Preparation of Sands Modified by Aluminous Salt and Its Adsorption Capability of CD2+
In this experiment quartz sand was chosen as a carrier to be coated by aluminous salt under alkaline condition, and then the specific surface area was tested, and the adsorption capability and Cd2+ removal influencing factors of modified sand were studied. The investigation results showed that the specific surface area of modified sand was 75.244m2/g which was 9.38 times of that of original sand; the removal efficiency of Cd2+ by aluminous salt modified sand reached 59％ contrast to 39％ of original sand with pH 7.00. It was also found that the removal efficiency of Cd2+ by the aluminous salt modified sand was reduced with the increase of initial concentration of Cd2+ solution, and was enhanced with the increase of pH value, the Cd2+ removal efficiency was almost 71％ with pH 9.0.
sands modified by aluminous salt preparation removal of Cd2+ adsorption capability
Chunsheng Ding Yangping Fu Qianfen Zhu Jing Fu
College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou, Zhejiang, 310014, China
国际会议
合肥
英文
856-859
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）