Table 3 Reproducibility of U(VI) removal by sorption/precipitate flotation.
From: U(VI) removal from diluted aqueous systems by sorption–flotation
No | Floated sample characteristics | Ct, (mg·L−1) | Statistical probability |
|---|---|---|---|
1 | Co = 10 mg·L−1 Vsample = 200 mL pH = 8.75 [U(VI)] : [Fe (III)] : [NaOL] = 1 : 100 : 1 × 10–2 Vsample : Vwater = 3 : 1 p = 4·105 N·m−2 | 0.01 | \(\overline{X }\)= 0.008 S = 2.6667·10–6 \({S}_{\overline{X} }\) = 8.4328·10–6 P = 95% t·\({S}_{\overline{X} }\) = 0.000018 Ct = 0.008 ± 0.000018 P = 99% t·\({S}_{\overline{X} }\)= 0.000032 Ct = 0.008 ± 0.000032 |
2 | 0.009 | ||
3 | 0.008 | ||
4 | 0.005 | ||
5 | 0.007 | ||
6 | 0.008 | ||
7 | 0.006 | ||
8 | 0.01 | ||
9 | 0.009 | ||
10 | 0.008 | ||
11 | Co = 10 mg·L−1 Vsample = 200 mL pH = 8.75 [U(VI)] : [Fe (III)] : [NaOL] = 1 : 75 : 1 × 10–2 Vsample : Vwater = 3 : 1 p = 4·105 N·m−2 | 0.0044 | \(\overline{X }\)= 0.00426 S = 2.593·10–4 \({S}_{\overline{X} }\) = 8.19998·10–5 P = 95% t·\({S}_{\overline{X} }\)= 0.00018285 Ct = 0.00426 ± 0.00018285 P = 99% t·\({S}_{\overline{X} }\)= 0.000259939 Ct = 0.00426 ± 0.000259939 |
12 | 0.0043 | ||
13 | 0.0040 | ||
14 | 0.0044 | ||
15 | 0.0039 | ||
16 | 0.0041 | ||
17 | 0.0045 | ||
18 | 0.0040 | ||
19 | 0.0046 | ||
20 | 0.0044 |
