Seitz® AKS4 Series Depth Filter Sheets product photo Primary L

Seitz® AKS4 Series Depth Filter Sheets

For Color and Flavor Correction

Seitz AKS4 series depth filter sheets were developed to satisfy general purpose carbon adsorption applications in the food and beverage industry.

Powdered activated carbon (PAC) is widely used in the food and beverage industry for adsorption applications. The use of bulk PAC has significant drawbacks relating to the handling of bulk carbon powder, cleaning of the process equipment, as well as time and costs associated with carbon removal from the process.

Seitz AKS immobilized carbon filter media alleviates these concerns by incorporating activated carbon within a matrix of cellulosic fibers. This immobilized carbon media can be coupled with a downstream protective filter paper to prevent any possible carbon particle shedding downstream of the filter. Additionally, the adsorption efficiency of Seitz AKS immobilized carbon filter media is greater than an equivalent amount of bulk powdered activated carbon (PAC), reducing overall process time and increasing product yield. An internal comparative study using the same carbon grade showed up to 150 % better color removal efficiency when compared to bulk PAC.

 
Features Benefits
Carbon-impregnated media with a homogeneous and consistent matrix
  • Free of carbon dust
  • Simplified handling and cleaning
  • When using protection paper downstream, no further trap filtration required
High adsorption efficiency as compared to PAC
  • Reduction of overall process time
  • Increased product yield
  • Good permeability with excellent filtrate quality
General-duty media targeted to food and beverage industry needs High economic efficiency due to a long
service life
 


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Description

For Color and Flavor Correction

Seitz AKS4 series depth filter sheets were developed to satisfy general purpose carbon adsorption applications in the food and beverage industry.

Powdered activated carbon (PAC) is widely used in the food and beverage industry for adsorption applications. The use of bulk PAC has significant drawbacks relating to the handling of bulk carbon powder, cleaning of the process equipment, as well as time and costs associated with carbon removal from the process.

Seitz AKS immobilized carbon filter media alleviates these concerns by incorporating activated carbon within a matrix of cellulosic fibers. This immobilized carbon media can be coupled with a downstream protective filter paper to prevent any possible carbon particle shedding downstream of the filter. Additionally, the adsorption efficiency of Seitz AKS immobilized carbon filter media is greater than an equivalent amount of bulk powdered activated carbon (PAC), reducing overall process time and increasing product yield. An internal comparative study using the same carbon grade showed up to 150 % better color removal efficiency when compared to bulk PAC.

 
Features Benefits
Carbon-impregnated media with a homogeneous and consistent matrix
  • Free of carbon dust
  • Simplified handling and cleaning
  • When using protection paper downstream, no further trap filtration required
High adsorption efficiency as compared to PAC
  • Reduction of overall process time
  • Increased product yield
  • Good permeability with excellent filtrate quality
General-duty media targeted to food and beverage industry needs High economic efficiency due to a long
service life
 
Applications
  • Dechlorination of water
  • Correction of off color, flavor and odors in distilled spirits
  • Decolorization of sweetener and sugar syrups
  • Color correction in juice and beer application
  • Gelatin decolorization and deodorization
Specifications

Food Contact Compliance

  • Food contact compliant filters are available. Please consult the Declarations of Compliance for applicable part numbers at the links below.
  • Seitz® AKS4 Series Depth Filter Sheets Declaration of Compliance

Main Constituents

  • Cellulose, powdered activated carbon, diatomaceous earth (DE, Kieselguhr)

Adsorption Capability

At an optimized flow rate, the probability of contact between the impurities and carbon particles is greater in carbonimpregnated sheets. This is due to process fluids more efficiently contacting carbon particles immobilized into a sheet matrix. Because of the depth (thickness) of the sheet, it is possible to consider the structure as being made up of a series of layers containing PAC. Having a depth of PAC and passing the fluid at an optimal flow rate through that depth enables maximum utilization of the carbon.

Macro- and mesopores can generally be regarded as the highways into the carbon particle, and are crucial for adsorption kinetics. Macropores are used for the transport, and adsorption occurs in the meso- and micropores.

Small molecules, such as methylene blue, which has a molecular weight of 319.86 Dalton, are mainly captured in micropores. Typically, over 20 g/m2 methylene blue is adsorbed.

Characterization

 
Sheet with Protection Paper Mass per Unit Area g/m2 Thickness mm Ash % Water Permeability1 l/m2/min (gal/ft2/min)
No 1050 3.8 13 291 (7.2)
Yes 1050 3.8 13 100 (2.5)
 
These figures have been determined in accordance with in-house test methods and the methods of the Technical / Analytical Work Group within the European Depth Filtration Association.

Regeneration

Depending upon the application and the nature of the adsorbed contaminants, AKS series filter sheets may be regenerated by means of rinsing with clean water in the forward direction. However, the achievable regeneration efficiency must be determined by monitoring filtrate quality.

Sterilization and Sanitization

 
Method Temperature °C (°F) Maximum Differential Pressure Bar (psi) Time2 Cycle min
Steam 125 (257) 0.5 (7.2) 20
Hot Water 90 (194) 1 (14.5) 30
 

1The permeability was measured under test conditions with clean water at 20 °C (68 °F) and a Δp of 1 bar (14.5 psi).
2The actual time required may vary as a function of the process conditions.
Performance

Quality

  • Filter sheets produced in a controlled environment
  • Manufactured according to ISO 9001:2008 certified Quality Management System
Type
Sheet Filters and Modules
Use
Adsorption, Clarification, Filtration, Separation
Ordering Information

Available Sheet Formats

Rectangular Sheets
  • 400 mm x 400 mm (15.8" x 15.8")
  • 600 mm x 612 mm (23.6" x 24.1")

Other formats are available on request.

Seitz K series filter sheets are also available in SUPRAdisc™ II module configurations.

Please contact Pall.
Application
Color/Flavor Adjustment, Activated Carbon Treatment for Color Removal, Activated Carbon Treatment for Odor Removal
Segment
Spirits
Wine