Annexe 4 : isothermes d’adsorption
89
K L (L/mg)
Q m (mg/g)
Langmuir type 4
Pb
2+
20°C
0,943
7,772
31,791
0,113
93,982
30°C
0,939
7,405
25,864
0,101
93,673
40°C
0,894
9,633
29,031
0,068
99,750
Cd
2+
20°C
0,487
11,993
59,877
0,004
140,000
30°C
0,297
14,860
85,235
0,003
156,548
40°C
0,059
17,310
120,387
0,001
382,000
Zn
2+
20°C
0,113
41,633
202,304
-0,002
-267,500
30°C
0,146
41,415
186,328
-0,002
-249,500
40°C
0,272
54,584
301,251
-0,003
-135,667
K T (L/mg)
Q m (mg/g)
Temkin
Pb
2+
20°C
0,991
5,794
13,966
1,351
18,500
30°C
0,988
6,663
17,023
1,122
19,270
40°C
0,975
16,617
59,021
0,750
20,700
Cd
2+
20°C
0,967
20,224
39,731
0,063
21,690
30°C
0,936
18,338
57,178
0,056
22,280
40°C
0,974
13,014
28,664
0,044
25,220
Zn
2+
20°C
0,973
12,257
36,793
0,062
33,950
30°C
0,983
23,360
46,556
0,056
36,960
40°C
0,983
27,123
50,624
0,048
39,140