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Related Manuals for Microdyn Nadir AQUADYN FZ50 Hollow
Summary of Contents for Microdyn Nadir AQUADYN FZ50 Hollow
- Page 1 AQUADYN® FZ50 Hollow Fiber Module Operation Manual...
- Page 2 Contact Europe Americas Asia Germany: +49 611 962 6001 USA: +1 805 964 8003 China: +86 592 677 5500 Italy: +39 0721 1796201 Brazil: +55 11 3378 7500 Singapore: +65 6457 7533 info@microdyn-nadir.com info@microdyn-nadir.com infochina@microdyn-nadir.cn AQUADYN® FZ50 Series Hollow Fiber Module | OPERATION MANUAL MICRODYN-NADIR | REVISION: B | DATE: 01/08/2020...
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Page 3: Table Of Contents
Table of Content 1 Introduction..........................5 Handling & Storage ......................6 SAFETY INSTRUCTIONS ..........................6 PRESERVATIVE SOLUTION ........................6 HANDLING ..............................6 STORAGE ............................... 6 Installation..........................7 DISASSEMBLING ............................7 Operation ..........................8 START-UP ..............................8 TABLE 1. RECOMMENDED START-UP FLOWS & FILTRATION TIMES............. 8 Preservative &... - Page 4 SHORT-TERM STORAGE (2 DAYS OR LESS) ..................11 SHORT-TERM STORAGE (3-7 DAYS) ...................... 11 LONG-TERM STORAGE (LONGER THAN 7 DAYS) ................11 Chemical Cleaning ......................12 CHEMICALS USED FOR CLEANING ......................12 7.1.1 Type of Chemical & Target Contaminants ......................12 TABLE 3.
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Page 5: Introduction
Introduction MICRODYN-NADIR offers a wide variety of hollow fiber modules, including the AQUADYN® FZ50 series. AQUADYN® modules are encased ultrafiltration hollow fiber membrane modules that effectively reduce micro-organisms and suspended solids from water. The AQUADYN® F50-series offers an extremely hydrophilic membrane for surface water with a very high organic pollution. -
Page 6: Handling & Storage
Handling & Storage To ensure proper handling of AQUADYN ® FZ50 hollow fiber modules, please refer to the safety and handling instructions below. SAFETY INSTRUCTIONS Having proper equipment is essential for safely executing the following handling instructions. Appropriate gloves, shoes and safety glasses should be worn at all times. -
Page 7: Installation
Installation When mounting modules to the system, mount the modules where they are not exposed to direct ultraviolet rays like UV lamps or direct sunlight. The central body of the module and the resin parts may deteriorate in direct ultraviolet rays and high temperatures. -
Page 8: Operation
Operation To ensure proper operation of AQUADYN ® FZ50 hollow fiber modules, please refer to the operating limits specified on the product data sheet. START-UP A trial run is recommended prior to actual operation. This eases the membranes into operation and allows purging of any remaining air from the system. -
Page 9: Feed Ph
Change flow direction for 1 minute Flush for 5 seconds Repeat steps 1-4 4.3.1 Feed pH Set the feed pH to 4-8 for long-term operation. Regular adjustments of the feed pH are recommended to keep the feed pH inside this range. Operation outside of this suggested range may shorten the module’s lifetime due to possible membrane degradation. -
Page 10: Backwash
Backwash Contrary to filtration, backwashes are periodically implemented to wash away the contaminants from the membrane surface by implementing flow from the permeate side of the membrane to the feed side. This procedure helps restore membrane performance. BACKWASHING WATER For a chemically enhanced backwash, mix permeate and sodium hypochlorite. Adjust the necessary amount of sodium hypochlorite so that the concentration of free chlorine in the discharged backwash water is 3-5 mg/L. -
Page 11: Offline Treatment
Offline Treatment When operation is stoped for a long period of time, it is necessary to fill the module with a preservative solution to avoid drying of the membrane or bacteria growth. If the sodium hypochlorite is used as a biocide, the effective chlorine may be quickly consumed by soiled material remaining in the system. -
Page 12: Chemical Cleaning
Chemical Cleaning Over time, contaminants may accumulate on the membrane surface and backwashing no longer removes all of the contaminants. If the solids have accumulated on the surface of the membrane, the operating flux of the membrane may decline. In this case, a chemical cleaning is recommended to help remove the contaminants. There are three types of cleaning: flushing with clean water, physical cleaning via backwash, and chemical cleaning. - Page 13 TABLE 4. STANDARD CHEMICAL CLEANING PROCEDURE OF AQUADYN® FZ50 MODULES. Feed Chemical Solution Time Step Description Pressure Temperature (°C) Circulation Flow Rate (m /hr) Concentration (min) (MPa) Measurement of flux (before chemical cleaning) Pure water 2-ports counter pressure Normal temperature Max 14.5 cleaning Measurement of flux...
