- Model 816-M - Gold Recovery Granular Activated Carbon



FILTRASORB 816-M is a granular activated carbon (GAC) developed by Calgon Carbon Corporation for the removal of contaminants from municipal drinking water. These contaminants include taste and odor compounds such as MIB and Geosmin, organic compounds known to be precursors to disinfection byproduct (DBP) formation, DBP compounds such as haloacetic acids and trihalomethanes, contaminants of emerging concern (CECs), such as endocrine disrupting compounds (EDCs) and pharmaceutical and personal care products (PPCPs), and other targeted organic contaminants.

This activated carbon is manufactured from select grades of bituminous coal through a process known as reagglomeration to produce a durable granular product capable of withstanding the abrasion associated with repeated backwashing, air scouring, hydraulic transport, and thermal reactivation. Activation is carefully controlled as measured by the iodine number for effective adsorption of a broad range of high and low molecular weight organic contaminants. The higher density of FILTRASORB brand GAC results in a product with both a greater adsorptive capacity on a volume basis and a longer life through multiple reactivation cycles.

FILTRASORB 816-M is designed to comply with all the applicable provisions of the AWWA Standard for Granular Activated Carbon, B604, latest edition, the stringent extractable requirements of ANSI/NSF Standard 61, and the Food Chemicals Codex, latest edition.

  • Calgon Carbon's reagglomerated coal-based granular activated carbons have several properties which provide superior performance in a wide range of applications.
  • Produced from a pulverized blend of high quality bituminous coals resulting in a consistent, high quality product.
  • The activated carbon granules are uniformly activated through the whole granule, not just the outside. This results in excellent adsorption properties and constant adsorption kinetics in a wide range of applications.
  • The reagglomerated structure ensures proper wetting while also eliminating floating material.
  • High mechanical strength relative to other raw materials, thereby reducing the generation of fines during backwashing and hydraulic transport.
  • Carbon bed segregation is retained after repeated backwashing, ensuring the adsorption profile remains unchanged and therefore maximizing the bed life.
  • Reagglomerated with a high abrasion resistance provides excellent reactivation performance.
  • High density carbon resulting in a greater adsorption capacity per unit volume.

  • Iodine Number : 900 mg/g (min)
  • Moisture by Weight : 2% (max)
  • Effective Size : 1.3-1.5 mm
  • Uniformity Coefficient : 1.4 (max)
  • Abrasion Number : 75 (min)
  • Trace Capacity Number : 9 mg/cc (min)
  • Screen Size by Weight, US Sieve Series :
  • On 8 mesh : 15% (max)
  • Through 16 mesh : 5% (max)

Typical Properties

  • Apparent Density : 0.50 g/cc (min)
  • Water Extractables : <1%
  • Non-Wettable : <1%

Municipal drinking water utilities can extend the life of their FILTRASORB granular activated carbon while lowering their operating costs through participation in Calgon Carbon's Custom Municipal Reactivation (CMR) program.
After a granular activated carbon's adsorptive capacity has been exhausted, it can be returned to Calgon Carbon for thermal reactivation (upon carbon acceptance approval). In the reactivation process, the spent activated carbon is heated to a high temperature in furnaces devoid of oxygen, using steam as a selective oxidant. The high temperature reaction with steam serves to restore the adsorptive capacity of the activated carbon.

The CMR program ensures that each customer receives their own GAC back after reactivation. The benefits of using a custom reactivated GAC versus a virgin carbon are several, including: a) economic, as reactivated GAC costs less than virgin GAC, and b) environmental, as use of reactivated GAC conserves natural resources and reduces CO2 emissions compared to the manufacture of virgin GAC. Another benefit of reactivating and reusing spent granular activated carbon is the ability for customers to ensure for themselves a reliable supply of GAC when needed, as the spent/reactivated carbon represents a renewable resource. Finally, through reactivation, the costs and long-term liability associated with disposal of spent GAC are eliminated.

The combination of high mechanical strength and the dense granular structure of FILTRASORB brand GAC. a product of both the bituminous coal starting material and the reagglomeration manufacturing process, results in a GAC ideal for reactivation, with excellent adsorptive performance and low losses.

FILTRASORB 816-M is used primarily to treat surface water sources for the production of drinking water. This carbon is a coarser mesh media and is generally used in deep bed filters where pressure drop may be a concern. FILTRASORB 816-M functions as a dual purpose media providing both filtration and adsorption.

Design Considerations
As a replacement for existing filter media, the conversion to FILTRASORB 816-M activated carbon imposes no major changes to a plant's normal filtration operations. If more contact time is required, the height of the backwash troughs can be increased. Calgon Carbon Corporation can also provide complete modular adsorption systems as an add-on treatment stage if required.

55 lb. (25 kg) poly bag
1,0001b. (454 kg) super sack
Bulk truck

Safety Message
Wet activated carbon preferentially removes oxygen from air. In closed or partially closed containers and vessels, oxygen depletion may reach hazardous levels. If workers are to enter a vessel containing carbon, appropriate sampling and work procedures for potentially low oxygen spaces should be followed including all applicable federal and state requirements. Please refer to the MSDS for all up to date product safety information.

Filtrasorb is 100% freshly manufactured virgin granular activated carbon. Recycled granular activated carbon is not used in the production of Filtrasorb.

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