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表2 不同酸度体系下的铅/镉/钠Kd值
Tab. 1 Kd value of Na and Pb andCd in differernt acidity system
元素 Elements | 加入量 Addition (μg) | 溶液pH值 pH of solution | 吸附平衡后 After adsorption equilibrium ( μg) | Kd | |
溶液中 solution | 树脂上 resin | ||||
Pb | 1000 | 1 | 1000 | 0 | ＜3 |
2 | 869 | 131 | 15 | ||
3 | 189 | 811 | 429 | ||
4 | 0.1 | 999.9 | ＞104 | ||
5 | 0 | 1000 | ＞104 | ||
6 | 0 | 1000 | ＞104 | ||
7 | 0 | 1000 | ＞104 | ||
8 | 0 | 1000 | ＞104 | ||
Cd | 1000 | 1 | 994 | 6 | ＜3 |
2 | 979 | 21 | 24 | ||
3 | 803 | 197 | 6.7×103 | ||
4 | 15 | 985 | ＞104 | ||
5 | 5.2 | 994.8 | ＞104 | ||
6 | 3.7 | 996.3 | ＞104 | ||
7 | 2.2 | 997.8 | ＞104 | ||
8 | 0.7 | 999.3 | ＞104 | ||
Na | 1000 | 1 | 999 | 1 | ＜3 |
2 | 999 | 1 | ＜3 | ||
3 | 999 | 1 | ＜3 | ||
4 | 999 | 1 | ＜3 | ||
5 | 999 | 1 | ＜3 | ||
6 | 999 | 1 | ＜3 | ||
7 | 999 | 1 | ＜3 | ||
8 | 999 | 1 | ＜3 | ||
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