Experimental Study on Preparation and Pb2+Adsorption Capability of Ferric Salt Modified Sands
Ferric salt modified sands were prepared with quartz sand as a carrier and ferric salt coating by the two methods of repeat high-temperature process and repeat alkaline deposition process. The specific surface area of two ferric salt modified sands were detected, and their Pb2+ adsorption capability in different conditions were also described in this paper. The results showed that the specific surface area of ferric chloride and ferric nitrate modified sand was 2.468m2/g and 4.247m2/g respectively, which was 6.910 and 12.612 times more than that of raw quartz sand. In the neutral pH condition, the removal efficiency of Pb2+ by raw quartz sands was approximately 37％, in contrast, the removal efficiency reached 85％ by ferric nitrate modified sand and over 90％ by ferric chloride modified sand, and it was much higher than that of raw quartz sand.
ferric salt modified sands preparation Pb2+ removal adsorption capability
Chunsheng Ding Xiaoyan Ma Yinglong Zou Ping Ning
Faculty of Environment Science and Engineering, Kunming University of Science and Technology,Kunming College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou,310014, C Faculty of Environment Science and Engineering, Kunming University of Science and Technology,Kunming
国际会议
合肥
英文
852-855
2011-09-23（万方平台首次上网日期，不代表论文的发表时间）