کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4546619 1627050 2014 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Colloid-borne forms of tetravalent actinides: A brief review
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Colloid-borne forms of tetravalent actinides: A brief review
چکیده انگلیسی


• Mobilization of tetravalent actinides in colloid-borne form cannot be ruled out.
• Compilation of colloid-borne forms of tetravalent actinides described so far
• Colloids with structural actinide(IV) and colloids with adsorbed actinide(IV)
• Comparison with actinide(IV) colloids observed in real-world scenarios

Tetravalent actinides, An(IV), are usually assumed to be little mobile in near-neutral environmental waters because of their low solubility. However, there are certain geochemical scenarios during which mobilization of An(IV) in a colloid-borne (waterborne) form cannot be ruled out. A compilation of colloid-borne forms of tetravalent actinides described so far for laboratory experiments together with several examples of An(IV) colloids observed in field experiments and real-world scenarios are given. They are intended to be a knowledge base and a tool for those who have to interpret actinide behavior under environmental conditions. Synthetic colloids containing structural An(IV) and synthetic colloids carrying adsorbed An(IV) are considered. Their behavior is compared with the behavior of An(IV) colloids observed after the intentional or unintentional release of actinides into the environment. A list of knowledge gaps as to the behavior of An(IV) colloids is provided and items which need further research are highlighted.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Contaminant Hydrology - Volume 157, February 2014, Pages 87–105
نویسندگان
, ,