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1.发明公开Methods and compositions for the fixation of trace amounts of radiocaesium 审中-公开Methoden und Zusammensetzungen zur Fixierung von RadiocaesiumSpurquantitäten
公开(公告)号：EP1010475A1
公开(公告)日：2000-06-21
申请号：EP98204250.9
申请日：1998-12-15
摘要： The contamination of parts of the food chain such as soils, water supplies and animal fodder with radiocaesium has long been a topic of concern. Methods of fixing radiocaesium are described which include the use of a 2-1 layer phyllosilicate which is at least partly exchanged with potassium, caesium, rubidium or ammonium. The partly exchanged 2-1 layer phyllosilicate may be contacted with soil and then the mixture subjected to a series of wetting and drying cycles. The transfer factor of radiocaesium to growing plants is significantly reduced by the application of the partly exchanged 2-1 layer phyllosilicate to soils independent of whether the soils have a low cation exchange capacity (e.g. podzolic or sandy soils) or include a higher loading of organic material.
. Methods of soil and water supply treatment are described. The compositions and methods of the present invention may provide an unexpectedly high and industrially useful radiocaesium sorption selectivity摘要翻译： 食物链部分的污染物，如土壤，供水和动物饲料与放射性核素一直是一个令人关注的问题。 描述了固定放射性镁的方法，其包括使用与钾，铯，铷或铵至少部分交换的2-1层页硅酸盐。 部分交换的2-1层页硅酸盐可以与土壤接触，然后将混合物进行一系列润湿和干燥循环。 通过将部分交换的2-1层页硅酸盐施用于土壤，无论土壤是否具有低的阳离子交换能力（例如豆荚状或沙质土壤），或者包括较高的有机物含量，对植物生长的植物的转移因子显着降低 材料。 。 描述了土壤和水的供给处理方法。 本发明的组合物和方法可以提供意想不到的高和工业上有用的放射性镁吸附选择性
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