Measuring and modeling cobalt and uranium binding by humic acid

摘要：

The aim of this study was to model the binding of uranyl (UO<,2><2+>) and cobalt (Co2+) ions to humic acid (HA) from the Gorleben test site in Germany. The experimental data were acquired using a recently developped Flux Donnan Membrane technique. Total cobalt concentrations ranged from 10<-8> to 10<-4> M at pH 4, 6, 8 and total uranyl ion concentrations from 10<-8> to 10<-4> M at pH 4. The NICA-Donnan model was used to predict the speciation of the radionuclides and their competition with alkaline earth ions such as magnesium, which can modify the speciation through competition.

关键词： Flux Donnan Membrane cobalt uranium humic substances

作者: L. Marang P. Reiller M. F. Benedetti

作者单位: CEA Saclay, Nuclear Energy Division, DPC/SECR/LSRM, 91191 Gif sur Yvette, France Laboratoire de Gech CEA Saclay, Nuclear Energy Division, DPC/SECR/LSRM, 91191 Gif sur Yvette, France Laboratoire de Gechimie des Eaux, Universite Paris 7, LPGP, 75251 Paris Cedex 05, France

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 423-424

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）