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Effective Removal of Mercury Ions in Aqueous Solutions: A Review

[ Vol. 16 , Issue. 3 ]

Author(s):

Kang Hua, Xueliu Xu, Zhiping Luo, Dong Fang*, Rui Bao* and Jianhong Yi*   Pages 363 - 375 ( 13 )

Abstract:


Background: Due to its high toxicity and bioaccumulation, the existence of mercury in the environment is always a big threat to human beings. In order to control mercury pollution, scientists have put great efforts in the past decades.

Methods: Precipitation, adsorption, membrane separation, biological treatment and ion exchange are reviewed as a remover for mercury removal. For each material type, we not only reported on the removal mechanism, but also discussed the best areas for it. The correlation method and step-to-step focusing method have been used for references.

Results: For better mercury removal, the ways above are compared together. The mechanisms of removing mercury in different ways are summarized in this paper.

Conclusion: With the exploration and application of research, people have mastered a variety of mature technologies for the treatment of mercury-containing wastewater. Using inexpensive adsorbents is a cost-effective method for treating low concentrations of heavy metal wastewater. Ion exchange with a fast removal rate has been widely used in the field of heavy metal removal from wastewater. The biological treatment method can effectively treat low-concentration mercurycontaining wastewater. However, there is still a need to develop novel mercury removers with high capacity, fast removal rate, and low removal limit. Nanomaterials with a high specific surface area on substrate with synergistic effects, such as high adsorption and ion exchange, are the future research points.

Keywords:

Mercury, removal, method, wastewater, nanomaterial, mechanism.

Affiliation:

Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, College of Materials Science and Engineering, Wuhan Textile University, Wuhan, 430073, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093

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