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Long-term effectiveness of in situ solidification/stabilization

Jin, Fei ORCID: 2020. Long-term effectiveness of in situ solidification/stabilization. Hou, Deyi, ed. Sustainable Remediation of Contaminated Soil and Groundwater, Elsevier, pp. 247-278. (10.1016/B978-0-12-817982-6.00010-0)

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In situ solidification/stabilization (S/S) possesses many advantages compared to other soil remediation technologies such as cost-effectiveness, high operational versatility, and the capability of treating various contaminants. The long-term effectiveness is crucial due to that contaminants remain underground, being exposed to various environmental stresses that may potentially degrade the S/S materials. This chapter reviews the immobilization and leaching mechanisms of contaminants in S/S, which would evolve over time and be affected by numerous factors including the intrinsic properties of materials and environmental conditions. Common methods and models of evaluating/predicting the long-term effectiveness of S/S materials are discussed regarding their applicability and limitations. Importantly, field studies on in situ S/S applications where detailed analyses of the materials exposed to the site conditions for over 1 year were summarized to validate its real-world long-term effectiveness. It is concluded that generally in situ S/S treatment is effective in treating contaminated soils with complex nature for many years. Finally, insights are provided on improving the long-term performance and sustainability of in situ S/S and better assessment methodology. It is hoped that the information presented in this chapter could improve our understanding and facilitate further cross-disciplinary research activities on the long-term performance of in situ S/S.

Item Type: Book Section
Date Type: Published Online
Status: Published
Schools: Engineering
Publisher: Elsevier
ISBN: 9780128179826
Last Modified: 07 Nov 2022 11:18

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