Experimental Studies on a Self-restoring Liner System that Uses Colloidal Solution for Landfill Sites

Abstract

We propose a self-restoring liner system that uses colloidal solution for landfill sites. The colloidal solution is filled in a pressurized state between a double liner. This prevents the leak of exudation water and immediately forms new liner around a damaged area when liner damage occurs. As a result, the function of the system is restored naturally.
We carried out some basic experiments with colloidal solution of about 3-5% weight ratio. As a result of these experiments, we were able to confirm that mud cake and a penetration deposition layer were formed around a liner damage area by the colloidal solution and that the function of the system was restored.
In addition, we confirmed the long-term continuity of colloidal particle dispersion in the colloidal solution and the fluidity performance of the colloidal solution in the double liner.
From these experimental results, we were able to confirm the possibility of practical application of this liner system that uses colloidal solution.