Activated Alumina Filter Cartridges
General Information

Activated alumina is a media produced by the controlled calcination of alumina trihydrate. It has been used for the removal of undesirable contaminants such as fluoride, hydrogen chloride, hydrogen sulfide, carbonyl sulfide, carbon dioxide, arsenic, alcohols and ethers.

Activated alumina cartridges have been used extensively to remove contaminants at various concentration levels from various commercial and aqueous industrial waste streams.

Activated Alumina Filter Cartridges:
Activated alumina filter cartridges offer the advantages of contaminant removal and filtration treatment. The use of these cartridges eliminates problems associated with treatment using bulk media and the need for a separate filtration system. Our activated alumina cartridge is currently available in 2 3/4" outside diameter and 10” length. These cartridges are designed to treat liquids under various flow rate conditions. Contaminant concentrations and liquid flow rates are usually considered in determining the size and number of cartridges required for treatment. The activated alumina cartridges are also designed for usage in single or multiple tube vessels.
The prefiltering outer shell consists of a strong, non-corroding, cylindrical polyethylene shell capped at both ends with ethylene-propylene end caps. There are approximately 0.64 lbs of activated alumina media per 10 inch equivalent cartridge (2 1/4" diameter). The flow of liquid through the cartridge is from the outer porous shell through the activated alumina media. This process allows for the removal of organic and inorganic contaminants. The liquid then flows towards the inner core through a 3 micron wound layer of polypropylene media.

Activated Alumina Filter Media Applications:

• Hydrogen peroxide manufacturing
• Polyethylene production
• Defluorination of alkylation product streams
• Water treatment (fluoride and arsenic removal)
• Aqueous treatment (removal of hydrogen sulfide, carbonyl chloride and hydrogen chloride)
• Off-gas treatment (carbon dioxide, hydrogen chloride and hydrogen sulfide removal)
• Removal of alcohol and ether from liquid streams

Activated Alumina Media Characteristics:

• Activated alumina is produced by a careful controlled calcination of alumina trihydrate
• Can be blended with other absorbents such as carbon, clay minerals, molecular bonding agents and elastomeric polymers
• Mechanically strong and highly resistant to abrasion, breakage and deterioration during usage thereby insuring a long life service
• Relatively inert, non-toxic, non-corrosive and not prone to oxidation
• Good performance, even at low concentration ranges

Activated Alumina Filter Cartridge Features:

• Resistant to bacterial degradation (polypropylene type)
• Maximum operating temperature of 180 degree F
• Standard polypropylene material (standard type)
• Non-contaminating
• Inner polypropylene winding rated at 8 microns
• Housing size that fits industry standard

Technical Specifications
Activated Alumina Media Specifications

• Media Type ................................Calcinated alumina tryhydrate
• Grade .......................................12 x 32 mesh
• Surface Area .............................310 sq. m/gm
• Bulk Density, Packed ................. 42 lbs/cu. ft
• Ion Exchange Capacity .............. 225 cmol/kg
• Adsorption Capacity .................. 10 mg fluoride/g media
•         “               “         …………   25 mg arsenic/g media

Above adsorption data is representative for simple solutions. Comparative ion affects or other physical conditions may reduce or enhance ion exchange capabilities of activated alumina.
Removal efficiency depends on temperature, pH, water quality, flow rate, and concentration of suspended solids.

Activated Alumina Cartridge Specifications

• Model ........................................ CPAL-10-PP
• Media Type .............................. Activated alumina
• Outer Shell ................................ Porous, high density polyethylene (nominal 70 microns)
• Core Type ................................. Polypropylene
• End caps .................................... Ethylene propylene, talc filled polypropylene
• Micron Rating ........................... 3
• Outer Diameter ......................... 2 3/4"
• Length ........................................ 10”
• Maximum Temperature ............ 180 degree F

List of Selected Contaminants Removed
by Activated Alumina Media:
Fluoride
Hydrogen Chloride
Hydrogen Sulfide
Arsenic
Alcohol
Ether
Carbonyl Sulfide
Carbon Dioxide