Results 271 to 280 of about 59,985 (297)
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Journal of Environmental Quality, 1989
AbstractSorption equilibrium distribution coefficients, Kd's, are often used in solute transport models to predict the movement of hazardous wastes in soils. Kd values can be determined in the laboratory by performing batch equilibrium tests or column studies. However, these tests suffer from disadvantages.
J. A. Celorie +3 more
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AbstractSorption equilibrium distribution coefficients, Kd's, are often used in solute transport models to predict the movement of hazardous wastes in soils. Kd values can be determined in the laboratory by performing batch equilibrium tests or column studies. However, these tests suffer from disadvantages.
J. A. Celorie +3 more
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A semi-product-form for the equilibrium state probabilities in a pair of queues with finite batches
Proceedings of the 12th EAI International Conference on Performance Evaluation Methodologies and Tools, 2019A Markovian network of two queues, with finite size batch Poisson arrivals and departures, is solved approximately, but to arbitrary accuracy, for its equilibrium state probabilities. Below a pair of thresholds on the queue lengths, a modification of the Spectral Expansion Method is used to construct a semi-product-form at all lengths of one queue in a
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Computers & Geosciences, 2010
NIGHTHAWK is a computer program for simulating solute transport and transformations in the saturated subsurface. Supported biogeochemical processes include microbial-mediated degradation, inorganic redox chemistry, aqueous-phase equilibrium speciation, mineral precipitation and dissolution, and several sorption processes including surface complexation,
L. Shawn Matott, Alan J. Rabideau
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NIGHTHAWK is a computer program for simulating solute transport and transformations in the saturated subsurface. Supported biogeochemical processes include microbial-mediated degradation, inorganic redox chemistry, aqueous-phase equilibrium speciation, mineral precipitation and dissolution, and several sorption processes including surface complexation,
L. Shawn Matott, Alan J. Rabideau
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Moving boundary in non-equilibrium simple batch distillation in non-ideal systems
Chemical Engineering and Processing: Process Intensification, 2009Abstract This work is concerned with the computational aspects of the dynamic behavior of a simple distillation process using the irreversible model. The composition trajectories in residue curve map diagrams were calculated for a methanol/isopropanol/water mixture. The composition paths calculated by the irreversible model were compared to published
J.C. Teixeira +4 more
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Batch Sorber Design Using Equilibrium and Contact Time Data for the Removal of Lead
Water, Air, and Soil Pollution, 2000The two-stage batch sorption design ofthe sorption of lead ions onto peat has been studiedbased on a Langmuir isotherm type equation obtainedfrom different contact time studies. A model has beendeveloped to predict the optimised minimum operatingtime to determine a specified amount of lead removal.The sorption capacity at any contact time has ...
Ho, YS, McKay, G.
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Batch Equilibrium and Kinetic Studies of Plasmid pCI Adsorption onto Perfusion Particles
Journal of Liquid Chromatography & Related Technologies, 2014The demand for efficient production methods of plasmid DNA (pDNA) has increased vastly in response to rapid advances in the use of pDNA for third-generation vaccines. The process development requires conduct basic studies in batch format to determine the characteristic parameters of the biomolecule-adsorbent system.
Y. Pérez-Martínez +4 more
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Environmental Earth Sciences, 2011
One of the uncertainties in the field of carbon dioxide capture and storage (CCS) is caused by the parameterization of geochemical models. The application of geochemical models contributes significantly to calculate the fate of the CO2 after its injection.
Frank Dethlefsen +3 more
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One of the uncertainties in the field of carbon dioxide capture and storage (CCS) is caused by the parameterization of geochemical models. The application of geochemical models contributes significantly to calculate the fate of the CO2 after its injection.
Frank Dethlefsen +3 more
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Equilibrium Batch Experiments with Six Polycyclic Aromatic Hydrocarbons and Two Aquifer Materials
Hazardous Waste and Hazardous Materials, 1986ABSTRACT Batch experiments were carried out to investigate the adsorption of six polycyclic aromatic hydrocarbons (PAH) (naphthalene, fluorene, phenanthrene, anthracene, fluoranthene, and pyrene) b...
ABDUL S. ABDUL, THOMAS L. GIBSON
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Adsorption of Methyl Orange from Solution by IOCZ in Batch Mode: Equilibrium Study
Advanced Materials Research, 2012The research was designed to test the properties of Iron-Oxide-Coated-Zeolite (IOCZ) for adsorption of methyl orange (MO) from synthetic solutions. Contact time and equilibrium MO concentration were adopted to study their effects on MO adsorption. The results showed that adsorbent quantity of MO onto IOCZ increased with the equilibrium concentration ...
Shao Hua Chen +4 more
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BATCH REACTOR MODELLING: KINETIC INTEGRATING VAPOR-LIQUID EQUILIBRIUM
2012None
Nguyen, T. +3 more
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