Column Study for Adsorption of Copper and Cadmium Using Activated Carbon Derived from Sewage Sludge

Table 3

Column performance in cadmium removal at different bed depths.

Z (cm)	Flow rate (mL/min)	IMC mg/L	Breakthrough time (min)	Exhausting time (min)	M total (g)	Removal %	qe (mg/g)
3	2	100	5	450	90	71.41	28.6
6	2	100	10	540	108	70.93	11.75
9	2	100	30	840	168	64.2	11.02