Given the shortage of information available in the literature on transport parameters of heavy metals in Brazilian
tropical soils, the mobility of manganese (Mn2+) in a residual gneissic compacted soil is studied in this work. Manganese
can be found in toxic concentrations in landfill leachate, besides being one of the main conta...
A method based on the application of Kötter’s equation is proposed for the complete analysis of passive earth
pressure on a vertical wall retaining horizontal cohesionless backfill. The unique failure surface consisting of log spiral and
its tangent is identified on the basis of force equilibrium conditions. On...
This technical note presents some preliminary results obtained with the use of hydrophobic and hydrophilic
tensiometers to measure liquid pressures in three-phase systems (air-NAPL-water). The porous tips of the hydrophobic
tensiometers underwent a surface treatment known as silanization. The silanized tensiometers demonstrated l...
This work studied the transport phenomena in the soil of the Gramacho MSW landfill located in Rio de Janeiro,
Brazil. A model was proposed to determine the mass transfer rate of the leachate contaminant ions to the soil particles.
Previous researchers have focused on the diffusion and sorption phenomena using simple relations tha...
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