红壤胶体对铀(Ⅵ)吸附性能研究.pdf

目录摘要.........................................................................................................I Abstract......................................................................................................II 第1章绪论...........................................................................................1 土壤胶体的来源和分类...............................................................2 渗滤液中铀的存在形态...............................................................3 土壤胶体对铀(Ⅵ)的阻滞作用.....................................................4 土壤胶体吸附铀(Ⅵ)的主要影响因素.........................................5 ..........................................................................................10 .........................................................11 .....................................................................................11 第2章实验部分....................................................................................12 实验材料.....................................................................................12 红壤胶体的提取.........................................................................13 铀吸附实验.................................................................................15 本章小结.....................................................................................18 第3章红壤胶体吸附铀(Ⅵ)的影响因素..............................................19 pH与离子强度对红壤胶体吸附铀(Ⅵ)的影响..........................19 吸附时间对红壤胶体吸附铀(Ⅵ)的影响...................................20 铀(Ⅵ)的初始质量浓度对红壤胶体吸附铀(Ⅵ)的影响............21 吸附剂的投入量对红壤胶体吸附铀(Ⅵ)的影响......................22 胶体粒径对红壤胶体吸附铀(Ⅵ)的影响...................................22 万方数据 有机质对红壤胶体吸附铀(Ⅵ)的影响.......................................23 温度对红壤胶体吸附铀(Ⅵ)的影响...........................................23 本章小结.....................................................................................24 第4章红壤胶体吸附铀(Ⅵ)的热力学、动力学及等温线研究.........25 吸附原理......................................