|
|||||
|
|
Zeolite (Na) modified by nano-Fe particles adsorbing phosphate in rainwater runoff |
|
| Authors: | Lili Gan Jiane Zuo Bangmi Xie Peng Li and Xia Huang |
| Institution: | State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China |
| Abstract: | Zeolite (Na) modified by self-synthesized nano-Fe particles was used as infiltration media to adsorb phosphate in rainwater runoff. The adsorption capacities increased up to 75 times that of natural zeolite at a saturated equilibrium phosphate concentration of 0.42 mg/L. The correlation of capacity and material-specific surface area indicated that specific surface area was not the key factor contributing to the capacity improvement. SEM and XRD analysis showed that chemical reaction between Fe and P to form new products like cacoxenite is the main reason for the increased capacity, and that the method of adding metal ions or particles to improve the adsorption capacity for phosphate is feasible. |
| Keywords: | rainwater runoff phosphate adsorption nano-iron modification |
| 本文献已被 ScienceDirect 等数据库收录！ | |
| 点击此处可从《环境科学学报(英文版)》浏览原始摘要信息 | |
| 点击此处可从《环境科学学报(英文版)》下载免费的PDF全文 | |