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773115293

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²ÝËá¶ÔRe(VII)ÔÚÃÉÍÑʯÖеÄÓÐЧÀ©É¢ÏµÊýDeºÍÑÒʯÈÝÁ¿Òò×ÓÓ°Ïì²»Ã÷ÏÔ¡£ÖÐÐÔÌõ¼þÏÂ(pH=7.0)£¬Re(VII)µÄDeΪ9.1  10-12 m2/s£¬Îª0.05¡£²ÝËá´æÔÚʱ£¬Re(VII)µÄDeΪ5.3  10-12 m2/s£¬Îª0.044¡£±íÃ÷Á˺¬ÓÐôÈ»ùµÄС·Ö×ӵIJÝËáÔòÒ»¶¨³Ì¶ÈÉÏ×è°­ÁËReO4-ÔÚÃÉÍÑʯÖеÄÀ©É¢¡£µ«ÊÇÓ°Ïì²»Ã÷ÏÔ¡£

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773115293: ½ð±Ò+20, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл 2015-11-12 20:13:51
²ÝËá¶Ô Re(VII) ÔÚ ÃÉÍÑʯÖÐµÄ ÓÐЧÀ©É¢ÏµÊýDe ºÍ ÑÒʯÈÝÁ¿Òò×ÓÓ°Ïì ²»Ã÷ÏÔ¡£ÖÐÐÔÌõ¼þÏÂ(pH=7.0)£¬Re(VII)µÄ DeΪ9.1 ?? 10-12 m2/s£¬??Ϊ0.05¡£²ÝËá´æÔÚʱ£¬Re(VII)µÄDe Ϊ5.3  ??10-12 m2/s£¬??Ϊ0.044¡£±íÃ÷ÁË º¬ÓÐôÈ»ùµÄС·Ö× ²ÝËá ÔòÒ»¶¨³Ì¶ÈÉÏ ×è°­ÁËRe O4-ÔÚ ÃÉÍÑʯÖÐ µÄÀ©É¢¡£µ«ÊÇ Ó°Ïì²»Ã÷ÏÔ¡£
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£¬??Ϊ0.05. However with the presence of oxalic acid, the De value of Re(VII) is 5.3  ??10-12 m2/s£¬??Ϊ0.044, 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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