6
1 A Comprehensive Approach to Heavy Metal Removal by Adsorption …
Table 1.2
(continued)
Temp. (°C) Equilibrium time (h) Initial concentration
range (mg/l)
pH
Material
Heavy metal Mass of adsorbent (g) Q
e (mg/g) References
60
4
25–1000
4.5–8.5
Bagasse pith-based
sulphurised
Cobalt
0.1
192.31
[43]
10–40
2
10–100
5
Tunisian date stones Copper
0.5
31.25
[44]
25
1
50–200
6.7
Pinecone
Lead
0.1
27.53
[45]
30
± 1
1
20–200
8
Phaseolus aureus
hulls
Cadmium
0.5
15.7
[46]
25
48
NM
6
Apricot stone
Lead
0.1
22.85
[47]
30
3
10–400
6
Tannin-immobilized
hydrotalcite
Copper
0.1
81.47
[48]
18
1
5–200
6.7
Hazelnut husks
Copper
0.3
6.645
[49]
18
1
5–200
6.7
Hazelnut husks
Lead
0.3
13.05
[49]
60
0.5
25–250
5
Dehydrated wheat
bran
Copper
0.1
51.50
[50]
20
± 1
NM
10–70
5
Waste parthenium
Nickel
0.25
54.35
[51]
23
± 1
NM
50
10
Coal
Lead
0.5
54.945
[52]
25
12
1–1000
4.5
Bagasse carbon
Cadmium
0.15
38.03
[53]
25
12
1–1000
4.5
Bagasse carbon
Zinc
0.15
31.11
[53]
Note: NM
means not mentioned