Progress in the remediation of hazardous heavy metal-polluted soils by natural zeolite

• Published in: Journal of hazardous materials Vol. 170; no. 1; pp. 1 - 6
• Main Authors: Shi, Wei-yu, Shao, Hong-bo, Li, Hua, Shao, Ming-an, Du, Sheng
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.10.2009; Elsevier
• Subjects: Applied sciences; Chemical engineering; Cobalt; Conservation of Natural Resources; Crystallization, leaching, miscellaneous separations; Decontamination. Miscellaneous; Environment; Environmental Restoration and Remediation - methods; Environmental Restoration and Remediation - trends; Exact sciences and technology; Hazardous; Hazardous heavy metal; Hazardous Waste; Heavy metals; Leaching; Metals, Heavy; Natural zeolite; Pollution; Pollution abatement; Recycling; Remediation; Soil; Soil and sediments pollution; Soil Pollutants; Soils; Zeolites; Natural zeolite; Soil; Hazardous heavy metal; Environment; Remediation; Recycling; Zeolite; Soil pollution; Heavy metal; Transport process; Rhizosphere; Amendment; Decontamination; Lixiviation
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2009.04.097

Hazardous heavy metal pollution of soils is an increasingly urgent problem all over the world. The zeolite as a natural amendment has been studied extensively for the remediation of hazardous heavy metal-polluted soils with recycling. But its theory and application dose are not fully clear. This paper reviews the related aspects of theory and application progress for the remediation of hazardous heavy metal-polluted soils by natural zeolite, with special emphasis on single/co-remediation. Based on the comments on hazardous heavy metal behavior characteristics in leaching and rhizosphere and remediation with zeolite for heavy metal-polluted soils, it indicated that the research of rhizosphere should be strengthened. Theory of remediation with natural zeolite could make breakthroughs due to the investigation on synthetic zeolite. Co-remediation with natural zeolite may be applied and studied with more prospect and sustainable recycling.