Chromium contamination of soils presents a significant environmental and health risk due to its toxicity, mobility, and persistence. Traditional remediation techniques often concentrate only on physical or chemical treatments, which may not fully address the complexities of chromium-contaminated sites. This chapter explores integrated strategies that combine biological, chemical, and physical methods for the effective remediation of chromium-contaminated soils. It provides a comprehensive overview of current technologies, emphasizing synergistic approaches that enhance contaminant removal, reduce secondary pollution, and restore soil functionality. The chapter discusses phytoremediation using chromium-accumulating plants, microbial-assisted bioremediation, chemical stabilization with organic and inorganic amendments, and electrokinetic remediation techniques. Furthermore, it highlights the importance of site-specific assessments, risk analysis, and sustainability considerations in designing remediation plans. Emerging technologies and future directions, such as nanotechnology and genetic engineering, are also reviewed. By integrating multiple remediation approaches, this chapter aims to provide a roadmap for practitioners and researchers seeking efficient and eco-friendly solutions for managing chromium-polluted soils.

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Integrated Strategies for Effective Remediation of Chromium-Contaminated Soils

  • Prasann Kumar

摘要

Chromium contamination of soils presents a significant environmental and health risk due to its toxicity, mobility, and persistence. Traditional remediation techniques often concentrate only on physical or chemical treatments, which may not fully address the complexities of chromium-contaminated sites. This chapter explores integrated strategies that combine biological, chemical, and physical methods for the effective remediation of chromium-contaminated soils. It provides a comprehensive overview of current technologies, emphasizing synergistic approaches that enhance contaminant removal, reduce secondary pollution, and restore soil functionality. The chapter discusses phytoremediation using chromium-accumulating plants, microbial-assisted bioremediation, chemical stabilization with organic and inorganic amendments, and electrokinetic remediation techniques. Furthermore, it highlights the importance of site-specific assessments, risk analysis, and sustainability considerations in designing remediation plans. Emerging technologies and future directions, such as nanotechnology and genetic engineering, are also reviewed. By integrating multiple remediation approaches, this chapter aims to provide a roadmap for practitioners and researchers seeking efficient and eco-friendly solutions for managing chromium-polluted soils.