Study on removal of Microcystis aeruginosa and Cr (VI) using attapulgite-Fe3O4 magnetic composite material (MCM)
Study on removal of Microcystis aeruginosa and Cr (VI) using attapulgite-Fe3O4 magnetic composite material (MCM)
复制标题
凹凸棒石-Fe3O4磁性复合材料(MCM)去除铜绿微囊藻和Cr(VI)的研究
DOI：
10.1016/j.algal.2021.102501
复制
发表时间：
2021-12
期刊：
影响因子：
--
通讯作者：
Qing Huang
中科院分区：
文献类型：
--
作者：
Longfei Chen;Xiran Wu;Chao Liu;Yunmeng Zhao;Qing Huang
为了去除废水中的铜绿微囊藻和六价铬，用盐酸对凹凸棒石进行改性，并与三氧化二铁(Fe3O4)混合制成磁性复合材料(MCM)，用于絮凝MCM。铜绿假单胞菌对六价铬有很好的吸附作用，在外加磁场的作用下，可以很容易地从水中析出。实验结果表明，MCM对它们有明显的沉淀作用。铜绿假单胞菌在10min内的脱色率可达96%以上，同时在5min内可有效地吸附铬(VI)，脱色率可达95%。MCM对Cr(VI)的吸附符合准二级动力学模型，吸附等温线符合Langmuir方程。随着温度的升高，铬(VI)的吸附量减少，说明铬(VI)的吸附是放热过程。这项工作为含M废水的处理提供了一条新的途径。铜绿素和铬(VI)，并阐明了应用材料的吸附性能。
In order to removeMicrocystisaeruginosa(M. aeruginosa) and hexavalent chromium Cr (VI) from wastewater, attapulgite was modified with hydrochloric acid and mixed with ferroferric oxide (Fe3O4) to prepare magnetic composite material (MCM), which could be utilized to flocculateM. aeruginosaand adsorb Cr (VI) effectively, and could be taken out from water easily under external magnetic field. The experimental results showed that the MCM could precipitate theM. aeruginosawith the removal rate over 96% within 10 min, and in the meantime, it could efficiently adsorb Cr (VI) with the removal rate of Cr (VI) reaching 95% within 5 min. The adsorption of Cr (VI) by MCM conforms to the pseudo-second-order kinetic model, and the isotherm model for the adsorption of Cr (VI) conforms to the Langmuir equation. The adsorption amount of Cr (VI) decreased with the increase of temperature, indicating that the adsorption process of Cr (VI) was exothermic. This work therefore proposes a new approach for treatment of wastewater containingM. aeruginosaand Cr (VI), and also elucidates the adsorption properties of the applied material.
登录
查看更多内容
影响因子：
1.5
作者：
P. Coetzee;L. Coetzee;R. Puka;S. Mubenga
通讯作者：
P. Coetzee;L. Coetzee;R. Puka;S. Mubenga
影响因子：
5.6
作者：
BARRIOS, MS;GONZALEZ, LVF;POZAS, JMM
通讯作者：
POZAS, JMM
影响因子：
3.8
作者：
Hongqiang Wang;Tian-Guang Mao;B. Xi;Lie-yu Zhang;Qiaohong Zhou
通讯作者：
Hongqiang Wang;Tian-Guang Mao;B. Xi;Lie-yu Zhang;Qiaohong Zhou
影响因子：
4.6
作者：
S. Asuha;B. Suyala;S. Zhao
通讯作者：
S. Asuha;B. Suyala;S. Zhao
影响因子：
8.9
作者：
Zhicong Wang;D. Li;Hongjie Qin;Yinxia Li
通讯作者：
Zhicong Wang;D. Li;Hongjie Qin;Yinxia Li