Prediction of Heavy Metal Removal by Different Liner Materials from Landfill Leachate: Modeling of Experimental Results Using Artificial Intelligence Technique

Table 2

The whole experimental system.

Liner materials %	Cu(II) removal (%)	Zn(II) removal (%)
Bentonite	45.07	48.19
25% natural zeolite + 75% bentonite	63.27	60.47
50% natural zeolite + 50% bentonite	89.20	80.90
75% natural zeolite + 25% bentonite	98.34	95.29
25% vermiculite + 75% bentonite	47.97	50.31
50% vermiculite + 50% bentonite	52.73	68.98
75% vermiculite + 25% bentonite	77.41	81.49
25% pumice + 75% bentonite	52.38	50.00
50% pumice + 50% bentonite	57.50	67.50
75% pumice + 25% bentonite	78.62	74.24