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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1304
|2 doi
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|a pubmed24n1020.xml
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|a (DE-627)NLM30607981X
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|a (NLM)32012385
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Jimenez, Jose
|e verfasserin
|4 aut
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| 245 |
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|a Nitrite-shunt and biological phosphorus removal at low dissolved oxygen in a full-scale high-rate system at warm temperatures
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|c 2020
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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
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|2 rdacarrier
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|a Date Completed 27.07.2020
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|a Date Revised 27.07.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2020 Water Environment Federation.
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|a This study presents results from the City of St. Petersburg's (Florida) Southwest Water Reclamation Facility. This high-rate BNR plant (SRT ~ 5 days; HRT < 8 hr) achieves combined bioP and shortcut simultaneous nitrification and denitrification (SND) via nitrite in a simple BNR configuration-an anaerobic-aerobic (A/O) process without mixed liquor recycle and a 25% unaerated fraction. N removal to low effluent and nitrate and nitrite ( NO 3 - + NO 2 - ) concentrations occurs mainly via SND by operating the aerated zone at low DO, but still achieving near-complete ammonium ( NH 4 + ) removal. Despite the low DO operation, very good bioP performance is achieved. Full-scale performance data and detailed bench-scale testing were conducted to assess the nitrogen and phosphorus removal at low DO conditions. Full-scale results showed that the plant achieves effluent total inorganic nitrogen (TIN) and total phosphorus (TP) concentrations of approximately 2.0 mgN/L and 0.5 mgP/L, respectively, at an average influent C:N ratio of 7:1 mgCOD:mgN. PRACTITIONER POINTS: Simple anaerobic-aerobic (A/O) process demonstrated combined N and P removal Ammonia oxidation was not hampered by low DO (<0.5 mg/L) operation Low DO (<0.5 mg/L) operation sustained SND via nitrite pathway in a high-rate process (HRT < 6 hr) P uptake was demonstrated at low DO which counters to the widely held understanding that high DO (>1.5 mg/L) is necessary Heterotrophic consumption of nitrite at low DO was the key to the out-selection of nitrite-oxidizing bacteria
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|a Journal Article
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|a Nitrogen removal
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|a biological phosphorus removal
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|a low DO operation
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|a nitrite-shunt
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|a shortcut nitrogen removal
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|a simultaneous nitrification and denitrification
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|a Nitrites
|2 NLM
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| 650 |
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|a Phosphorus
|2 NLM
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| 650 |
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|a 27YLU75U4W
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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| 650 |
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|a Oxygen
|2 NLM
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| 650 |
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|a S88TT14065
|2 NLM
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| 700 |
1 |
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|a Wise, George
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Regmi, Pusker
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Burger, Gillian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Conidi, Daniela
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Du, Weiwei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dold, Peter
|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 92(2020), 8 vom: 21. Aug., Seite 1111-1122
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
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|g volume:92
|g year:2020
|g number:8
|g day:21
|g month:08
|g pages:1111-1122
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|u http://dx.doi.org/10.1002/wer.1304
|3 Volltext
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