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231226s2022 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2022.135
|2 doi
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|a pubmed24n1138.xml
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|a (NLM)35638792
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Stricker, Max
|e verfasserin
|4 aut
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|a Design-oriented evaluation of the hydrodynamics in a full-scale combined filter-lamella separator for urban stormwater treatment
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.06.2022
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|a Date Revised 02.06.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a The development of compact treatment devices with high removal efficiencies and low space requirements is a key objective of urban stormwater treatment. Thus, many devices utilize a combination of sedimentation and upward flow filtration in a single system. This study, for the first time, evaluates the flow field inside a combined filter-lamella separator via computational fluid dynamics. Herein, three objectives are investigated: (i) the flow field for different structural configurations, (ii) the distribution of particulate matter along the filter bed and (iii) the dynamic clogging in discrete filter zones, which is addressed by a clogging model derived from literature data. The results indicate that a direct combination of a filtration stage with a lamella separator promotes a uniform flow distribution. The distribution of particulate matter along the filter bed varies with configuration and particle size. Clogging, induced by particles in the spectrum <63 μm, creates gradients of hydraulic conductivity along the filter bed. After treating about half of Germany's annual runoff-efficient precipitation at a rainfall intensity of 5 L/(s·ha), the filtration rates increase in the front of the filter bed by +10%. Thus, long-term operating behavior is sensitive to efficient filter utilization in compact treatment devices
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|a Journal Article
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|a Particulate Matter
|2 NLM
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|a Littfinski, Tobias
|e verfasserin
|4 aut
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|a Heinz, Eva
|e verfasserin
|4 aut
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|a Pecher, Klaus Hans
|e verfasserin
|4 aut
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|a Lübken, Manfred
|e verfasserin
|4 aut
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|a Grüning, Helmut
|e verfasserin
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|a Wichern, Marc
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 85(2022), 10 vom: 29. Mai, Seite 2854-2868
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:85
|g year:2022
|g number:10
|g day:29
|g month:05
|g pages:2854-2868
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|u http://dx.doi.org/10.2166/wst.2022.135
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|d 85
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