Applied Membranes Inc.
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Series HF - 10 to 220 Gallons per Minute
Ultrafiltration (UF) Systems with Hollow Fiber Membranes


Advantages of Ultrafiltration:

  • Low fouling membrane modules

  • Excellent filtration performance with high flux

  • High chemical resistance and temperature tolerance for effective membrane cleaning

  • Very fine nominal pore diameter (0.03 µm)

  • High removal efficiency of bacteria and viruses

  • Dead-end or concentrate bleed flow capabilities

  • Can be periodically back washed and air scoured to improve performance and extend operating life by removing the fouling layer

  • Simple, vertical, modular design allows low cost, compact systems

  • UF Outside-In or Inside-Out Configuration allows for less plugging and higher solids loading, higher flow area and easier cleaning.

Key Features of Applied Membranes Water Filtration Systems:

  • Over 25 years of experience is reflected in our quality

  • Heavy duty powder coated frame

  • SS High pressure components, SS Pump

  • Touch Screen PLC Operation

  • Conservatively engineered for reliable long term performance

  • Factory tested to ensure trouble-free operation


Applied Membranes' Ultrafiltration UF Systems are Available in either Outside-In and Inside-Out Configurations.

  • Outside-In configuration is recommended for applications with feed water higher than 150 ppm total suspended solids.
     

  • Outside-In configuration UF Systems use DOW UF Low fouling Hydrophilic Polyvinylidenefluoride (H-PVDF) Hollow Fiber Ultrafiltration Membranes.  (click for DOW UF Membrane Specifications)
     

  • Inside-Out configuration UF Systems use Hydranautics HYDRAcap Low fouling Hydrophilic Polyethersulfone Hollow Fiber Ultrafiltration Membranes.  (click for Hydranautics UF Membrane Specifications)


Touch Screen P&ID Screen for Inside-Out UF System Shown


Series HF Ultrafiltration System Specifications 

Inside-Out
Model #'s
Outside-In
Model #'s
Capacity Number of elements* Line sizes Dimensions Approx. Weight
GPM GPD m3/hr Inlet
(Inches)
Filtrate 
(inches)
Backwash
(inches)
Length Width Height
lb kg
in. cm. in. cm. in. cm.
HF60-1I HF60-1IE 10 14,400 2.3 1 1.5 1.5 1.5 60 152 30 76 76 193 1000 454
HF60-4I HF60-4IE 40 57,600 9.0 4 4 4 4 80 203 30 76 76 193 1500 680
HF60-10I HF60-10E 100 144,000 22.7 10 4 4 4 110 279 50 76 114 290 3000 1360
HF60-14I HF60-14E 140 201,600 31.8 14 6 6 6 140 356 50 76 114 290 4200 1905
HF60-18I HF60-18E 180 259,200 40.9 18 6 6 6 180 457 50 76 114 290 5500 2495
HF60-22I HF60-22E 220 316,800 50.0 22 6 6 6 220 559 50 76 114 290 6300 2858

*Systems of any capacity can be put together by using multiple modules

 


Applied Membrane's Ultrafiltration Systems use inge Hollow Fiber Ultrafiltration Modules.

About  inge Hollow Fiber UF Modules

Multibore® membrane - The patented Multibore® membrane technology combines seven individual capillaries in a highly robust fiber – an arrangement that significantly increases the membrane's stability and eliminates the risk of fiber breakage. The membrane provides a secure barrier against suspended solids, bacteria, viruses and other microorganisms and supplies a consistently high level of filtrate quality, even in cases where the composition of the original water varies.

dizzer® module - Compact and high-capacity ultrafiltration. Thanks to an optimum hydrodynamic design combined with the top-notch treatment efficiency of the Multibore® membrane, the dizzer® module sets new standards in ultrafiltration technology.

T-Rack® - Space-saving and efficiency-boosting: the T-Rack® is an integrated, ultracompact rack system that is equipped with dizzer® XL ultrafiltration modules. The inlet and outlet lines are already integrated in the end caps – a design feature that makes the system's footprint considerably smaller.

