Chronological 发表于 2025-3-25 06:15:59
Modelling of Diffusion Processes,This chapter provides methods for the calculation of diffusion rates for various boundary conditions in porous particles and low permeability sediment layers. Emphasis is placed on the modeling of sorption/desorption kinetics (including heterogeneous aquifer materials) and diffusion across low permeability layers (e.g. mineral liners).Gingivitis 发表于 2025-3-25 11:09:03
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https://doi.org/10.1007/978-1-4615-5683-1Contamination; Groundwater; contaminant; contaminants; environment; remediation; terrestrial pollution; airORBIT 发表于 2025-3-25 19:38:10
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Introduction,roperties of some common groundwater contaminants are provided, and non-equilibrium effects in advective solute transport in groundwater due to slow diffusion are discussed. In addition, a general overview is given of processes in the subsurface in which molecular diffusion is important (sorption/deenormous 发表于 2025-3-26 08:07:01
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Measured Diffusion Coefficients, Since laboratory experiments allow well-controlled initial and boundary conditions, they are usually much more suitable for accurate measurement of diffusion parameters. In this chapter the time-lag method for the separate measurement of effective diffusion coefficients and capacity factors is intr饥荒 发表于 2025-3-26 16:12:43
Dissolution of Nonaqueous Phase Liquids,anglia. The following chapter addresses the mass transfer processes which control the release of organic compounds from NAPLs and multicomponent NAPL mixtures such as coal tar or creosote. The mass transfer into the aqueous phase depends on the compound’s water solubility and molecular diffusivity.Cumulus 发表于 2025-3-26 18:31:58
,Risk Assessment — Remediation,mass transfer zones is briefly introduced which can be used for risk assessment, e.g. to distinguish maximum contaminant concentrations (equilibrium, e.g. dissolution from residual phase) from maximum contaminant flux (non-equilibrium, e.g. due to slow desorption) into groundwater. Transport of vola