The present invention provides a novel process for the removal and recovery of radionuclides from waste waters and process streams. The process of the present invention utilizes a combination of a supported liquid membrane (SLM) and a strip dispersion to improve extraction of the target species while increasing membrane stability and reducing processing costs. Additionally, the invention provides a family of new extractants, alkyl phenylphosphonic acids, for the removal and recovery of radionuclides and/or metals, including the use of the new extractants in the process. The new extractant selectively removes radionuclides and metals from the feed stream to provide a concentrated strip solution of the target species.
本发明提供了一种从废
水和工艺流中去除和回收放射性核素的新型工艺。本发明的工艺利用支撑液体膜(SLM)和带状分散体的组合来改善目标物质的萃取,同时提高膜的稳定性并降低处理成本。此外,本发明还提供了一系列新型萃取剂--烷基
苯基膦酸,用于去除和回收放射性核素和/或
金属,包括在工艺中使用新型萃取剂。新萃取剂可选择性地从进料流中去除放射性核素和
金属,从而提供目标物质的浓缩带状溶液。