Mechanisms of Phosphate Removal by Synthesized Calcite

摘要：

　　Calcite was synthesized through different drying processes and characterized by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM).By bath experiments,the mechanisms of phosphate removal by synthesized calcite were investigated.It appears that synthesis calcite has a strong capacity to remove phosphate from solution.The adsorption of phosphate mainly depends on total concentration of phosphate and pH in solution.Magnesium favors the phosphate adsorption during pH range of 8-13.5;while inhibits the adsorption at around pH 7.The experimental results suggest that the synthesized calcite with aged process can be used effectively as an adsorbent to remove phosphate from an alkaline aqueous solution.

关键词： Adsorption Precipitation Synthesized Calcite Magnesium

作者: Nan Xu Hongwei Yin Zhigang Chen Ming Chen Shouqing Liu

作者单位: Jiangsu Key Laboratory of Environmental Functional Materials,College of Chemistry and Bioengineering,Suzhou University of Science and Technology, Suzhou 215009

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 597-602

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）