 

Systems using Hydranautics HYDRAcap® Hollow Fiber Ultrafiltration Modules and DOW UF / Omexcell Ultrafiltration Modules are also Available

About  Hydranautics HYDRAcap Hollow Fiber UF Modules:

HYDRAcap products contain capillary fiber membrane made from a hydrophilic polyether sulfone, with a nominal molecular weight cutoff of 150,000 Daltons.  Feed water enters the center (lumen) of the fibers and permeates through the membrane radially outward, producing a filtrate turbidity typically less than 0.07 NTU.  A magnified, cross sectional view of the membrane is shown in figure 1 to the right.

The HYDRAcap modules in these systems are operated in the directional flow ("dead-end") method, where all of the feed water is converted to filtrate.   The Ultrafiltration modules are regularly backwashed to restore permeability, which declines as solids build up on the membrane.  The pH tolerance (1.5 - 13.0) of the membrane allows for the addition of chemicals for cleaning and chemically enhanced backwashing.

Hollow Fiber Membrane UF Ultrafiltration
Figure 1 - Hollow Fiber Membrane

About DOW UF Modules:

The DOW™ Ultrafiltration module utilizes a double-walled hollow fiber (capillary) PVDF membrane which has a very small nominal pore diameter for PVDF material that allows for the removal of all particulate matter, bacteria and most viruses and colloids. Despite the small pore diameter, the membrane has a very high porosity resulting in a flux similar to that of micro-filtration (MF) and can effectively replace MF in most cases.

Systems designed with DOW™ Ultrafiltration use an outside-in flow configuration which allows for less plugging, higher solids loading, higher flow area and easy cleaning. The primary flow design is dead-end filtration but the module can be operated using a concentrate bleed. Dead-end filtration uses less energy and has a lower operating pressure than the concentrate bleed, therefore reducing operating costs.

Typically, DOW™ Ultrafiltration is operated at a constant permeate flow. The transmembrane pressure (TMP) will naturally increase over time and the module can be cleaned periodically by back flushing and air scouring to remove the fouling layer. Disinfectants and other cleaning agents can be used to fully remove and prevent performance loss due to biological growth as well as other foulants.

About DOW OMEXELL Ultrafiltration Membranes:

The OMEXELL™ ultrafiltration modules are made from high strength, hollow fiber membranes that have excellent features and benefits:

  • 0.03 μ nominal pore diameter for removal of bacteria, viruses, and particulates including colloids to protect downstream processes such as RO

  • PVDF polymeric hollow fibers for high strength and chemical resistance allows long membrane life

  • Hydrophilic PVDF fibers for easy cleaning and wettability that help maintain long term performance

  • Outside In flow configuration for high tolerance to feed solids that help reduce the need for pretreatment processes

  • U-PVC housing, helping to eliminate the need for costly pressure vessels


What is Ultrafiltration (UF)?

Ultrafiltration or UF is a pressure driven membrane separation process that separates particulate matter from soluble components in the carrier fluid (such as water). UF membranes typically have pore sizes in the range of 0.01 - 0.10 µm and have a high removal capability for bacteria and most viruses, colloids and silt (SDI). The smaller the nominal pore size, the higher the removal capability. Most materials that are used in UF are polymeric and are naturally hydrophobic. Common polymeric materials used in UF include: Polysulfone (PS), Polyethersulfone (PES), Polypropylene (PP), or Polyvinylidenefluoride (PVDF). Although these materials can be blended with hydrophilic agents, they can reduce the membranes ability to be cleaned with high strength disinfectants such as hypochlorite that impacts removal of bacterial growth.

Click here to view the article "About Ultrafiltration" by Dr. Gil Dhawan, President of Applied Membranes, Inc
.

 

Series WMF 2,200 to 20,000 GPD Wall Mount Ultrafiltration Systems (UF)
Hollow Fiber Wall Mount UF Ultrafiltration System
Series WMZ, Economy 1,600 to 10,000 Wall Mount Ultrafiltration Systems (UF)
Hollow Fiber UF Wall Mount Ultrafiltration Systems
Commercial/Industrial Ultrafiltration
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Commercial/Industrial Ultrafiltration Systems
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