Test and application research on the anti-seepage performance of bentonite geosynthetic clay liner in leachate environment
Bentonite geosynthetic clay liner is an excellent anti-seepage material,and there are currently no reports on its permeability in leaching environment in China.In this paper,a representative synthetic leaching solution with stable properties and components is prepared as a substitute test medium for the actual leaching solution,and the influence of synthetic leaching solution on the swelling performance and filtration performance of bentonite raw materials is studied.The permeability coefficient of bentonite geosynthetic clay liner is tested under different pressure and temperature conditions in the synthetic leaching solution environment,in order to provide guidance for the use of bentonite geosynthetic clay liner as anti-seepage liner in landfill projects and other solid waste landfill projects.