Matches in SemOpenAlex for { <https://semopenalex.org/work/W2182812247> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W2182812247 abstract "We used an experimental approach to study the relationship between hydrodynamic parameters and reactivity at the pore-scale. In the experimental setup, denitrification occurs in 2 mm diameter reactive tubes for different flow velocities which control the fluid residence-time and may impact on reaction kinetics. Conversely to most of the experiments, the carbon source is the tube itself and C is present in a homogeneous manner all along the tubes. This experiment shows reaction kinetics close to the ones observed at the field- or lab-scale with aquifer material (both water and rocks). For short time scales, the experiments show two main phases: a first phase where the nitrate consumption is biologically controlled and a second phase where the nitrate consumption is physically controlled. The reactivity becomes localized and migrates towards the tube inflow with increasing time. This experiment provides useful information on the time scale needed for in situ reactivity assessments and for the building up of a reactivity model, in which the maximum concentration variation (Cin-Cout) is controlled by fluid velocity whereas the initial concentration variation is independent of fluid velocity. For long time behavior we study the reactivity response to cyclic variations of tube flow velocities. The long term assessment of the system reveals a complex reactive scheme leading to an oscillatory behavior of the reactivity. This complex evolution of reactivity to cyclic hydrodynamic conditions involves different biological and physical controls such as biofilm growth, bioaccumulation of by-products but also residence times, diffusion depth in the biofilm and shear stresses. The experiment is mostly in transient conditions from a reactivity point of view despite simple physical conditions. It highlights that biologically mediated reactivity may be highly dependent upon the history of the system. These studies show how biological and physical processes may be coupled to control the initiation of denitrification process at the pore-scale. The complexity of the reactivity highlights the relevance of dynamic experiments over static ones for the understanding of dynamic processes." @default.
- W2182812247 created "2016-06-24" @default.
- W2182812247 creator A5025816449 @default.
- W2182812247 creator A5033313852 @default.
- W2182812247 creator A5057511189 @default.
- W2182812247 date "2011-01-01" @default.
- W2182812247 modified "2023-09-27" @default.
- W2182812247 title "Influence of flow velocity on denitrification in a pore-scale lab experiment" @default.
- W2182812247 hasPublicationYear "2011" @default.
- W2182812247 type Work @default.
- W2182812247 sameAs 2182812247 @default.
- W2182812247 citedByCount "0" @default.
- W2182812247 crossrefType "journal-article" @default.
- W2182812247 hasAuthorship W2182812247A5025816449 @default.
- W2182812247 hasAuthorship W2182812247A5033313852 @default.
- W2182812247 hasAuthorship W2182812247A5057511189 @default.
- W2182812247 hasConcept C121332964 @default.
- W2182812247 hasConcept C127313418 @default.
- W2182812247 hasConcept C142724271 @default.
- W2182812247 hasConcept C178790620 @default.
- W2182812247 hasConcept C185592680 @default.
- W2182812247 hasConcept C187320778 @default.
- W2182812247 hasConcept C204787440 @default.
- W2182812247 hasConcept C2775913793 @default.
- W2182812247 hasConcept C2776132308 @default.
- W2182812247 hasConcept C2776910235 @default.
- W2182812247 hasConcept C38349280 @default.
- W2182812247 hasConcept C537208039 @default.
- W2182812247 hasConcept C57879066 @default.
- W2182812247 hasConcept C69357855 @default.
- W2182812247 hasConcept C71924100 @default.
- W2182812247 hasConcept C73593433 @default.
- W2182812247 hasConcept C97355855 @default.
- W2182812247 hasConceptScore W2182812247C121332964 @default.
- W2182812247 hasConceptScore W2182812247C127313418 @default.
- W2182812247 hasConceptScore W2182812247C142724271 @default.
- W2182812247 hasConceptScore W2182812247C178790620 @default.
- W2182812247 hasConceptScore W2182812247C185592680 @default.
- W2182812247 hasConceptScore W2182812247C187320778 @default.
- W2182812247 hasConceptScore W2182812247C204787440 @default.
- W2182812247 hasConceptScore W2182812247C2775913793 @default.
- W2182812247 hasConceptScore W2182812247C2776132308 @default.
- W2182812247 hasConceptScore W2182812247C2776910235 @default.
- W2182812247 hasConceptScore W2182812247C38349280 @default.
- W2182812247 hasConceptScore W2182812247C537208039 @default.
- W2182812247 hasConceptScore W2182812247C57879066 @default.
- W2182812247 hasConceptScore W2182812247C69357855 @default.
- W2182812247 hasConceptScore W2182812247C71924100 @default.
- W2182812247 hasConceptScore W2182812247C73593433 @default.
- W2182812247 hasConceptScore W2182812247C97355855 @default.
- W2182812247 hasLocation W21828122471 @default.
- W2182812247 hasOpenAccess W2182812247 @default.
- W2182812247 hasPrimaryLocation W21828122471 @default.
- W2182812247 hasRelatedWork W1569101253 @default.
- W2182812247 hasRelatedWork W1646079903 @default.
- W2182812247 hasRelatedWork W1906242502 @default.
- W2182812247 hasRelatedWork W1946044581 @default.
- W2182812247 hasRelatedWork W2011510649 @default.
- W2182812247 hasRelatedWork W2018747312 @default.
- W2182812247 hasRelatedWork W2045914294 @default.
- W2182812247 hasRelatedWork W2065814297 @default.
- W2182812247 hasRelatedWork W2083896528 @default.
- W2182812247 hasRelatedWork W2084954944 @default.
- W2182812247 hasRelatedWork W2132273069 @default.
- W2182812247 hasRelatedWork W2315161805 @default.
- W2182812247 hasRelatedWork W2330608235 @default.
- W2182812247 hasRelatedWork W2521877679 @default.
- W2182812247 hasRelatedWork W2599928514 @default.
- W2182812247 hasRelatedWork W2888213901 @default.
- W2182812247 hasRelatedWork W3089335297 @default.
- W2182812247 hasRelatedWork W3091960486 @default.
- W2182812247 hasRelatedWork W3135426768 @default.
- W2182812247 hasRelatedWork W2181456396 @default.
- W2182812247 isParatext "false" @default.
- W2182812247 isRetracted "false" @default.
- W2182812247 magId "2182812247" @default.
- W2182812247 workType "article" @default.