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Our experience with various carbons includes processing of coconut, bituminous, wood and lignite based products; encompassing both virgin and regenerated products.  We specialize in virgin based activated lignite, commonly known as HOK. The low iodine number, unique macro-pore structure has proven to be very well suited for numerous applications. Irrespective of the product, Columbiana Grinding Services will work to meet or exceed your specifications, regardless of your blending or sizing requirements.

Typical uses and industries include, but are not limited to:

  • Municipal Wastewater Treatment Facilities
  • Industrial Effluent Treatment
  • Flue Gas Mercury Adsorption
  • Odor Removal
  • Steel Production Processes

Analytical Reference Values of Activated Lignite HOK®

Water Content

0,5 %

Ash Content

9,0 %

Volatile Compounds - mainly CO & CO2

3,0 %

Fixed Carbon

87,5 %

Sulfur Content - total

0,5 %

Heating Value

29,9 MJ/kg

Specific Surface Area

300 m²/g

Activated Carbon

Activaed Lignite

Fine processed activated lignite

Super fine processed activated carbon