A critical review on bioremediation technologies for Cr(VI)-contaminated soils and wastewater

Shaopan Xia, Zhaoliang Song, Paramsothy Jeyakumar, Sabry M. Shaheen, Jörg Rinklebe, Yong Sik Ok, Nanthi Bolan, Hailong Wang

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Chromium (Cr) is a potentially toxic metal originating from natural processes and anthropogenic activities such as the iron-steel, electroplating, and leather industries, which is carcinogen to living organisms and has an ecological risk. Hence, research into the remediation of Cr pollution has attracted widespread attention. Bioremediation techniques have advantages of causing little disturbance to soil and water, low cost, simple and convenient operation, and less secondary pollution. In this review, we briefly describe the chemical properties of Cr, sources of Cr pollution, environmental quality, toxicological/health effects of Cr, and analytical methods. We also discuss the factors that govern methods for the bioremediation of Cr and compare their advantages and disadvantages. In particular, we focus on efforts to establish Cr bioremediation processes and their mechanisms. The main mechanisms include biosorption, bioaccumulation, complexation, electrostatic attraction, Cr(VI) reduction to Cr(III), and ion exchange, which decrease the Cr(VI) concentrations and convert Cr(VI) into Cr(III) lowering its toxicity and making it environmentally benign. However, bioremediation is still a challenging technique and most studies remain at the laboratory stage. Therefore we suggest areas for future research and provide theoretical guidance and a scientific basis for the application of biosorbents for Cr(VI) bioremediation in soils and wastewater.

Original languageEnglish
JournalCritical Reviews in Environmental Science and Technology
DOIs
Publication statusAccepted/In press - 2019 Jan 1

Fingerprint

Bioremediation
bioremediation
chromium
Chromium
Wastewater
Soils
wastewater
Pollution
pollution
contaminated soil
Bioaccumulation
Carcinogens
Biosorption
Leather
Electroplating
carcinogen
Complexation
Remediation
complexation
environmental quality

Keywords

  • biomaterial
  • biosorption
  • biotransformation
  • Chromium
  • Cr(VI) reduction

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Cite this

A critical review on bioremediation technologies for Cr(VI)-contaminated soils and wastewater. / Xia, Shaopan; Song, Zhaoliang; Jeyakumar, Paramsothy; Shaheen, Sabry M.; Rinklebe, Jörg; Ok, Yong Sik; Bolan, Nanthi; Wang, Hailong.

In: Critical Reviews in Environmental Science and Technology, 01.01.2019.

Research output: Contribution to journalArticle

Xia, Shaopan ; Song, Zhaoliang ; Jeyakumar, Paramsothy ; Shaheen, Sabry M. ; Rinklebe, Jörg ; Ok, Yong Sik ; Bolan, Nanthi ; Wang, Hailong. / A critical review on bioremediation technologies for Cr(VI)-contaminated soils and wastewater. In: Critical Reviews in Environmental Science and Technology. 2019.
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