Activated Carbon Depth Filter Sheets

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Description

Powdered Activated Carbon (PAC) plays a critical role in the chemical, food & beverage industries, where it is commonly used for decolorization, removal of undesired by-products, and correction of taste, odor, and color profiles. However, the use of traditional bulk PAC has significant drawbacks in terms of handling the bulk carbon powder, cleaning process equipment, and the time and costs associated with carbon removal from the process. In contrast, immobilized activated carbon provides significant advantages in handling, cleaning, and cost saving. Our Activated Carbon Series filter media alleviate these challenges by incorporating activated carbon within a robust matrix of cellulosic fibers, fully capitalizing on the benefits of immobilized carbon over conventional PAC. Moreover, AC Series immobilized carbon filter media exhibits superior adsorption efficiency compared to an equivalent amount of bulk PAC, significantly reducing overall process time and increasing product recovery.

Advantages of using Immobilized Activated Carbon vs. Bulk PAC

Category Bulk PAC Process AC Series Filter Advantage Key Improvements
Dusty&Safety Dust generation;
Potential health/safety risks		 Dust-free;
No cleaning required.		 Eliminates fire risks;
Improved health and safety.
Process Steps Complex multi-step process Single-step adsorption,
decolorization,and filtration		 Reduces labor,lowers costs,
shortens process time.
Process Times Long prep,contact,and removal times. Constant flow.
Rapid adsorption.		 30-50%faster.
Energy/resource savings.
Cleanliness &Maintenance Residues require cleaning.
Batch contamination risks.		 No residues.
Minimal downstream filtration.		 Lower solvent costs.
No cleaning downtime.

Quality

  • Filter sheets produced in a controlled environment
  • Manufactured according to ISO 9001 certified Quality Management System

Food Contact Compliance

Please contact Membrane Solutions for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.

Applications

  • Decolorization and removal of organic impurities in fine chemica
  • Decolorization of sugar syrups
  • Correction of taste and color in juice and beer applications
  • Correction of off color, flavor and odors in distilled spirits

Adsorption Capability

The pore size distribution of activated carbon determines its specific adsorption mechanisms. Key properties such as iodine number, methylene blue adsorption capacity, and molasses number define its performance characteristics. Pore sizes vary between micropores, mesopores and macropores. Macropores and mesopores generally serve as pathways for molecules to enter carbon particles and are critical to adsorption kinetics. Macropores function as transport pathways, while adsorption occurs in mesopores and micropores. small molecules, such as methylene blue(molecular weight: 319.86 Da), are primarily captured in micropores. Therefore, the methylene blue dynamic binding capacity is widely used by activated carbon manufacturers as a reference for decolorization efficiency. For Ac Series depth filter sheets,over 200 g/m2 methylene blue is adsorbed.

Characterization

Series Code Grade Mass Per Unit
Area(g/m²)		 Thickness
(mm)		 Typical Water
in Permeability[1]
(L/min/m²)		 Ash Content
(%)		 Endotoxin
Content
(EU/ml)
AC Series C02 CAC01 1200-1400 3.6-4.0 160  <2 <0.125
[1] The permeability was measured under test conditions with deioized water at Δp of 1 bar (14.5 psi). And, the water value is not related in any way
to the actual filtration flow rate

Installation Guide

>>Handling Precautions
  1. Depth filter sheets should be carefully handled into the plate and frame filter during installation to maintain structural integrity
  2. Avoid banging, bending, and rubbing the sheets
  3. Discard sheets with visible damage prior to use

 

>>Direction Control
  1. Rough Surface (Unfiltered Side): Faces the feed stream inlet
  2. Smooth Surface (Filtrate Side): Contacts the polished filtrate plate
 
>>Critical Alignment
  1. Ensure smooth filtrate side aligns with clean plate grooves
  2. Verify directional arrows on sheet edge match flow indicators

Sterilization and Sanitization (Optional)

Type Temperature℃(°F) Maximum Differential Pressure psi(bar) Duration(min)
Autoclave 121(249.8) 7.2(0.5) 20 
Hot Water 90(194) 14.5(1.0) 30 

Operating Conditions

>>Filter Preparation

In order to increase throughput and to optimize economic efficiency, Membrane Solutions recommends pre-rinsing the closed filter with at least 50 L/m² clean water before initial use, unless this step was already performed after sterilization.

Available Sheet Formats

Rectangular Sheets
  • 200 mm x 200 mm (7.87" x 7.87"）
  • 400 mm x 400 mm (15.8" x 15.8")
  • 600 mm x 612 mm (23.6" x 24.1")
Special formats are available on request.

Ordering Informations

Product Type Code Shape* Size* Series
CRBD C02 R 200200  AC
CRBD C02=CAC01 R=Rectangular 200 mm x200 mm
400 mmx400 mm
600 mmx612 mm		 AC=AC Series
*Special formats are available on request, and please contact Membrane Solutions

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