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773115293新蟲 (著名寫手)
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[求助]
幫忙翻譯一段英語摘要
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| Through-diffusion and out-diffusion are good way to understand anion diffusion behavior in compacted bentonite. In the present work we investigated Re(VII) and Se(IV) diffusion behavior in 2000 kg/m3 compacted GMZ bentonite. The De values of Re(VII) and Se(IV) are 0.29 ± 0.02 and 0.77 ± 0.05× 10-11 m2/s. The result obtained from out-diffusion method was not agreed with predicted data due to the heterogeneous porosity distribution in clay boundaries and species changed when the diffusion occurred in GMZ bentonite. Comparing the Da values of Se, Tc and I in GMZ and Kunigel-F bentonites, it showed that Kunigel-F bentonite hindered the mobilities of anion more efficiently than GMZ bentonite because of the higher content of montmorillonite. |
金蟲 (著名寫手)
| 貫穿-擴(kuò)散和外擴(kuò)散是了解陰離子在夯實的膨潤土中擴(kuò)散行為的好方法。在本研究中我們調(diào)查了Re (VII)和Se (IV)于2000 kg/m3夯實的GMZ膨潤土中的擴(kuò)散行為。Re (VII)和Se (IV)的De值為0.29?0.02和0.77?0.05?10 -11 m2/秒。通過外擴(kuò)散方法得到的結(jié)果與預(yù)測數(shù)據(jù)不相符是由于在GMZ膨潤土中發(fā)生擴(kuò)散時粘土邊緣和試樣中的非均一孔隙度分配發(fā)生了變化。通過Se、Tc和I于GMZ和Kunigel-F膨潤土中的Da值的比較表明由于較高的蒙脫石含量,Kunigel-F膨潤土比GMZ膨潤土更有效率地阻礙了陰離子的流動性。 |
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