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Remediation of mercury contaminated soil, water, and air: A review of emerging materials and innovative technologies.

Authors
  • Wang, Liuwei1
  • Hou, Deyi2
  • Cao, Yining1
  • Ok, Yong Sik3
  • Tack, Filip M G4
  • Rinklebe, Jörg5
  • O'Connor, David1
  • 1 School of Environment, Tsinghua University, Beijing 100084, China. , (China)
  • 2 School of Environment, Tsinghua University, Beijing 100084, China. Electronic address: [email protected] , (China)
  • 3 Korea Biochar Research Center & Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea. , (North Korea)
  • 4 Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Ghent, Belgium. , (Belgium)
  • 5 University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, 98 Gunja-Dong, Seoul, Republic of Korea. , (Germany)
Type
Published Article
Journal
Environment international
Publication Date
Jan 01, 2020
Volume
134
Pages
105281–105281
Identifiers
DOI: 10.1016/j.envint.2019.105281
PMID: 31726360
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Mercury contamination in soil, water and air is associated with potential toxicity to humans and ecosystems. Industrial activities such as coal combustion have led to increased mercury (Hg) concentrations in different environmental media. This review critically evaluates recent developments in technological approaches for the remediation of Hg contaminated soil, water and air, with a focus on emerging materials and innovative technologies. Extensive research on various nanomaterials, such as carbon nanotubes (CNTs), nanosheets and magnetic nanocomposites, for mercury removal are investigated. This paper also examines other emerging materials and their characteristics, including graphene, biochar, metal organic frameworks (MOFs), covalent organic frameworks (COFs), layered double hydroxides (LDHs) as well as other materials such as clay minerals and manganese oxides. Based on approaches including adsorption/desorption, oxidation/reduction and stabilization/containment, the performances of innovative technologies with the aid of these materials were examined. In addition, technologies involving organisms, such as phytoremediation, algae-based mercury removal, microbial reduction and constructed wetlands, were also reviewed, and the role of organisms, especially microorganisms, in these techniques are illustrated. Copyright © 2019 The Authors. Published by Elsevier Ltd.. All rights reserved.

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