Research on Engineered Barrier Technology by CRESP's Landfill Partnership. Craig H. Benson, PhD, PE, DGE Wisconsin Distinguished Professor University of Wisconsin-Madison/CRESP [email protected] On-Site Disposal Facility (OSDF): aka LLW or MW Landfill. Final Cover System. MONITORING
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Figure courtesy M. Othman, Geosyntec Consultants
Speculative discussion at Paducah in March ‘11.
Literature suggests lifespan may be more than 1000 yr.
No data for conditions in LLW or MW facilities.
No credible scientific data for LLW or MW to draw inference, but methods from solid waste literature
Rip-rap surface layer
Gravel Admixture Topsoil Surface Layer
Out of Waste
Diffusion and sorption tests for geomembranes.
Evaluating new geomembrane with exceptionally low radon diffusion coefficient.
Forward “Class A” predictions using independently measured input parameters (not calibrated)