Behavior of liners submitted to pyritic wastes contact
DOI:
https://doi.org/10.14195/2184-8394_108_8Keywords:
Confinement layers, Acidic waters, Coal tailingsAbstract
This research aims to analyze the compressive behavior of compacted soil liners submitted to the percolation of acids waters using a column apparatus developed in this research, adapted from a standard edometric equipment. The concentrations of sulfuric acid in the aqueous solution studied were 0, 2, 6 and 10%, which were percolated through the samples before the compressive tests, under a hydraulic gradient of 10 and 20. The settlements of the samples increased with the increase of acid concentration in the percolate. The variation in the sample height was higher in tests conducted under a gradient of 20, when compared to the testes performed under a gradient of 10.
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