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|a 10.1002/wer.10852
|2 doi
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|a pubmed24n1183.xml
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|a (DE-627)NLM354925040
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|a (NLM)36987547
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|a DE-627
|b ger
|c DE-627
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|a eng
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| 100 |
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|a Coats, Erik R
|e verfasserin
|4 aut
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|a Interrogating the performance and microbial ecology of an enhanced biological phosphorus removal/post-anoxic denitrification process at bench and pilot scales
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 12.04.2023
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|a Date Revised 12.04.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2023 Water Environment Federation.
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|a Research focused on interrogating post-anoxic enhanced biological phosphorus removal (EBPR) at bench and pilot scales. Average bench-scale effluent ranged from 0.33 to 1.4 mgP/L, 0.35 to 3.7 mgNH3 -N/L, and 1.1 to 3.9 mgNOx -N/L. Comparatively, the pilot achieved effluent (50th percentile/average) of 0.13/0.2 mgP/L, 9.7/8.2 mgNH3 -N/L, and 0.38/3.3 mgNOx -N/L under dynamic influent and environmental conditions. For EBPR process monitoring, P:C ratio data indicated that 0.2-0.4 molP/molC will result in stable EBPR; relatedly, a target design influent volatile fatty acid (VFA):P ratio would exceed 15 mgCOD/mgP. Post-anoxic EBPR was enriched for Nitrobacter spp. at 1.70%-20.27%, with Parcubacteria also dominating; the former is putatively associated with nitritation and the latter is a putative fermenting heterotrophic organism. Post-anoxic specific denitrification rates (SDNRs) (20°C) ranged from 0.70 to 3.10 mgN/gVSS/h; there was a strong correlation (R2 = 0.94) between the SDNR and %Parcubacteria for systems operated at a 20-day solids residence time (SRT). These results suggest that carbon substrate potentially generated by this putative fermenter may enhance post-anoxic EBPR. PRACTITIONER POINTS: Post-anoxic EBPR can achieve effluent of <0.2 mgP/L and <12 mgN/L. The P:C and VFA:P ratios can be predictive for EBPR process monitoring. Post-anoxic EBPR was enriched for Nitrobacter spp. over Nitrospira spp. and also for Parcubacteria, which is a putative fermenting heterotrophic organism. Post-anoxic specific denitrification rates (20°C) ranged from 0.70 to 3.10 mgN/gVSS/h. BLASTn analysis of 16S rDNA PAO primer set was shown to be improved to 93.8% for Ca. Accumulibacter phosphatis and 73.2%-94.0% for all potential PAOs
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|a Journal Article
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|a EBPR
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|a Parcubacteria
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|a post-anoxic denitrification
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|a specific denitrification rate
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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|a Carbon
|2 NLM
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|a 7440-44-0
|2 NLM
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|a Fatty Acids, Volatile
|2 NLM
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|a Sewage
|2 NLM
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| 700 |
1 |
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|a Appel, Felicity J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guho, Nick
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Brinkman, Cynthia K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mellin, Jason
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 95(2023), 4 vom: 28. Jan., Seite e10852
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:95
|g year:2023
|g number:4
|g day:28
|g month:01
|g pages:e10852
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|u http://dx.doi.org/10.1002/wer.10852
|3 Volltext
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