[1]刘学平,张涵博,翟全德,等.商业介孔SiO2对水体中Cd、Hg污染物的净化[J].福建工程学院学报,2018,16(03):219-223.[doi:10.3969/j.issn.1672-4348.2018.03.004]
　LIU Xueping,ZHANG Hanbo,ZHAI Quande,et al.Purification of Cd and Hg as water pollutents using commercial mesoporous SiO2[J].Journal of FuJian University of Technology,2018,16(03):219-223.[doi:10.3969/j.issn.1672-4348.2018.03.004]
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商业介孔SiO2对水体中Cd、Hg污染物的净化()
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《福建工程学院学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第16卷
期数:
2018年03期
页码:
219-223
栏目:
出版日期:
2018-06-25

文章信息/Info

Title:
Purification of Cd and Hg as water pollutents using commercial mesoporous SiO2
作者:
刘学平; 张涵博; 翟全德; 刘敏毅
福建工程学院生态环境与城市建设学院
Author(s):
LIU Xueping;  ZHANG Hanbo;  ZHAI Quande;  LIU Minyi
School of Ecological Environment and Urban Construction, Fujian University of Technology
关键词:
介孔SiO2;  重金属;  吸附;  水污染
Keywords:
mesoporous SiO2;  heavy metals;  adsorption;  water pollution
分类号:
X131.2
DOI:
10.3969/j.issn.1672-4348.2018.03.004
文献标志码:
A
摘要:
针对受Cd、Hg重金属污染的水体，研究了添加商业介孔SiO2（MCM-41）对Cd2+、Hg2+的净化效果及其影响因素。模拟实验表明：适量的MCM-41对Cd2+、Hg2+具有良好的净化效果，特别是对于低Cd2+、Hg2+污染物浓度的水体，净化效率超过90%；而过量的MCM-41颗粒间易发生团聚现象影响吸附效率；降低水体温度、提高pH有利于提高MCM-41对Cd2+、Hg2+污染物的净化效率；吸附过程以物理吸附为主，吸附速率较快，净化体系短时间内即可达到吸附饱和，可作为填料应用于饮用水净化装置。
Abstract:
Commercial mesoporous SiO2 (MCM-41) was used to purify water polluted with such heavy metals as Cd and Hg, and the influencing factors were tested. Simulation results show that, a moderate amount of MCM-41 has good purification effects on Cd2+ and Hg2+. Specifically, the control efficiency was greater than 90% for water with low Cd2+ and Hg2+ concentrations. However, the control efficiency would be reduced using an excess amount of MCM-41, because of the reunion of the particles. The control efficiency could be improved at a reduced temperature or with an increased pH. Physical absorption is the main type of absorption, and the absorption is fast. The purification system could achieve absorption equilibrium in a short time. Therefore, MCM-41 can be used as packing in drinking water purification devices.

参考文献/References:

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更新日期/Last Update: 2018-06-25