Removal of Humic Substances from Water with Granular Activated Carbons

Abstract

The article deals with the removal of humic substances from surface water in the High Tatras locality and with the reduction in the intensity of water coloration. Four different types of granular activated carbon (Norit 1240, WG12, Filtrasorb TL830, and Filtrasorb 300) were compared in the experiments. The quality of the water from the water source supplied to the filter columns, and the water at the outlet, the filtration speed, and the efficiency of sorption media were monitored. The results showed more than 70% efficiency in the removal of humic substances and CODMn from water, but only about 50% efficiency from the point of view of water color, as determined with the technology used.

Keywords

• drinking water treatment
• filtration
• granulated activated carbon
• humic substances
• color of water
• adsorption efficiency