标题：In research the adsorption characterization of Fe(NO3)3-modified attapulgite in phosphorous removal from aqueous solutions
作者：Zhang, Yan ;Lu, Xianjun ;Lou, Hongchun
作者机构：[Zhang, Yan ;Lu, Xianjun ;Lou, Hongchun ] Shandong University of Science and Technology, China
会议名称：27th International Mineral Processing Congress, IMPC 2014
会议日期：October 20, 2014 - October 24, 2014
来源：IMPC 2014 - 27th International Mineral Processing Congress
摘要：The potential of Fe(NO3)3modified attapulgite was assessed for the adsorption of phosphorous removal from aqueous solutions. Natural attapulgite was modified by Fe(NO3)3, and thus the composite adsorption materials could be obtained. Also phosphorous adsorption characterization on the iron-coated attapulgite was investigated in this research. Taken overall the results suggested that phosphorous adsorption capacity could be improved markedly by adopting ferric modified-attapulgite. The optimum phosphorous adsorption were developed in the experimental conditions of the solid-to-liquid Ratio 1g/L, the initial phosphorous concentration 5 mol·L-1, reaction time 120 min, temperature 25 °C and pH=4.0, the removal efficiency is 92.28% for the modified attapulgite. In comparison of batch experimental results of phosphorous adsorption onto natural and iron-coated attapulgite, it has provided much more likely the same change trend. On the other hand, the outcomes of this analysis indicated that ferric modified adsorbent was notably influenced by adsorption element over natural attapulgite. The Freundlich isotherm adequately described the adsorption course of phosphorous onto ferric modified-attapulgite with the correlation coefficient R2 goodness of fit of 0.9690.