GE超濾膜幻燈片 ZW

1、ZeeWeed 1500 壓力式超濾壓力式超濾 ZW1500Module DimensionsHeight1920 mm (75”)Diameter180 mm (7”)Module WeightMax. Shipping Weight22 kg (50 lb)Lifting Weight22 34 kg (50 75 lb)Membrane PropertiesNominal Membrane Surface Area550 ft2 (51.1 m2)MaterialPVDFNominal Pore Size0.02 micronSurface PropertiesNon-Ionic &am

2、p; HydrophilicFiber Diameter0.9 mm OD / 0.47 mm IDFlow PathOutside-InOperating SpecificationsTMP Range0 to 275 kPa (0 to 40 psi)Max. Operating Temperature40C (104F)Operating pH Range5.0 10.0Cleaning SpecificationsMax. Cleaning Temperature40C (104F)Cleaning pH Range2.0 11.0Max. Cl2 Concentration1,000

3、 ppmModule Design- outside-in permeation- vertical orientation- PVDF, unsupported fiber- fiber ID/OD: 0.47/0.9 mm- diameter: 180 mm (7 in.)- surface area: 550 sqft- housing material: PVC/PPO19201920 mm (76 in.)Rack InfoRack Dimensions12 Module24 ModuleLength1,073 mm (42.25”)2,146 mm (84.5”)Width1,16

4、8 mm (46”)Height2,350 mm (92.5”)Tie-Points and Pipe MaterialPermeate Header8” Sch 80 PVC pipeFeed Header8” Sch 80 PVC pipeWaste Header8” Sch 80 PVC pipeAir Header6” Sch 10 SS pipeKey Differentiators Low fouling membrane chemistryo Leveraging 15+ years of membrane researcho Stable chemistry will not

5、need aggressive hot water cleans to maintain performance High Solids Toleranceo Ability to handle turbidity spikes up to 150 NTU and coagulant dose up to 40 mg/L Less chemical usageo Lower OD fiber allows higher fiber packing density per shell volume o 25 % less chemical volume in shell for same sur

6、face area Shorter module requires lower ceiling height On rack fiber repairs Simplified rack designZeeWeed PFDInlet waterfeed pumpNaOHSodiumOptional for NeutralizationPermeate to product water tankNaOClCitric AcidBisulphite500 micron Strainerbackpulse pump and tankZW1500 Membrane Rackair scour blowe

7、r CIP pump and tankWaste waterProcess CapabilitiesOperating ModesPermeationDead-end filtrationTMP up to 40 psiMaintenance Clean (CEB,EFM)DailyHeating optionalRecirculationRecovery Clean (CIP)MonthlyHeating optionalLonger durationRecirculation/relaxation intervalsTypical flux range35 80 gfd (applicat

8、ion-specific)AirZW1500 Flux Selection GuideWater QualityRecoveryFlux at 20 C, gfdDirect FiltrationAvg turbidity 0 25 NTU, 6 mg/L TOC95%50 Avg. turbidity 75 NTU93%40Enhanced Coagulation2.5 mg/L coagulant (as Al3+), 15 NTU turbidity, 6 mg/L TOC 95%455 mg/L coagulant (as Al3+), 75 NTU turbidity, 10 mg/

9、L TOC92%25Seawater2.5 mg/L coagulant (as Al3+), 25 NTU turbidity95%405 mg/L coagulant (as Al3+), 75 NTU turbidity, 93%30Oxidation35Secondary Effluent0 to 10 mg/L TSS or BOD92%3510 to 25 mg/L TSS or BOD92%3025 to 50 mg/L TSS or BOD92%25Backwash Process Sequence and DurationProcess StepDescriptionDura

10、tion, SecTotal elapsed timeFeed pump ramp-downFeed pump ramp-down and valve rotation1010Pre-aerationFor coagulation applications(20)10 (30)Backpulse pump ramp-upAeration and ramp-up backpulse pump 515 (35)BackpulseAeration and backpulse6075 (95)Backpulse pump ramp- downBackpulse pump ramp- down and

11、valve rotation + aeration off1085 (105)Feed pump ramp-up (feed flush)Feed pump ramp-up for feed flush590 (110)Feed flushFeed flush30120 (140)ProductionValve rotation for productionStep 2Backwash SequenceStep 1: Backpulse ( at 3.4 m3/hr per module) with aeration (at 8.5 am3/hr per module) for 60 seco

12、ndsStep 2: Feed-flush (3.4 m3/hr per module) for 30 secondsBackpulseFeed-flushAirStep 1RejectMaintenance Clean Sequence and DurationProcess StepDescriptionDuration, minTotal elapsed timeFill CIP tank with chemical solution CIP tank filled with permeate, (optional heating), Chemicals mixedStop system

13、00Drain rackDrain rack using feed pump22Transfer CIP ContentPump chemical from CIP to the modules35Recirculate Recirculate CIP solution1520Drain CIP SolutionDrain CIP solution to CIP tank222Chemical FlushFill rack with feed and permeate to neutralization tank527Start systemRecovery Clean Sequence an

14、d DurationProcess StepDescriptionDuration, minTotal elapsed time, minFill CIP tank with chemical solution CIP tank filled with permeate, heated, Chemicals mixed(240 )Stop system00Drain rackDrain rack using feed pump22Transfer CIP ContentPump chemical from CIP to the modules35Recirculate and SoakReci

15、rculate CIP solution for 5 min and soak for 25 min; repeat this cycle 10 times300305Drain CIP SolutionDrain CIP solution to CIP/Neutralizataion tank2307Chemical FlushFill rack and rinse to CIP/neutralization tank5312Start systemCleaning SequenceStep 1: Fill CIP tank with permeate, heat, add chemical and mixStep 2: Drain modules/rackStep 3: Fill with cleaning solutionStep 4: Recirculate 15 minutes (MC)/15 minutes every hour for 5 hours (RC)Step 5: Drain to neutralizati