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Frontiers of Environmental Science & Engineering >> 2018, Volume 12, Issue 2 doi: 10.1007/s11783-018-1028-9

Stabilization-based soil remediation should consider long-term challenges

. Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton AB T6G 2E3, Canada.. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China

Available online: 2018-01-25

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Soil remediation is of increasing importance globally, especially in developing countries. Among available remediation options, stabilization, which aims to immobilize contaminants within soil, has considerable advantages, including that it is cost-effective, versatile, sustainable, rapid, and often results in less secondary pollution. However, there are emerging challenges regarding the long-term performance of the technology, which may be affected by a range of environmental factors. These challenges stem from a research gap regarding the development of accurate, quantitative laboratory simulations of long-term conditions, whereby laboratory accelerated aging methods could be normalized to real field conditions. Therefore, field trials coupled with long-term monitoring are critical to further verify conditions under which stabilization is effective. Sustainability is also an important factor affecting the long-term stability of site remediation. It is hence important to consider these challenges to develop an optimized application of stabilization technology in soil remediation.

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