Search Results - "Kosson, D.S."

Leaching, geochemical modelling and field verification of a municipal solid waste and a predominantly non-degradable waste landfill by van der Sloot, H.A., Kosson, D.S., van Zomeren, A.

“…[Display omitted] •Multi-element geochemical description covering mineral and sorptive phases over a wide pH and L/S range.•Identification of solubility…”
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The impact of carbonation on the microstructure and solubility of major constituents in microconcrete materials with varying alkalinities due to fly ash replacement of ordinary Portland cement by Branch, J.L., Kosson, D.S., Garrabrants, A.C., He, P.J.

“…The impact of alkalinity on the carbonation reaction in microconcrete mortars was assessed by evaluating the changes in the microstructure, solubility, and…”
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Numerical simulation of cementitious materials degradation under external sulfate attack by Sarkar, S., Mahadevan, S., Meeussen, J.C.L., van der Sloot, H., Kosson, D.S.

“…A numerical methodology is proposed in this paper to simulate the degradation of cementitious materials under external sulfate attack. The methodology includes…”
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Evaluation of conditions to minimize mercury losses from leaching test eluates by Kelley, L., Delapp, R.C., Garrabrants, A.C., Kosson, D.S.

“…•Storage of solutions in PTFE and glass can minimize losses of mercury in solution.•Losses of mercury to filtration are evident at a pH greater than…”
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Use of characterisation leaching tests and associated modelling tools in assessing the hazardous nature of wastes by van der Sloot, H.A., Kosson, D.S.

“…The evaluation of the hazardous nature of a waste is frequently based on total composition in many jurisdictions, while for most cases the chemical form of the…”
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Life cycle assessment and residue leaching: The importance of parameter, scenario and leaching data selection by Allegrini, E., Butera, S., Kosson, D.S., Van Zomeren, A., Van der Sloot, H.A., Astrup, T.F.

“…•Relevance of metal leaching in waste management system LCAs was assessed.•Toxic impacts from leaching could not be disregarded.•Uncertainty of toxicity, due…”
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Changes in constituent equilibrium leaching and pore water characteristics of a Portland cement mortar as a result of carbonation by Garrabrants, A.C., Sanchez, F., Kosson, D.S.

“…Two equilibrium-based characterization protocols were applied to ground samples of a cement-based material containing metal oxide powders in both noncarbonated…”
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Characteristics, treatment and utilization of residues from municipal waste incineration by van der Sloot, H.A., Kosson, D.S., Hjelmar, O.

“…Beneficial utilization of residues from municipal solid waste incineration is an important objective for integrated waste management in many jurisdictions…”
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An approach for estimation of contaminant release during utilization and disposal of municipal waste combustion residues by Kosson, D.S., van der Sloot, H.A., Eighmy, T.T.

“…The use of appropriate leaching tests and leaching models can help to predict how constituents in municipal waste combustion residues will leach during either…”
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Leaching of inorganic contaminants from cement-based waste materials as a result of carbonation during intermittent wetting by Sanchez, F., Gervais, C., Garrabrants, A.C., Barna, R., Kosson, D.S.

“…Characterization of the leaching behavior of wastes is a crucial step in the environmental assessment for reuse or disposal scenarios. The release of inorganic…”
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Environmental assessment of waste matrices contaminated with arsenic by Sanchez, F., Garrabrants, A.C., Vandecasteele, C., Moszkowicz, P., Kosson, D.S.

“…The use of equilibrium-based and mass transfer-based leaching tests has been proposed to provide an integrated assessment of leaching processes from solid…”
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The impact of carbonation on bulk and ITZ porosity in microconcrete materials with fly ash replacement by Branch, J. L., Epps, R., Kosson, D.S.

“…Scanning electron microscopy was used to evaluate the porosity patterns found in microconcrete materials to better understand the gaseous diffusion pathways…”
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The impact of carbonation on bulk and ITZ porosity in microconcrete materials with fly ash replacement by Branch, J.L., Epps, R., Kosson, D.S.

“…Scanning electron microscopy was used to evaluate the porosity patterns found in microconcrete materials to better understand the gaseous diffusion pathways…”
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Effects of sterilization methods on the physical characteristics of soil: implications for sorption isotherm analyses by LOTRARIO, J. B, STUART, B. J, LAM, T, ARANDS, R. R, O'CONNOR, O. A, KOSSON, D. S

“…Laboratory studies of contaminant partitioning and transport behavior are dependent upon the exclusion of biological activity from the experimental system…”
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Modeling of the gaseous diffusion coefficient through unsaturated soil systems by Schaefer, C.E., Arands, R.R., van der Sloot, H.A., Kosson, D.S.

“…Determination of gaseous phase diffusion through unsaturated soil beds is essential for estimating the transport of volatile contaminants and designing…”
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Prediction and experimental validation of liquid-phase diffusion resistance in unsaturated soils by Schaefer, C.E., Arands, R.R., van der Sloot, H.A., Kosson, D.S.

“…Determination of liquid-phase diffusion through unsaturated soils is important for estimating contaminant transport in soils and design of remediation…”
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Modeling of the gaseous diffusion coefficient in the presence of NAPL by Schaefer, C.E., Arands, R.R., Kosson, D.S.

“…Gas phase diffusional resistance ( D 0/ D) was measured using packed soil columns containing a fixed relative saturation of dodecane with varying moisture…”
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Solution of the nonlinear Poisson–Boltzmann equation: Application to ionic diffusion in cementitious materials by Arnold, J., Kosson, D.S., Garrabrants, A., Meeussen, J.C.L., van der Sloot, H.A.

“…A robust numerical solution of the nonlinear Poisson–Boltzmann equation for asymmetric polyelectrolyte solutions in discrete pore geometries is presented…”
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Bayesian calibration of thermodynamic parameters for geochemical speciation modeling of cementitious materials by Sarkar, S., Kosson, D.S., Mahadevan, S., Meeussen, J.C.L., der Sloot, H. van, Arnold, J.R., Brown, K.G.

“…Chemical equilibrium modeling of cementitious materials requires aqueous–solid equilibrium constants of the controlling mineral phases (Ksp) and the available…”
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Scientific research, stakeholders, and policy: Continuing dialogue during research on radionuclides on Amchitka Island, Alaska by Burger, Joanna, Gochfeld, Michael, Powers, Charles W., Kosson, David S., Halverson, John, Siekaniec, Gregory, Morkill, Anne, Patrick, Robert, Duffy, Lawrence K., Barnes, David

“…It is increasingly clear that a wide range of stakeholders should be included in the problem formulation phase of research aimed at solving environmental…”
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