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Vadose - Model RCM -Reactive Core Mat for Contaminated Sediment Capping
The Reactive Core Mat (RCM) is an innovative solution for remediating contaminated sediments through active capping. This permeable composite mat incorporates active materials, such as Organoclay, FluoroSorb, or activated carbon, between non-woven geotextile layers, providing a barrier that allows water to pass while capturing contaminants. By isolating compromised sediments and preventing re-suspension, RCM effectively mitigates exposure risks. It offers flexibility for full or partial sediment capping and can be implemented as an alternative or complement to dredging, especially in scenarios where traditional sand caps are impractical. The customized design of RCM, leveraging adsorptive media, contributes to reduced cap thickness and aids in the restoration of benthic environments. Technical considerations in selecting RCM include site-specific factors affecting remediation efforts and media choice to optimize contaminant capture.
Deployed as an active in situ treatment layer directly over contaminated sediment, REACTIVE CORE MAT can be deployed instead of - or in combination with - dredging. Depending on site conditions, traditional sand caps may prove unfeasible, or result in an excessively thick design. Active cap designs incorporate adsorptive media to capture the contaminants and result in a reduced cap thickness.
REACTIVE CORE MAT is a patented permeable composite mat that encapsulates active material(s) between two layers of adhered, non-woven carrier geotextiles. Allowing water to pass through the active material to remove the contaminant while physically isolating contaminated sediments from the environment of the reestablished benthic zone.