Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783115811> ?p ?o ?g. }
Showing items 1 to 84 of
84
with 100 items per page.
- W2783115811 endingPage "56" @default.
- W2783115811 startingPage "46" @default.
- W2783115811 abstract "The main reservoir for multicomponent industrial effluents entering the geological environment is the porous space of weakly permeable blocks of rocks.The flow of components of industrial wastes from permeable cracks or layers into a block occurs by diffusion together with the mass exchange of the liquid and solid phases due to ion exchange and the dissolution/precipitation of minerals. The most popular mass exchange model for the migration forecast is a linear sorption isotherm, where the main parameter is the distribution coefficient between the phases (K d ). In this paper we analyze the applying of this approach to complex models that take into account the multicomponent composition of the waste. The driving force of diffusion is the gradient of electrochemical potential. The first relatively simple model includes the dominant salt, and the salt of the microcomponent, whose cation can form complexes with the anion and be sorbed according to the Henry isotherm. Our second model of ion diffusion takes into account complex formation, cation exchange and interaction with minerals. The results of these models are compared with the analytical solution with a constant distribution coefficient. Liquid radioactive wastes with dangerous microcomponents, radioactive cesium and strontium, were chosen for the study. At the same time, stable isotopes of cesium and strontium exist in natural groundwater. We use the conditions of two sites of the radioactive waste disposal. The sites are chosen by the prevailing components of the composition: the waste of the first one (Siberian Chemical Works — SCW), is nitrate-sodium brine, and groundwater is fresh, the second one (Research Institute of Atomic Reactors — RIAR) has brackish waste and groundwater is chloride-sodium brine. Both models show agreement with the analytical solution (constant K d ) only for the dominant sodium nitrate. For microcomponents, cation concentrations form a maximum and anions form a minimum at the block boundary, even if the initial and boundary conditions for these components are equal. The reasons are the changing ionic strength of the solution and the change in the composition of the exchange complex. The distribution coefficient of microcomponents, calculated as the ratio of concentrations in water and rock, varies along the migration path and in time by orders of magnitude. Therefore, using of a constant Kd can lead to significant errors in the prediction of migration. However, the models of multicomponent diffusion in regional forecasts require the resource and speed of computers that far exceed the commonly used in practice studies." @default.
- W2783115811 created "2018-01-26" @default.
- W2783115811 creator A5009475120 @default.
- W2783115811 creator A5081791933 @default.
- W2783115811 creator A5083887635 @default.
- W2783115811 date "2017-01-01" @default.
- W2783115811 modified "2023-09-26" @default.
- W2783115811 title "ACCOUNTING OF SORPTION IN THE DIFFUSION MODELING IN ROCKS OF LOW-PERMEABILITY" @default.
- W2783115811 doi "https://doi.org/10.25296/1993-5056-2017-6-46-56" @default.
- W2783115811 hasPublicationYear "2017" @default.
- W2783115811 type Work @default.
- W2783115811 sameAs 2783115811 @default.
- W2783115811 citedByCount "0" @default.
- W2783115811 crossrefType "journal-article" @default.
- W2783115811 hasAuthorship W2783115811A5009475120 @default.
- W2783115811 hasAuthorship W2783115811A5081791933 @default.
- W2783115811 hasAuthorship W2783115811A5083887635 @default.
- W2783115811 hasBestOaLocation W27831158111 @default.
- W2783115811 hasConcept C117760992 @default.
- W2783115811 hasConcept C121332964 @default.
- W2783115811 hasConcept C127313418 @default.
- W2783115811 hasConcept C13965031 @default.
- W2783115811 hasConcept C145148216 @default.
- W2783115811 hasConcept C147789679 @default.
- W2783115811 hasConcept C150394285 @default.
- W2783115811 hasConcept C178790620 @default.
- W2783115811 hasConcept C179104552 @default.
- W2783115811 hasConcept C185592680 @default.
- W2783115811 hasConcept C187320778 @default.
- W2783115811 hasConcept C192552737 @default.
- W2783115811 hasConcept C199289684 @default.
- W2783115811 hasConcept C2776957854 @default.
- W2783115811 hasConcept C43617362 @default.
- W2783115811 hasConcept C518915863 @default.
- W2783115811 hasConcept C519659679 @default.
- W2783115811 hasConcept C58445606 @default.
- W2783115811 hasConcept C69357855 @default.
- W2783115811 hasConcept C76177295 @default.
- W2783115811 hasConcept C88380143 @default.
- W2783115811 hasConcept C89690796 @default.
- W2783115811 hasConcept C97355855 @default.
- W2783115811 hasConceptScore W2783115811C117760992 @default.
- W2783115811 hasConceptScore W2783115811C121332964 @default.
- W2783115811 hasConceptScore W2783115811C127313418 @default.
- W2783115811 hasConceptScore W2783115811C13965031 @default.
- W2783115811 hasConceptScore W2783115811C145148216 @default.
- W2783115811 hasConceptScore W2783115811C147789679 @default.
- W2783115811 hasConceptScore W2783115811C150394285 @default.
- W2783115811 hasConceptScore W2783115811C178790620 @default.
- W2783115811 hasConceptScore W2783115811C179104552 @default.
- W2783115811 hasConceptScore W2783115811C185592680 @default.
- W2783115811 hasConceptScore W2783115811C187320778 @default.
- W2783115811 hasConceptScore W2783115811C192552737 @default.
- W2783115811 hasConceptScore W2783115811C199289684 @default.
- W2783115811 hasConceptScore W2783115811C2776957854 @default.
- W2783115811 hasConceptScore W2783115811C43617362 @default.
- W2783115811 hasConceptScore W2783115811C518915863 @default.
- W2783115811 hasConceptScore W2783115811C519659679 @default.
- W2783115811 hasConceptScore W2783115811C58445606 @default.
- W2783115811 hasConceptScore W2783115811C69357855 @default.
- W2783115811 hasConceptScore W2783115811C76177295 @default.
- W2783115811 hasConceptScore W2783115811C88380143 @default.
- W2783115811 hasConceptScore W2783115811C89690796 @default.
- W2783115811 hasConceptScore W2783115811C97355855 @default.
- W2783115811 hasIssue "6" @default.
- W2783115811 hasLocation W27831158111 @default.
- W2783115811 hasOpenAccess W2783115811 @default.
- W2783115811 hasPrimaryLocation W27831158111 @default.
- W2783115811 hasRelatedWork W1996560765 @default.
- W2783115811 hasRelatedWork W1998023158 @default.
- W2783115811 hasRelatedWork W2002018986 @default.
- W2783115811 hasRelatedWork W2009984058 @default.
- W2783115811 hasRelatedWork W2029010065 @default.
- W2783115811 hasRelatedWork W2143980208 @default.
- W2783115811 hasRelatedWork W2784472393 @default.
- W2783115811 hasRelatedWork W3113033918 @default.
- W2783115811 hasRelatedWork W3145590345 @default.
- W2783115811 hasRelatedWork W2095413262 @default.
- W2783115811 isParatext "false" @default.
- W2783115811 isRetracted "false" @default.
- W2783115811 magId "2783115811" @default.
- W2783115811 workType "article" @default.