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231226s2023 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2023.361
|2 doi
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|a pubmed24n1231.xml
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|a (DE-627)NLM365867616
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|a (NLM)38096063
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|a DE-627
|b ger
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|e rakwb
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|a eng
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|a De Vleeschauwer, Flinn
|e verfasserin
|4 aut
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|a Full dynamic control of dairy wastewater treatment by aerobic granular sludge using electric conductivity and oxygen uptake rate
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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
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|2 rdacarrier
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|a Date Completed 16.12.2023
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|a Date Revised 16.12.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a The objective of the current study was to determine the applicability of a sensor-based dynamic control strategy for the treatment of real variable dairy wastewater by aerobic granular sludge (AGS) performing enhanced biological phosphorus removal (EBPR). Two parallel sequencing batch reactors (SBRs) were set up that used only an anaerobic feast/aerobic famine microbial selection strategy to successfully obtain sludge granulation. SBR-STA used a fixed cycle length, while the duration of the reaction steps in SBR-DYN was variable. The control strategy was based solely on (derived) signals from low-cost and common sensors. The profile of the electric conductivity during the anaerobic reaction step was related to the microbial release of phosphate (PO4-P) and the associated uptake of dissolved organic carbon (DOC) by polyphosphate-accumulating organisms (PAOs). Control of the aerobic reaction step was based on the oxygen uptake rate (OUR). This resulted in a dynamic reactor operation with significant efficiency gains, such as 32% shorter cycle times and 42% higher sludge loading rates without impairing the effluent quality. These results extend the existing potential of indirect control strategies to full biological nutrient removal processes, which may be of great assistance to the operators and designers of industrial installations
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|a Journal Article
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|a Sewage
|2 NLM
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| 650 |
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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|a Oxygen
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|a S88TT14065
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|a Dries, Jan
|e verfasserin
|4 aut
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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 88(2023), 11 vom: 14. Dez., Seite 2707-2718
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|x 0273-1223
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|g volume:88
|g year:2023
|g number:11
|g day:14
|g month:12
|g pages:2707-2718
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|u http://dx.doi.org/10.2166/wst.2023.361
|3 Volltext
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