广西师范大学学报（自然科学版） ›› 2015, Vol. 33 ›› Issue (1): 115-121.doi: 10.16088/j.issn.1001-6600.2015.01.019

• • 上一篇    下一篇

Mg/Al水滑石和Zn/Al水滑石对微囊藻的去除性能研究

秦芳1, 蒋钦凤2, 王婷2, 王玉荣2, 冯吉庆2, 陈金毅2   

  1. 1.武汉工程大学资源与土木工程学院,湖北武汉430073;
    2.武汉工程大学化学与环境工程学院,湖北武汉430073
  • 收稿日期:2014-12-14 出版日期:2015-03-15 发布日期:2018-09-17
  • 通讯作者: 秦芳(1974—),男,湖北武汉人,武汉工程大学副教授。E-mail:jychwit@163.com
  • 基金资助:
    教育部新世纪优秀人才计划资助项目(NCET-12-0713);国家自然科学基金资助项目(51374157);湖北省自然科学基金资助项目(2013CFA106);武汉工程大学研究生教育创新基金资助项目(CX2013108)

Removal Capacity of Microcystis aeruginosaby Mg/Al Hydrotalcite and Zn/Al Hydrotalcite

QIN Fang1, JIANG Qin-feng2, WANG Ting2, WANG Yu-rong2, FENG Ji-qing2, CHEN Jin-yi2   

  1. 1.School of Resources and Civil Engineering, Wuhan Institute of Technology, Wuhan Hubei 430073, China;
    2.School of Chemistry and Environment Engineering, Wuhan Institute of Technology, Wuhan Hubei 430073, China
  • Received:2014-12-14 Online:2015-03-15 Published:2018-09-17

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摘要： 本文研究了直接用表面带正电荷的黏土矿物水滑石进行除藻。通过共沉淀法,制备了不同物质的量之比的Mg/Al水滑石和Zn/Al水滑石,将两种材料进行去除铜绿微囊藻的实验研究。结果表明,金属物质的量之比为3的水滑石除藻效果优于其他条件的水滑石;利用金属物质的量之比为3的Mg/Al水滑石和Zn/Al水滑石对不同浓度铜绿微囊藻进行去除实验,发现Mg/Al水滑石除藻效果优于Zn/Al水滑石,对高浓度和低浓度铜绿微囊藻都具有良好的去除效果。最后,研究了Mg/Al水滑石的水溶性,以及对环境的友好性能,结果发现Mg/Al水滑石水溶性较小,对水体的硬度和铝含量影响不大。

关键词: 水滑石, 铜绿微囊藻, 吸附, 环境友好性

Abstract: At present, most of clay minerals was negatively charged, which need to be modified to improve the ability of remove algae. However, the modified material was not widely used to remove algae because of its high cost and secondary pollution. Algae removal was explored by the clay minerals with positively charged. Mg/Al hydrotalcite(Mg/Al-LDH) and Zn/Al hydrotalcite(Zn/Al-LDH) were synthesized by co-precipitation method and its calcination products (Mg/Al-LDO, Zn/Al-LDO) were prepared by heating Mg/Al-LDH and Zn/Al-LDO at 400 ℃; To know the practical applicability, a detailed removal study of Microcystis aeruginosa was carried out. The influences of different Mg/Al molar ratio, Zn/Al molar ratio, initial Microcystis aeruginosa concentration were investigated, and environmental friendliness of hydrotalcite were discussed. The results indicate that the best molar ratio of nMg∶nAl(nZn∶nAl) was 3∶1, and the removal capacity of Microcystis aeruginosa with Mg/Al-LDO was superior to Zn/Al-LDO. At this initial concentration of Microcystis aeruginosa rang, Mg/Al-LDO had a clear role in the removal of Microcystis aeruginosa. In addition, Mg/Al-LDO would not cause secondary pollution in stead, it has good environmental friendliness.

Key words: hydrotalcite, Microcystis aeruginosa, adsorption, environmental friendliness

中图分类号: 

  • X524
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