Biosorption of Uranium and Rare Earth Elements Using Biomass of Algae
Table 1
The concentrations (ng g-1) of lanthanide and U in brown algae taken on the coast of Niigata prefecture.
Concentration/ng g-1*
Dictyota dichotoma
Ecklonia stolonifera
Sargassum hemiphyllum
Sargassum honeri
Undaria pinnatifida
La
(1.1–1.3) × 102
1.0 × 102
(1.9–2.5) × 102
(1.4–3.0) × 102
(0.93–1.3) × 102
35–38
20
38–53
33–66
30–48
Ce
(2.4–2.6) × 102
4.4 × 102
(3.3–4.0) × 102
(3.1–4.4) × 102
(1.9–2.8) × 102
74–79
92
71–1.0 × 102
77–95
67–1.0 × 102
Pr
38–40
26
(1.9–4.4) × 102
37–60
(2.1–3.3) × 102
12-13
5.4
4.9–9.7
9.3–13
5.3–11
Nd
(2.1–2.4) × 102
1.3 × 102
(1.9–2.2) × 102
(15–23) × 102
92–1.5 × 10-2
68–70
27
40–51
34–49
23–44
Sm
85–99
80
40–53
36–52
14–34
28-29
16
10–13
8.2–12
3.6–12
Eu
41–49
3.1 × 102
12–15
12–22
5.0–11
13-14
64
2.7–3.9
2.6–4.8
1.9–3.9
Gd
(1.8-1.9) × 102
1.5 × 102
49–58
37–70
16–39
55–62
31
10–15
8.0–15
3.8–12
Tb
30–36
1.1 × 102
7.1–10
6.1–10
2.4–8.7
9.7–10
23
1.4–2.4
1.3–2.2
6.0 × 10-1–3.1
Dy
(2.3–2.8) × 102
1.4 × 102
50–66
34–69
9.6–29
77–80
28
11–16
9.4–15
3.4–9.9
Ho
53-54
1.2 × 102
8.5–12
8.9–16
3.5–8.4
16-17
24
1.9–3.2
2.0–3.5
9.0 × 10-1–2.8
Er
(1.5–1.8) × 102
1.3 × 102
31–40
13–22
13–24
50–53
28
7.8–9.2
2.9–4.8
3.8–7.4
Tm
22–27
1.2 × 102
2.8–3.6
3.0–7.8
9.5 × 10-1–2.8
7.2–7.8
25
(5.9–9.1) × 10-1
6.5 × 10-1–1.6
(2.4–9.8) × 10-1
Yb
(1.4–1.8) × 102
1.4 × 102
30–32
24–29
12–24
48–53
30
6.2–7.9
6.1–7.3
3.8–8.5
Lu
21–28
1.4 × 102
4.4–6.1
2.8–7.2
2.7–6.3
7.0–9.0
28
9.0 × 10-1–1.6
7.1 × 10-1–1.5
7.6 × 10-1–2.3
U
(1.4–1.7) × 103
1.3 × 103
(1.4–1.8) × 103
(1.0–1.5) × 103
(1.8–2.5) × 103
(4.6–5.0) × 102
2.7 × 102
(2.9–4.8) × 102
(2.4–4.2) × 102
(4.9–8.2) × 102
*The concentrations of elements are
expressed on the basis of both ash weight (the upper line) and dry weight
(the lower line) of each brown algae species.
