Study of Montmorillonite Clay for the Removal of Copper (II) by Adsorption: Full Factorial Design Approach and Cascade Forward Neural Network

Table 2

Experimental range and levels of independent variables.

Factors	Range and levels (actual)
	Low	High
	3	6
	5	25
	10	30
	0	1

For , 0 represents raw and 1 represents modified montmorillonite.