Sepiolite-based adsorbents for the removal of potentially toxic elements from water: a strategic review for the case of environmental contamination in Hunan, China

Zhenghua Wang, Lina Liao, Andrew Hursthouse, Na Song, Bozhi Ren

Research output: Contribution to journalReview article

Abstract

The last few decades have seen rapid industrialization and urban development in many regions globally, with associated pollution by potentially toxic elements, which have become a threat to human health and the food chain. This is particularly prevalent in a number of regions in China that host multiple mineral resources and are important agricultural locations. Solutions to protect contamination of the food chain are more effective and sustainable if locally sourced materials are available, and in this context, we review the potential of local (sepiolite) mineral deposits to treat water contamination in the Hunan Municipality, central south China, widely recognized for significant environmental pollution issues (particularly by Hg, Cd, Pb, and Cr) and the high agricultural productivity of the region. Sepiolite is an abundant fibrous clay mineral with modest to good adsorption properties and extensive industrial process applications. It shows reasonable performance as an adsorbent for element removal. In addition, a number of surface modification strategies are available that improve this capability. We review these studies, focused on sorption reaction mechanisms and regeneration potential, with a view to present options for a localized and effective economic strategy for future application.
Original languageEnglish
Article number1653
Number of pages15
JournalInternational Journal of Environmental Research and Public Health
Volume15
Issue number8
DOIs
Publication statusPublished - 3 Aug 2018

Fingerprint

sepiolite
Mineral resources
Poisons
Adsorbents
Minerals
China
Pollution
Contamination
Food Chain
food chain
Water
Clay minerals
Urban Renewal
Surface treatment
Sorption
Environmental Pollution
Productivity
Health
mineral deposit
mineral resource

Keywords

  • sepiolite
  • adsorption
  • potentially toxic elements
  • modification
  • regeneration
  • Xianjiang River

Cite this

@article{e6650d90418b4839bddd913ebb39e678,
title = "Sepiolite-based adsorbents for the removal of potentially toxic elements from water: a strategic review for the case of environmental contamination in Hunan, China",
abstract = "The last few decades have seen rapid industrialization and urban development in many regions globally, with associated pollution by potentially toxic elements, which have become a threat to human health and the food chain. This is particularly prevalent in a number of regions in China that host multiple mineral resources and are important agricultural locations. Solutions to protect contamination of the food chain are more effective and sustainable if locally sourced materials are available, and in this context, we review the potential of local (sepiolite) mineral deposits to treat water contamination in the Hunan Municipality, central south China, widely recognized for significant environmental pollution issues (particularly by Hg, Cd, Pb, and Cr) and the high agricultural productivity of the region. Sepiolite is an abundant fibrous clay mineral with modest to good adsorption properties and extensive industrial process applications. It shows reasonable performance as an adsorbent for element removal. In addition, a number of surface modification strategies are available that improve this capability. We review these studies, focused on sorption reaction mechanisms and regeneration potential, with a view to present options for a localized and effective economic strategy for future application.",
keywords = "sepiolite, adsorption, potentially toxic elements, modification, regeneration, Xianjiang River",
author = "Zhenghua Wang and Lina Liao and Andrew Hursthouse and Na Song and Bozhi Ren",
year = "2018",
month = "8",
day = "3",
doi = "10.3390/ijerph15081653",
language = "English",
volume = "15",
journal = "International Journal of Environmental Research and Public Health",
issn = "1661-7827",
publisher = "Multidisciplinary Digital Publishing Institute",
number = "8",

}

TY - JOUR

T1 - Sepiolite-based adsorbents for the removal of potentially toxic elements from water

T2 - a strategic review for the case of environmental contamination in Hunan, China

AU - Wang, Zhenghua

AU - Liao, Lina

AU - Hursthouse, Andrew

AU - Song, Na

AU - Ren, Bozhi

PY - 2018/8/3

Y1 - 2018/8/3

N2 - The last few decades have seen rapid industrialization and urban development in many regions globally, with associated pollution by potentially toxic elements, which have become a threat to human health and the food chain. This is particularly prevalent in a number of regions in China that host multiple mineral resources and are important agricultural locations. Solutions to protect contamination of the food chain are more effective and sustainable if locally sourced materials are available, and in this context, we review the potential of local (sepiolite) mineral deposits to treat water contamination in the Hunan Municipality, central south China, widely recognized for significant environmental pollution issues (particularly by Hg, Cd, Pb, and Cr) and the high agricultural productivity of the region. Sepiolite is an abundant fibrous clay mineral with modest to good adsorption properties and extensive industrial process applications. It shows reasonable performance as an adsorbent for element removal. In addition, a number of surface modification strategies are available that improve this capability. We review these studies, focused on sorption reaction mechanisms and regeneration potential, with a view to present options for a localized and effective economic strategy for future application.

AB - The last few decades have seen rapid industrialization and urban development in many regions globally, with associated pollution by potentially toxic elements, which have become a threat to human health and the food chain. This is particularly prevalent in a number of regions in China that host multiple mineral resources and are important agricultural locations. Solutions to protect contamination of the food chain are more effective and sustainable if locally sourced materials are available, and in this context, we review the potential of local (sepiolite) mineral deposits to treat water contamination in the Hunan Municipality, central south China, widely recognized for significant environmental pollution issues (particularly by Hg, Cd, Pb, and Cr) and the high agricultural productivity of the region. Sepiolite is an abundant fibrous clay mineral with modest to good adsorption properties and extensive industrial process applications. It shows reasonable performance as an adsorbent for element removal. In addition, a number of surface modification strategies are available that improve this capability. We review these studies, focused on sorption reaction mechanisms and regeneration potential, with a view to present options for a localized and effective economic strategy for future application.

KW - sepiolite

KW - adsorption

KW - potentially toxic elements

KW - modification

KW - regeneration

KW - Xianjiang River

U2 - 10.3390/ijerph15081653

DO - 10.3390/ijerph15081653

M3 - Review article

VL - 15

JO - International Journal of Environmental Research and Public Health

JF - International Journal of Environmental Research and Public Health

SN - 1661-7827

IS - 8

M1 - 1653

ER -