Long-term effectiveness of in situ solidification/stabilization

Jin, F. (2020) Long-term effectiveness of in situ solidification/stabilization. In: Hou, D. (ed.) Sustainable Remediation of Contaminated Soil and Groundwater: Materials, Processes, and Assessment. Butterworth-Heinemann: Oxford ; Cambridge, MA, pp. 247-278. ISBN 9780128179826 (doi: 10.1016/B978-0-12-817982-6.00010-0)

Abstract

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 Sections
• Status: Published
• Glasgow Author(s) Enlighten ID: Jin, Dr Fei
• Authors: Jin, F.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Publisher: Butterworth-Heinemann
• ISBN: 9780128179826
• Published Online: 21 February 2020