Impervious layer formation process and landfill adsorption syste

Details Impervious layer formation process and landfill adsorption syste Impervious layer formation process and landfill adsorption syste

1988-05-23

1990-03-13

Fisher, Richard V.

Liquid purification or separation

Structural installation

Geographic

210290, 210747, 210617, 210631, 210901, 405129, 405267, B01D 2310, C02F 700

Patent

active

049081292

ABSTRACT:
An arrangement for retaining harmful substances contained in water seeping from a waste dumping ground body includes an impervious layer of mineral sealing materials, such as clay, with an adjacent adsorption layer containing materials capable of binding harmful substances by physical and/or chemical adsorption. The materials may be in the form of admixtures. When seepage water flows very slowly through a layer of mineral sealing materials, it is possible to remove and retain the harmful substances. The permeability of the arrangement reduces with time due to the adsorption process with its sealing effect improving over geological time periods.

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