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HEAVY METAL IONS REMOVAL FROM MODEL WASTEWATERS USING ORAŞUL NOU
Efficiency, (%)
100
90
80
70
60
50
40
30
20
10
0
0 15 30 45 60 75
Time, (min)
125 mg/L 250 mg/L 525 mg/L
Figure 4. Influence of the initial zinc concentration over the removal efficiency evolution
in time, during zinc removal process on 2 grams of Oraşul Nou bentonite sample in
dynamic regime (3D shaker).
525 mg/L
250 mg/L
125 mg/L
1.3003
Figure 6. Influence of the bentonite quantity over the removal efficiency evolution in
time, during zinc removal process on Oraşul Nou bentonite sample in dynamic regime
(3D shaker), Ci = 125 mg Zn
133
2+ /g.
2.1141
0 0.5 1 1.5 2
q, (mg/g)
2.5 3 3.5 4
Figure 5. Influence of the initial zinc concentration over the adsorption capacity, in zinc
removal process on 2 grams of Oraşul Nou bentonite sample in dynamic regime
(3D shaker).
Efficiency, (%)
100
90
80
70
60
50
40
30
20
10
0
0 15 30 45 60 75
Time, (min)
1g 2g 3g
3.8171