Matches in SemOpenAlex for { <https://semopenalex.org/work/W1844404727> ?p ?o ?g. }
- W1844404727 endingPage "457" @default.
- W1844404727 startingPage "445" @default.
- W1844404727 abstract "In this article we present a study of the effects of external and internal mass transfer limitation of oxygen in a nitrifying system. The oxygen uptake rates (OUR) were measured on both a macro-scale with a respirometric reactor using off-gas analysis (Titrimetric and Off-Gas Analysis (TOGA) sensor) and on a micro-scale with microsensors. These two methods provide independent, accurate measurements of the reaction rates and concentration profiles around and in the granules. The TOGA sensor and microsensor measurements showed a significant external mass transfer effect at low dissolved oxygen (DO) concentrations in the bulk liquid while it was insignificant at higher DO concentrations. The oxygen distribution with anaerobic or anoxic conditions in the center clearly shows major mass transfer limitation in the aggregate interior. The large drop in DO concentration of 22–80% between the bulk liquid and aggregate surface demonstrates that the external mass transfer resistance is also highly important. The maximum OUR even for floccular biomass was only attained at much higher DO concentrations (≈8 mg/L) than typically used in such systems. For granules, the DO required for maximal activity was estimated to be >20 mg/L, clearly indicating the effects of the major external and internal mass transfer limitations on the overall biomass activity. Smaller aggregates had a larger volumetric OUR indicating that the granules may have a lower activity in the interior part of the aggregate. © 2004 Wiley Periodicals, Inc." @default.
- W1844404727 created "2016-06-24" @default.
- W1844404727 creator A5026012656 @default.
- W1844404727 creator A5028407513 @default.
- W1844404727 creator A5072560200 @default.
- W1844404727 date "2004-03-24" @default.
- W1844404727 modified "2023-10-01" @default.
- W1844404727 title "Determination of external and internal mass transfer limitation in nitrifying microbial aggregates" @default.
- W1844404727 cites W142039677 @default.
- W1844404727 cites W1963788862 @default.
- W1844404727 cites W1965086677 @default.
- W1844404727 cites W1972065206 @default.
- W1844404727 cites W1982269079 @default.
- W1844404727 cites W1987639417 @default.
- W1844404727 cites W1990183958 @default.
- W1844404727 cites W1991596809 @default.
- W1844404727 cites W2001959986 @default.
- W1844404727 cites W2005140993 @default.
- W1844404727 cites W2005143673 @default.
- W1844404727 cites W2009328530 @default.
- W1844404727 cites W2024539827 @default.
- W1844404727 cites W2027252614 @default.
- W1844404727 cites W2039068674 @default.
- W1844404727 cites W2042297601 @default.
- W1844404727 cites W2049681765 @default.
- W1844404727 cites W2061079662 @default.
- W1844404727 cites W2061830659 @default.
- W1844404727 cites W2066705128 @default.
- W1844404727 cites W2073067308 @default.
- W1844404727 cites W2075299115 @default.
- W1844404727 cites W2085162754 @default.
- W1844404727 cites W2087021152 @default.
- W1844404727 cites W2106146278 @default.
- W1844404727 cites W2110044203 @default.
- W1844404727 cites W2113186567 @default.
- W1844404727 cites W2115022388 @default.
- W1844404727 cites W2122811925 @default.
- W1844404727 cites W2129264974 @default.
- W1844404727 cites W2134223549 @default.
- W1844404727 cites W2139126378 @default.
- W1844404727 cites W2139312273 @default.
- W1844404727 cites W2149069009 @default.
- W1844404727 cites W2153206702 @default.
- W1844404727 cites W2155281806 @default.
- W1844404727 cites W2159130820 @default.
- W1844404727 cites W2484929788 @default.
- W1844404727 doi "https://doi.org/10.1002/bit.20058" @default.
- W1844404727 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/15112297" @default.
- W1844404727 hasPublicationYear "2004" @default.
- W1844404727 type Work @default.
- W1844404727 sameAs 1844404727 @default.
- W1844404727 citedByCount "30" @default.
- W1844404727 countsByYear W18444047272014 @default.
- W1844404727 countsByYear W18444047272016 @default.
- W1844404727 countsByYear W18444047272018 @default.
- W1844404727 countsByYear W18444047272019 @default.
- W1844404727 countsByYear W18444047272020 @default.
- W1844404727 countsByYear W18444047272021 @default.
- W1844404727 countsByYear W18444047272023 @default.
- W1844404727 crossrefType "journal-article" @default.
- W1844404727 hasAuthorship W1844404727A5026012656 @default.
- W1844404727 hasAuthorship W1844404727A5028407513 @default.
- W1844404727 hasAuthorship W1844404727A5072560200 @default.
- W1844404727 hasConcept C107872376 @default.
- W1844404727 hasConcept C108970007 @default.
- W1844404727 hasConcept C113196181 @default.
- W1844404727 hasConcept C115540264 @default.
- W1844404727 hasConcept C171250308 @default.
- W1844404727 hasConcept C178790620 @default.
- W1844404727 hasConcept C185592680 @default.
- W1844404727 hasConcept C18903297 @default.
- W1844404727 hasConcept C192562407 @default.
- W1844404727 hasConcept C2781345722 @default.
- W1844404727 hasConcept C41008148 @default.
- W1844404727 hasConcept C43617362 @default.
- W1844404727 hasConcept C4679612 @default.
- W1844404727 hasConcept C51038369 @default.
- W1844404727 hasConcept C540031477 @default.
- W1844404727 hasConcept C76155785 @default.
- W1844404727 hasConcept C86803240 @default.
- W1844404727 hasConceptScore W1844404727C107872376 @default.
- W1844404727 hasConceptScore W1844404727C108970007 @default.
- W1844404727 hasConceptScore W1844404727C113196181 @default.
- W1844404727 hasConceptScore W1844404727C115540264 @default.
- W1844404727 hasConceptScore W1844404727C171250308 @default.
- W1844404727 hasConceptScore W1844404727C178790620 @default.
- W1844404727 hasConceptScore W1844404727C185592680 @default.
- W1844404727 hasConceptScore W1844404727C18903297 @default.
- W1844404727 hasConceptScore W1844404727C192562407 @default.
- W1844404727 hasConceptScore W1844404727C2781345722 @default.
- W1844404727 hasConceptScore W1844404727C41008148 @default.
- W1844404727 hasConceptScore W1844404727C43617362 @default.
- W1844404727 hasConceptScore W1844404727C4679612 @default.
- W1844404727 hasConceptScore W1844404727C51038369 @default.
- W1844404727 hasConceptScore W1844404727C540031477 @default.
- W1844404727 hasConceptScore W1844404727C76155785 @default.
- W1844404727 hasConceptScore W1844404727C86803240 @default.
- W1844404727 hasIssue "4" @default.