Activated carbon is used in a process to reduce the toluene concentration in water from 50 g/L to 5 g/L. The removal of toluene follows the Freundlich isotherm with the following parameters:

Kf=0,73(/g)(/mg)^(1/) ; (1/n)=0,9

How much activated carbon do you need to add to treat 0.1 m3 of effluent?