| 利用矿物方解石进行水体除磷实验研究 |
| |
| 引用本文： | 许虹,张静,高一鸣.利用矿物方解石进行水体除磷实验研究[J].地学前缘,2008,15(4):138-141. |
| |
| 作者姓名： | 许虹 张静 高一鸣 |
| |
| 作者单位： | 1. 中国地质大学(北京)地球科学与资源学院,北京,100083
2. 中国石油天然气总公司石油勘探开发研究院,北京,100083 |
| |
| 基金项目： | 国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | 为探索解决水体富营养化问题的新方法,利用矿物方解石对含磷溶液进行了除磷实验。实验结果表明,方解石晶芽可以促进磷的沉淀,降低溶液磷浓度;其降磷效果与溶液初始磷浓度有关,初始磷浓度为1.2mg/L,除磷率为12.68%,初始磷浓度为3mg/L,除磷率为69.94%,初始磷浓度为5mg/L,除磷率为88.48%;同样,实验温度升高,可使方解石降磷效果明显提高。经透射电子显微镜测试,除磷沉淀物没有明显的晶质体特征。
|
| 关 键 词： | 富营养化 矿物 方解石 磷浓度 除磷 |
Experimental studies on removal of phosphor in eutrophic water bodies by utilization of mineral calcite |
| |
| Xu Hong,Zhang Jing,Gao Yiming.Experimental studies on removal of phosphor in eutrophic water bodies by utilization of mineral calcite[J].Earth Science Frontiers,2008,15(4):138-141. |
| |
| Authors: | Xu Hong Zhang Jing Gao Yiming |
| |
| Abstract: | For seeking a new method to solve the problem of eutrophication, we have made the experiments of removing phosphor in eutropic water by use of mineral calcite. The results indicate that the mineral calcite can remove phosphor from the solution, and that the initial phosphorus concentration may influence the efficiency of phosphor removal. The dephosphorization rate is high when the initial phosphor concentration is 5 mg/L, and phosphor can be removed by 88.48%; the dephosphorization rate may reach 69.94% when the initial phosphorus concentration is 3 mg/L; at 1.2 mg/L initial concentration only 12.68% phosphor can be removed. Increasing temperature can also raise the efficiency of phosphor removal. The result of TEM shows that the Ca-P precipitation is not in crystalline state. |
| |
| Keywords: | eutrophication mineral calcite P concentration P removal |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