- Page 14 Operating data – this is where the operating flux is determined (1) Clean water flux before chemical cleaning Pure water counter pressure cleaning (2) ≥ 90% of operating flux (2) Measurement of flux Cleaning with mixed chemical solution (3) ≥ 90% of operating flux (3) Measurement of flux Cleaning with sodium hypochlorite water solution...
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Page 15: Cleaning Steps
7.2.1 Cleaning Steps Discharge feed water from the module. Fill the chemical solution tank with clean water. Pump water to the feed water inlet port of the module and discharge it from the feed water outlet port and the permeate port to discharge the feed water completely. Then, discharge the pemreate fluid from the permeate port at the top of the module so that all air is purged from the module. - Page 16 Water Discharge Permeate Port Feed Water Outlet Backwash Pump Chemical Solution Tank Feed Water Inlet UF Module Water Discharge Supply Pump Figure 3. Backwash flow where discharge water exists the feed water outlet port. Measurement of module performance Measure the flux before cleaning. Section 7.2.2 Measuring the Flux.
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Page 17: Measuring The Flux
If the membrne performance is not sufficiently restored after one chemcial cleaning, repeat the cleaning procedure (Steps 1-8). 7.2.2 Measuring the Flux The clean water flux for AQUADYN ® FZ50 modules is measured using ultrafiltered water at 0.05 MPa feed pressure, an average transmembrane pressure (TMP) of 0.1 MPa and a temperature of 25°C (77°F). -
Page 18: 25°C)
TABLE 5. WATER TEMPERATURE CONVERSION TABLE (CONVERSION TO WATER TEMPERATURE 25°C). Temperature (°C) 1.707 1.701 1.696 1.691 1.685 1.680 1.675 1.670 1.664 1.659 1.654 1.649 1.644 1.639 1.634 1.629 1.624 1.619 1.614 1.609 1.604 1.599 1.595 1.590 1.585 1.580 1.576 1.571 1.566 1.561... -
Page 19: Return Shipment
Return Shipment If a module is to be returned to MICRODYN-NADIR, please fill the module with preservative solution. If a sodium hypochlorite water solution is used, the effective chlorine may be consumed by the remaining contaminants. After filling the module with the preservative solution, please check the free chlorine concentration. If there’s a chance that the preservative may freeze during storage or transportation, please be sure to adopt a measure to prevent freezing. -
Page 20: Disposal Of The Module
Disposal of the Module Always follow proper disposal processes when discharging wastewater or preservative solution or when disposing a UF module. If hazardous substances remain in the module, adopt a necessary measure to dispose of the module properly. AQUADYN® FZ50 Series Hollow Fiber Module | OPERATION MANUAL MICRODYN-NADIR | REVISION: B | DATE: 01/08/2020... -
Page 21: Appendix
Appendix 10.1 DIMENSIONS OF AQUADYN™ FZ50-AC-FUC1582 MODULE AQUADYN® FZ50 Series Hollow Fiber Module | OPERATION MANUAL MICRODYN-NADIR | REVISION: B | DATE: 01/08/2020... -
Page 22: Cut-Off Curve For Aquadyn™ Fz50-Ac-Fuc1582 Module
10.2 CUT-OFF CURVE FOR AQUADYN™ FZ50-AC-FUC1582 MODULE Fig.2 Cut-Off Curve of FUC1582 M o l e c u l a r W e i g h t o f S o l u t e , X 1 0 , 0 0 0 D a l t o n AQUADYN®... -
Page 23: Transmembrane Pressure Vs. Permeate Rate
10.3 TRANSMEMBRANE PRESSURE VS. PERMEATE RATE Transmembrane Pressure = (Feed Pressure + Concentrate Pressure)/2 - Permeate Pressure Module: AQUADYN™ FZ50-AC-FUC1582 Feed: Pure Water Conditions: Dead End Filtration (100% Recovery) Lower feed port was opened and upper one (concentrate port) was closed. AQUADYN®... -
Page 24: Feed Pressure Vs. Permeation Rate
10.4 FEED PRESSURE VS. PERMEATION RATE Feed Pressure: Inlet Pressure at Lower Feed Port Module: AQUADYN® FZ50-AC-FUC1582 Feed: Pure Water Conditions: Dead End Filtration (100% Recovery) Lower feed port was opened and upper one (concentrate port) was closed. AQUADYN® FZ50 Series Hollow Fiber Module | OPERATION MANUAL MICRODYN-NADIR | REVISION: B | DATE: 01/08/2020... -
Page 25: Feed Flow Vs. Module Pressure Drop
10.5 FEED FLOW VS. MODULE PRESSURE DROP Module Pressure Drop = Feed Pressure at Lower Feed Port - Feed Pressure at Upper Feed Port Module: AQUADYN® FZ50-AC-FUC1582 Feed Water: Pure Water Water Temperature: 21.3°C Conditions: No Filtration 1. Permeate ports were closed. 2.
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