It is proposed to add activated carbon to treat a storm stream with a pollutant concentration of

3.1 mg/L. If the treatment plant has only 26 kg of activated carbon, how many liters of waste

stream can be treated to achieve an equilibrium effluent concentration of 1.2 mg/L? Lab tests

show that Freundlich isotherm coefficients for the activated carbon and the pollutant are K, =

0.02 L/kg and n = 2.4 for concentrations in g/L.