无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2013, Vol. 45 ›› Issue (11): 41-.

• 论文 • 上一篇    下一篇

硅酸钙处理富营养化湖水中总磷的实验研究

张连科1,杨冬梅1, 韩剑宏1,曲堂超2   

  1. 1.内蒙古科技大学能源与环境学院,内蒙古包头014010;2. 包钢稀土(集团)高科技股份有限公司
  • 出版日期:2013-11-10 发布日期:2013-11-15

Study on removal of total phosphorus from eutrophic lake water by calcium silicate

Zhang Lianke1,Yang Dongmei1,Han Jianhong1,Qu Tangchao2   

  1. 1.School of Energy and Environment,Inner Mongolia University of Science and Technology,Baotou
     014010,China;2.Baogong Rare-earth(Group) High-technology Co.,Ltd.
  • Online:2013-11-10 Published:2013-11-15

摘要: 为了研究硅酸钙对富营养化湖水中总磷的吸附性能,分别在夏季和冬季进行了一系列实验研究。经测定,水样中总磷的质量浓度在夏季、冬季分别为0.19 mg/L和0.10 mg/L,实验结果表明:采用硅酸钙处理富营养化湖水,每100 mL水样中投加硅酸钙0.8 g,在pH=6、振荡时间为60 min的条件下,硅酸钙对富营养化湖水中总磷的去除率在夏季、冬季分别可达到89.26%和76.54%;其吸附等温线符合Langmuir和Freundlich吸附等温式,最大吸附量为5.32 mg/g。

关键词: 硅酸钙, 富营养化, 吸附, 总磷

Abstract: In order to investigate the absorption performance of calcium silicate to total phosphorus in the eutrophic lake water,a series of experiments were carried out in summer and winter respectively.The mass concentrations of total phosphorus in water samples were 0.19 mg/L and 0.10 mg/L in summer and winter respectively.The results of experiments showed that the removal rates of total phosphorus in summer and winter could reach 89.26% and 76.54% respectively when pH was 6, the dosage of calcium silicate was 0.8 g per 100 mL water sample,and the oscillating time was 60 min.The absorption isotherm fitted to Langmuir and Freundlich isotherm formulas,with the maximum absorption capacity of 5.32 mg/g. 

Key words: calcium silicate, eutrophic, absorption, total phosphorus

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