Hydraulic Conductivity and Compressibility of Soil-Bentonite Backfill Amended with Activated Carbon

Treatment Efficiency and Compressibility Behavior of Soil Modified With Powdered Activated Carbon

“…Similar observation on the behavior of soil modified with GAC and PAC was reported by Malusis et al [19]. Calculation of the compression index was carried out using Eq.…”

“…The Cc values calculated were found to be 0.24 and 0.27 for unmodified soil and soil-PAC mixture, respectively. Addition of PAC is expected to cause slight reduction in the microstructural rigidity of the soil skeleton [19]. Furthermore, since the compressive strength of PAC is lower than soil, rearrangement in the microstructure is expected to occur.…”

“…The volume change behaviors of both unmodified and PAC-modified soils were carried out simultaneously using the standard oedometer method [19]. It is anticipated that changes in the pore fluid ionic concentrations would affect the engineering behavior of soils [22][23] [24].…”

“…Modification of the riverbank with activated carbon filters however, may affect the stability of the riverbank. Malusis et al, [19] reported that soil modified with activated carbon up to 10% by weight would result in decreased permeability and increased compressibility. Thus, in constructing a RBF, the balance between water treatment efficiency and the compressibility should be taken into consideration.…”

Hydraulic Conductivity of Fly Ash-Amended Mine Tailings

“…Therefore, a technique was adopted from Malusis et al (2009) whereby an acrylic cylinder was placed on the outside of the flexible membrane to avoid slumping of the slurried specimens via providing rigid lateral support for the soft material. A smaller flexible-wall specimen, with length and diameter = 71.1 mm, was used to accommodate the acrylic mold.…”