FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2374107464> ?p ?o ?g. }

• W2374107464 abstract "Chlorinated hydrocarbons(CHs) are widespread organic contaminants in the groundwater system.Among them,trichloroethylene(TCE) is most common.Since TCE is a typical DNAPL(dense non-aqueous phase liquids),it tends to migrate downward into the groundwater system where pools exist.During the migration of trichloroethylene in the vadose zone,soil sorption plays an important role in determining its mobilization,transportation and accommodation.Soil organic matter(SOM) and soil minerals are two major sorbents in the vadose zone which strongly affect sorption behaviors of organic contaminants.Based on batch experiments,the authors studied the adsorption behaviors of trichloroethylene(TCE) in four simulated mineral samples with different ratios of silica to kaolinite(representing respectively primary minerals and clay minerals) and six soil samples with different ratios of total organic matter(TOC) to clay minerals which were collected at different depths of the vadose soil profile.Instead of employing the isolation procedure of SOM which might cause changes in physicochemical properties of SOM,the sorption behaviors of TCE in SOM were predicted by the comparison between soil samples and simulated soil mineral samples.The results obtained show that both the sorption isotherm of soils and that of minerals fit Langmuir sorption model.The maximum sorption capacity of pure kaolinite is nearly 200 μg/kg,while that of pure silica is only about 15 μg/kg.The maximum sorption capacity of clay minerals is almost 13 times as lager as that of primary minerals. The clay minerals contribute most of the sorption capacity of soil minerals,while the primary minerals only present negligible sorption of TCE.The content of TOC is the key factor affecting the sorption of TCE in soils,as the sorption capacity of TCE in SOM is several orders of magnitude larger than that in clay minerals,which accounts for the positive correlation between the content of TOC and the soil sorption capacity.The ratio of TOC to clay minerals is another factor affecting the sorption behaviors of TCE in soils.Soil with lower ratios of TOC to clay minerals would produce higher Koc values.SOM has been reported to be intimately associated with the clay mineral fraction and widely distributed in the environment in the form of organo-clay complexes.The thickness of SOM coating on clay minerals decreases with the decrease of the ratio of TOC to clay minerals on the uniform organo-clay complexes,and the molecular layers close to the mineral surface may take a more compacted form due to the attractive power of mineral surface.Any SOM layer beyond this compacted region may be relatively intensely expanded as the attractive force becomes weaker with the increasing distance from the mineral surface.Therefore,the proportion of the bound SOM in the condensed form would be relatively high at the lower ratio of TOC to clay minerals.Soil with lower ratios of TOC to clay mineral is likely to produce higher Koc values indicating an increasing affinity of TCE for the soil,which suggests that organo-mineral complexes potentially play an important role in regulating the accessibility and distribution of sorption sites for organic chemicals,and are thus important in the study of sorption mechanism." @default.
• W2374107464 created "2016-06-24" @default.
• W2374107464 creator A5007784157 @default.
• W2374107464 date "2010-01-01" @default.
• W2374107464 modified "2023-09-25" @default.
• W2374107464 title "The influence of soil constitution on the sorption of trichloroethylene in the vadose zone" @default.
• W2374107464 hasPublicationYear "2010" @default.
• W2374107464 type Work @default.
• W2374107464 sameAs 2374107464 @default.
• W2374107464 citedByCount "1" @default.
• W2374107464 crossrefType "journal-article" @default.
• W2374107464 hasAuthorship W2374107464A5007784157 @default.
• W2374107464 hasConcept C107872376 @default.
• W2374107464 hasConcept C127313418 @default.
• W2374107464 hasConcept C150394285 @default.
• W2374107464 hasConcept C159390177 @default.
• W2374107464 hasConcept C159750122 @default.
• W2374107464 hasConcept C178790620 @default.
• W2374107464 hasConcept C185592680 @default.
• W2374107464 hasConcept C187320778 @default.
• W2374107464 hasConcept C199289684 @default.
• W2374107464 hasConcept C2779404209 @default.
• W2374107464 hasConcept C2779899878 @default.
• W2374107464 hasConcept C35588792 @default.
• W2374107464 hasConcept C40212044 @default.
• W2374107464 hasConcept C48743137 @default.
• W2374107464 hasConcept C58445606 @default.
• W2374107464 hasConcept C76177295 @default.
• W2374107464 hasConceptScore W2374107464C107872376 @default.
• W2374107464 hasConceptScore W2374107464C127313418 @default.
• W2374107464 hasConceptScore W2374107464C150394285 @default.
• W2374107464 hasConceptScore W2374107464C159390177 @default.
• W2374107464 hasConceptScore W2374107464C159750122 @default.
• W2374107464 hasConceptScore W2374107464C178790620 @default.
• W2374107464 hasConceptScore W2374107464C185592680 @default.
• W2374107464 hasConceptScore W2374107464C187320778 @default.
• W2374107464 hasConceptScore W2374107464C199289684 @default.
• W2374107464 hasConceptScore W2374107464C2779404209 @default.
• W2374107464 hasConceptScore W2374107464C2779899878 @default.
• W2374107464 hasConceptScore W2374107464C35588792 @default.
• W2374107464 hasConceptScore W2374107464C40212044 @default.
• W2374107464 hasConceptScore W2374107464C48743137 @default.
• W2374107464 hasConceptScore W2374107464C58445606 @default.
• W2374107464 hasConceptScore W2374107464C76177295 @default.
• W2374107464 hasLocation W23741074641 @default.
• W2374107464 hasOpenAccess W2374107464 @default.
• W2374107464 hasPrimaryLocation W23741074641 @default.
• W2374107464 hasRelatedWork W1431028125 @default.
• W2374107464 hasRelatedWork W1883446733 @default.
• W2374107464 hasRelatedWork W2019517780 @default.
• W2374107464 hasRelatedWork W2034430765 @default.
• W2374107464 hasRelatedWork W2059880973 @default.
• W2374107464 hasRelatedWork W2063429117 @default.
• W2374107464 hasRelatedWork W2088615926 @default.
• W2374107464 hasRelatedWork W2092592074 @default.
• W2374107464 hasRelatedWork W2099328073 @default.
• W2374107464 hasRelatedWork W2161375308 @default.
• W2374107464 hasRelatedWork W2163210467 @default.
• W2374107464 hasRelatedWork W2359327828 @default.
• W2374107464 hasRelatedWork W2362888046 @default.
• W2374107464 hasRelatedWork W2377940792 @default.
• W2374107464 hasRelatedWork W2383679310 @default.
• W2374107464 hasRelatedWork W2384694215 @default.
• W2374107464 hasRelatedWork W2413354124 @default.
• W2374107464 hasRelatedWork W2578861857 @default.
• W2374107464 hasRelatedWork W3138571171 @default.
• W2374107464 hasRelatedWork W2184684930 @default.
• W2374107464 isParatext "false" @default.
• W2374107464 isRetracted "false" @default.
• W2374107464 magId "2374107464" @default.
• W2374107464 workType "article" @default.