Coconut Shell Granular Activated Carbon

Coconut Shell Granular Activated Carbon — drinking water and point-of-use purification with low fines and long service life. Sanniu Carbon supplies this grade as a granular form, produced on our own activation lines and tested batch by batch.

Typical duty: drinking water, point-of-use cartridges, beverage processing, solvent recovery. Screened granules for fixed beds and continuous columns, with the hardness to survive backwashing.

The coconut shell series is characterised by a predominantly microporous structure matched to small molecules, with high hardness. Reference values for the series range from 900-1600 mg/g iodine value, 950-1200 m2/g BET surface area, 40% or higher CTC adsorption and 5% or lower ash, produced by physical activation. The agreed specification for your order is confirmed per batch.

Send the medium to be treated, the flow rate or concentration, the target specification and the required particle size. We confirm the grade and the agreed specification plan before quotation, and a 1-5 kg sample is available for evaluation.

Granular carbon suits fixed beds and continuous columns: the mesh range sets both the pressure drop and the contact time, so specify the range your vessel is designed for. Backwashing is normally tolerated because of the hardness of the material. Watch for a rising outlet concentration, a colour or odour change, or an increasing pressure drop. Any of these indicates the bed is loading up; arrange a test or a replacement before the outlet goes out of specification. Thermal regeneration and acid washing are the usual recovery routes.

Values in the specification table follow the series reference ranges and are confirmed per batch. Iodine value and methylene blue adsorption are reported in mg/g, CTC adsorption, hardness and ash content in %, bulk density in g/cm3 and particle size in mesh. Test reports name the sample tested and the method used.