Study on the Efficient Adsorbent for Phosphorus Removal in Environmental Waters

摘要：

In this study the efficiencies of phosphate removal by static absorption of three naturally derived materials attapulgite, vermiculite and dolomite were tested. Experiments were also conducted to study the modification, the absorption capacities of phosphate removal by modified adsorbent. The results shows that naturally derived materials have little capability for phosphate removal. After calcinations-modification, these minerals can increase capability of phosphate removal largely. The optimal conditions of calcination-modification were determined to be 2 h at 700 , 2 h at 500  and 2 h at 700  for vermiculite, attapulgite and dolomite respectively. Under such conditions, the phosphorus removal rate of the three materials reached 93%, 74.6% and 97.8% with the dosage of 5 g/L. Excellent performance could be expected especially in low P-containing water.

关键词： vermiculite attapulgite dolomite phosphate removal environmental water

作者: NIAN Yuegang XUE Mei YAN Haihong SONG Yingwei YIN Qin SUN Peng

作者单位: Research Center for Water Pollution Control,Chinese Research Academy of Environmental Sciences,Beiji University of Science and Technology Beijing,Beijing 100083,China Beijing Municipal Research Institute of Environmental Protection,Beijing 100037,China Department of

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 104-108

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）