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University of Padua IMAGE Department |
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Liner Types |
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Bottom barriers • Provide impermeabilization to leachate • Prevent biogas from escaping into the environment • Provide mechanical support for the waste mass • Avoid accumulation of leachate by means of the filtration, drainage and collection system located above the bottom barrier Side barriers • Provide impermeabilization to leachate and to external water fluxes • Provide mechanical resistance to water pressure • Provide drainage of leachate and, if necessary, external water • Prevent lateral migration of biogas Top cover • Prevent biogas from esaping into the environment • Avoid or reduce rainwater infiltrations through a combination of sealing and drainage functions • Provide support for aftercare options such as vegetation and erosion control |