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【答案】应助回帖
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★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 773115293: 金币+20, 翻译EPI+1, ★★★★★最佳答案, 谢谢 2015-11-12 20:13:51
草酸对 Re(VII) 在 蒙脱石中的 有效扩散系数De 和 岩石容量因子影响 不明显。中性条件下(pH=7.0),Re(VII)的 De为9.1 ?? 10-12 m2/s,??为0.05。草酸存在时,Re(VII)的De 为5.3 ??10-12 m2/s,??为0.044。表明了 含有羧基的小分子的 草酸 则一定程度上 阻碍了Re O4-在 蒙脱石中 的扩散。但是 影响不明显。
The effective diffusion coefficient De and rock capacity factor of Re(VII) in montmorillonite are insignificantly affected by oxalic acid. Under neutral condition(pH=7.0),the De value of Re(VII) is 9.1 ?? 10-12 m2/s,??为0.05. However with the presence of oxalic acid, the De value of Re(VII) is 5.3 ??10-12 m2/s,??为0.044, which indicates that the diffusing of Re O4- in montmorillonite is hindered by the oxalic acid of the small molecules with carboxyl in some degree(not so significantly). |
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