure cycles is 1095 365 3 years It would NOT be safe to use this chemical for daily cleaning for 30 minutes per day at 200ppm concentration at room temperature since the required number of cycles 109...

Page 8: ...d water is recommended for mixing cleaning solutions Water containing metals such as Mg iron Al and SiO2 may precipitate on to the membrane surface when there is a pH shift in thewater CAUTION To reduce the risks associated with damaging the membrane contactor For all 2 5x8 inch 4 inch and 10 inch membrane contactors gas side pressure should never exceed liquid side pressure duringcleaning WARNING...

Page 9: ...1 2 3 m3 h 8 x 80 60 80 gpm 13 6 18 2 m3 h 5 10 gpm 1 1 2 3 m3 h 10 x 28 30 40 gpm 4 5 9 0 m3 h 10 20 gpm 2 3 4 5 m3 h 14 x 28 50 60gpm 11 4 13 6 m3 h 10 20 gpm 2 3 4 5 m3 h 14 x 40 100 150 gpm 22 7 34 1 m3 h 10 20 gpm 2 3 4 5 m3 h MiniModules operate with liquid on thelumenside To prepare a cleaning solution when using untreated raw water it is important to know the water chemistry We recommend u...

Page 10: ...ssociated with hot surfaces Do not touch the membrane contactor during a hot sanitization cycle and allowenough time for the surface of the membrane contactor to cool To reduce the risks associated with damaging the membrane contactor For all 2 5x8 inch 4 inch and 10 inch membrane contactors gas side pressureshould never exceed liquid side pressure duringcleaning Do not expose the membrane to air ...

Page 11: ...Sanitization HWS Guidelines for Stainless Steel Housings with X40 Fiber in 4 and 10 inch sizes and for X 50 in 4 inchonly Maximum Temperature Maximum Operating Pressure Maximum number of sanitations 85 ºC 185 ºF 30 psig 2 11 kg cm2 1000 NOTE During HWS the lumenside should have a small continuous flow of N2 or other inert gas to protect the membrane from oxidation In addition always purge the lume...

Page 12: ...ted using the minimal temperatures and pressures required to clean the contactor CAUTION To reduce the risks associated with hot surfaces Do not touch the membrane contactor during a hot sanitization cycle and allow enough time for the surface of the membrane contactor to cool To reduce the risks associated with environmental contamination At the end of useable life dispose of the membrane contact...

Page 13: ... solution pH is achieved 6 Purge lumens CO2 N2 air at maximum flow rate If operating in combo mode use maximum sweep gas in combination with the vacuum pump Until no water droplets appear from exit sweep port Do not use any commercial cleaner that containssurfactants B Recommended cleaning procedure for severe fouling Wet out refers to a condition of the membrane when it has lost its hydrophobic p...

Page 14: ...sphoric or 3 hydrochloric or a combination of 3 Nitric and 3 phosphoric acid solution or 3 Nitric and 3 HCL using filtered 10 micron water at ambienttemp 1 to 2 hrs 7 Drain contactor 8 Water flush Once through 20 to 30 min 9 Drying Inert gas is preferred Clean dry oil free air can also be used Do not exceed 122 ºF 50 ºC gas temperature when using air to dry the contactors See section VIII 10 Membr...

Page 15: ...13 Liqui Cel MembraneContactors Cleaning Guidelines Shellside Lumenside Illustration 2 Flow Schematic for Severe Biological SoilRemoval F P Flow Indicator Pressure Gauge Valve Drain P Drain Drain F P ...

Page 16: ...O2 may precipitate on to the membrane surface when there is a pH shift in thewater CAUTION To reduce the risks associated with damaging the membrane contactor For all 2 5x8 inch 4 inch and 10 inch membrane contactors gas side pressure should never exceed liquid side pressure duringcleaning Do not expose the membrane to air when liquid or gas temperatures exceed 30 C WARNING To reduce the risks ass...

Page 17: ... inlet water source it is likely that they will precipitate on the membrane surface If CO2 is used as a sweep gas precipitation can occur depending on the concentration and the water pH shift For aluminum precipitation follow the mineral deposit removal procedure For silica precipitation refer to the Biological Soil Removal Procedure section VI but increase the caustic concentration to 5 5 by weig...

Page 18: ...recipitate on to the membrane surface when there is a pH shift in thewater CAUTION To reduce the risks associated with damaging the membrane contactor For all 2 5x8 inch 4 inch and 10 inch membrane contactors gas side pressure should never exceed liquid side pressure duringcleaning Do not expose the membrane to air when liquid or gas temperatures exceed 30 C WARNING To reduce the risks associated ...

Page 19: ...17 Liqui Cel MembraneContactors Cleaning Guidelines Illustration 4 F P Flow Indicator Pressure Gauge Valve Recirculation P Once through Drain P P F Air Drain ...

Page 20: ... on page 20 Use clean dry and filtered 0 2 micron gas at the flow rates shown in Table 8 Keep the lower lumen and shellside portsopen Discontinue the gas flow when the water discharge rate decreases to a few drips Close the bottom shellside port when finished Table 7 Bulk Water Removal Conditions Liqui Cel Membrane Contactor Size Gas Flow Rate scfm MiniModules and 2 x 6 0 5 scfm 0 84 m3 hr 2 5 x 8...

Page 21: ...lustration 5 Bulk Water Removal Initial Drying Step F P Flow Indicator Pressure Gauge Valve F P Shellside Shellside Lumenside Lumenside Keep liquid outlet port open gas can exit through the port Liqui Cel Membrane Contactor Size Gas Flow Rate Estimated Drying Time 2 x 6 0 5 scfm 0 84 m3 hr 1 hr 60 ºC 140 ºF 2 5 x 8 1 scfm 1 7 m3 hr 1 hr 60 ºC 140 ºF 4 x 13 5 scfm 4 hr 60 ºC 140 ºF 4 x 28 10 scfm 1...

Page 22: ...0 Illustration 6 Final Drying F Flow Indicator P Pressure Gauge Valve Maximum Gas Pressure 10 psig 0 70 kg cm2 P Hot filtered gas Typically 122 F 50 C Lumenside Lumenside Close liquid outlet port so gas is forces to exit through the gas ports Shellside ...

Page 23: ...ide outlet valve 3 Fill the shellside with filtered 10 micron water Slowly apply 60 psig 4 2 kg cm2 pressure to the shellside 4 Measure the drip rate from the lumenside port for 1 hour 5 Release the shellside pressure by slowly opening the outlet valve Drain the contactor When the liquid side of contactor is pressurized with water but no strip medium is applied tothe gas side it is normal for a sm...

Page 24: ...te to room temperature prior to introducing water Humidity It is recommended that contactors be stored at low to moderate humidity levels 60 relative humidity Humidity will not affect the components of the contactor but exposure at high humidity levels may affect the integrity of the cardboard boxes Storage Position Store the contactors in the horizontal position Ten inch contactors with SS housin...

Page 25: ... in a clean leak proof plastic bag Write the RGA number on the outside of the shipping box If non human or other non primate blood or blood products were used in the contactor follow your established normal cleaning protocol In addition flush the contactor with water until the rinsed water is completely clear Continue rinsingfor 30 more minutes to ensure the complete removal of any blood product P...

Page 26: ...TRADE If the 3M product does not conform to this warranty then the sol Limitation of Liability Except where prohibited by law 3M will not be liable for any loss or damage arising from the 3M product whether direct indirect special incidental or consequential regardless of the legal theory asserted including warranty contract negligence or strict liability 3M Membrana and Liqui Cel are trademarks o...

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