Abstract
The amendment-induced immobilization of heavy metals has been considered as a cost-effective and easily operational method for remediation of contaminated soils. This method relies on the amendments to convert heavy metals into stable forms, by sorption, precipitation, complexation, ion exchange, or redox process, thereby decreasing mobility and bioavailability of heavy metals. Among the amendments, phosphate-, carbonate-, and silicate-based materials were most commonly used. In this paper, a review was made on the development of our research on such an immobilization treatment with more attention paid to the molecular mechanism and field application. The impact factors, long-term effects, possible secondary pollution, and effects on the soil property related to the treatment were also discussed.
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Acknowledgments
The author is grateful for the financial support from the Ministry of Environmental Protection of China (No. 201537023), Natural Science Foundation of China (No. 21537002, 20877056, 21077072, 21377081, 21428702), and Key Laboratory of Bio-organic Fertilizer Creation of Ministry of Agriculture (No. BOFC2015KA04).
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Cao, X. (2018). Immobilization of Heavy Metals in Contaminated Soils Amended by Phosphate-, Carbonate-, and Silicate-Based Materials: From Lab to Field. In: Luo, Y., Tu, C. (eds) Twenty Years of Research and Development on Soil Pollution and Remediation in China. Springer, Singapore. https://doi.org/10.1007/978-981-10-6029-8_32
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DOI: https://doi.org/10.1007/978-981-10-6029-8_32
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