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LiqTech Ceramic Flat Sheet Membrane

The high flux Flat Sheet Membrane (FSM) from LiqTech is designed for submerged outside-in filtration applications.

The high flux Flat Sheet Membrane (FSM) from LiqTech is designed for submerged outside-in filtration applications.
The FSM carrier and the selective layers are made of recrystallized silicon carbide which gives the product some unique advantages such as high flux, total chemical resistance (pH 0-14), and long lifetime.
The FSM is built into a submerged vacuum-driven filtration system, which consists of racks of modules each with multiple FSM's.
● Market-proven
● The second hardest material in the world next to diamonds
● Made by filtration experts
● Selected by market leaders
● Highly flexible & stackable design
Superior Ceramic Flat Sheet Membrane
  • >Unmatched flux
    >Small footprint
    >Excellent thermal properties Unmatched performance
    >Chemically inert Efficient cleaning Robustness
    >Long service life - less maintenance
    >Lowest fouling tendency of any polymeric or ceramic membrane material
  • >Wastewater treatment
    >Wastewater reuse
    >Ground water
    >Drinking water
    >Pre-RO treatment
    >Others

Flat Sheet Membrane Principle (Outside-In) 

The filtration mode is outside-in and cleaning is done by a combination of air-scouring underneath the modules and by back washing along with chemical cleaning.

FSM Datasheet

ELEMENT DATA

Configuration Rectangular with permeate channels inside - Outside-in-filtration
Membrane material Silicon Carbide (SiC)
Substrate material Silicon Carbide (SiC)
Temperature tolerance Up to 800°C/1472°F
Maximum pressure 3bar/43.5psi

APPLICATION DATA

Operating pressure Depends on feed characteristics
Maxlmum operation temperature Determined by system components
Maxlmum chlorine concentration Unlimited
Ph tolerance 0-14
Cleaning Chlorine,acid,caustis,solvents

FLUX

Pore slze Typical flux at 25°C - Ultra pure water @ 1 bar
UF Membrane > 3000 LMH / 1764 GFD

SPECIFICATION SHEET-FSM

Model Element dimensions - A (mm/in) x B (mm/inch) x C (mm/inch) Channel dimension（mm/in） Membrane area (m²/ft²)
FSM500100UF-22 (mm) 100 ± 1.5 x 6 ± 1.0 x 500mm ±2.0 2 x 2mm 0.106 m²
(inch) 3.9 ± .06 x .24 ± .04 x 19.7inch ±.08 .08 x .08 inch 1.1 ft²
Bending tolerances on the concave side:
Side A：1.0mm/.04inch
Side B：N/A
Side C：2.0mm/.08 inch

Highly Flexible & Stackable Rack Design Highly flexible system with state-of-the-art silicon carbide ceramic flat sheet membranes. 

Flat sheet systems are usually pressureless and submerged into a “feed” tank. It’s often a way to compress a large amount of membrane area in a small footprint. LiqTech’s FSM towers can be customized with different rack sizes and tower heights. Permeate is “sucked” out of the racks, aided by the water level in the tank. This means the membrane coating is on the outside of the sheets, and permeate is drawn in, and is an "outside-in" membrane design.

TECHNICAL DATA

Number of FSM membranes / racks Up to 55 FSM per rack / Up to 12 racks
Membrane surface area Up to 5.8 m²/62.4 ft² per rack - Up to 70 m²/753 ft² per tower
Tower/module materlal 316L / 1.4404 or super duplex
pH tolerance 0-14
Maxlmum operating temperature Determined by system components
Operating pressure Depends on feed characteristics
Contact Number