Effects of Ionic strength, Inorganic Ions and Humic acids on U (VI) removal by HAP modified Quartz Sand
Removal of U (Ⅵ) from aqueous solution by quartz sand loaded hydroxyapatite prepared by sol-gel method, discussed the effects of ionic strength, inorganic ions and humic acid and other hydrochemical parameters on the removal efficiency, using VISUAL MINTEQA to calculate the removal Mechanism of U (Ⅵ) occurrence Morphology. Analysis showed that the element ratio of P to Ca in EDS indicates that the composites are successfully prepared. The effect of ion strength shows that U (Ⅵ) is adsorbed to form an outer surface complex, the adsorption capacity decreased by 0.876mg ·L-1 (7.97%) at 20mM.Inorganic coexisting ions also have some effects, and the order of influence is Ca2+>CO32->Na+. Humic acid can obviously promote the removal of U (Ⅵ) by composites, but also reduce the inhibitory effect of Ca2+ and CO32 on adsorption.
groundwater pollution PRB humic acid aranium (U) compound material
Yang Tianzi Zhang Weimin
East China University of Technology, Water Resources and Environment Institute, Jiangxi, Nanchang
国际会议
呼和浩特
英文
830-836
2019-07-27（万方平台首次上网日期，不代表论文的发表时间）