Effective Removal of Mercury Ions in Aqueous Solutions: A Review

Author(s): Kang Hua, Xueliu Xu, Zhiping Luo, Dong Fang*, Rui Bao*, Jianhong Yi*.

Journal Name: Current Nanoscience

Volume 16 , Issue 3 , 2020

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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.

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Article Details

VOLUME: 16
ISSUE: 3
Year: 2020
Page: [363 - 375]
Pages: 13
DOI: 10.2174/1573413715666190112110659
Price: $65

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