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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1349
|2 doi
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|a pubmed24n1031.xml
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|a (DE-627)NLM309523818
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|a (NLM)32368842
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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 Pasini, Federico
|e verfasserin
|4 aut
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|a Oxygen transfer and plant-wide energy assessment of primary screening in WRRFs
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|c 2021
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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 11.05.2021
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|a Date Revised 07.12.2022
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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 Primary screening is gaining interest as a method to achieve removal performances comparable to primary clarification while reducing the footprint and increasing operational elasticity. Aeration efficiency indicators in a pilot sequential batch reactor (SBR) and a full scale water resource recovery facility (WRRF) were investigated after the implementation of rotating belt filters/screens (RBF). To compare the impact between screened (350 μm) and nonscreened primary influent, two identical treatment lines were monitored using off-gas and respirometric measurements. The study provides the first result on improved oxygen transfer efficiency due to primary screening. Consistent aeration efficiency improvements of 27% and 20% between screened and nonscreened were obtained at pilot and full scale, respectively. Changes in aeration efficiency and carbon redirection were integrated into a set of models to investigate the primary screening impact on the WRRF energy balance. While the plant-wide assessment for different scenarios improved the energy balance up to 15%, a detailed comparative analysis between various treatment schemes gained insight into the advantages and limitations of the energetic sustainability of primary screening. PRACTITIONER POINTS: Aeration efficiency improved 27% at pilot scale Aeration efficiency improved 20% at full scale. Use of primary screening can improve the energy balance up to 15 Assessment of advantages and limitations of primary screening
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|a Journal Article
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|a activated sludge
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|a aeration
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|a primary screening energy
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|a wastewater
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|a Sewage
|2 NLM
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|a Waste Water
|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 Oxygen
|2 NLM
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|a S88TT14065
|2 NLM
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| 700 |
1 |
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|a Garrido-Baserba, Manel
|e verfasserin
|4 aut
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|a Ahmed, Ahmed
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nakhla, George
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Santoro, Domenico
|e verfasserin
|4 aut
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| 700 |
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|a Rosso, Diego
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 93(2021), 5 vom: 03. Mai, Seite 677-692
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:93
|g year:2021
|g number:5
|g day:03
|g month:05
|g pages:677-692
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|u http://dx.doi.org/10.1002/wer.1349
|3 Volltext
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