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231224s2013 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2013.324
|2 doi
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|a pubmed24n0769.xml
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|a (NLM)24037147
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Ginige, Maneesha P
|e verfasserin
|4 aut
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|a Biological phosphorus and nitrogen removal in sequencing batch reactors
|b effects of cycle length, dissolved oxygen concentration and influent particulate matter
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|c 2013
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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 14.01.2014
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|a Date Revised 16.09.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a Removal of phosphorus (P) and nitrogen (N) from municipal wastewaters is required to mitigate eutrophication of receiving water bodies. While most treatment plants achieve good N removal using influent carbon (C), the use of influent C to facilitate enhanced biological phosphorus removal (EBPR) is poorly explored. A number of operational parameters can facilitate optimum use of influent C and this study investigated the effects of cycle length, dissolved oxygen (DO) concentration during aerobic period and influent solids on biological P and N removal in sequencing batch reactors (SRBs) using municipal wastewaters. Increasing cycle length from 3 to 6 h increased P removal efficiency, which was attributed to larger portion of N being removed via nitrite pathway and more biodegradable organic C becoming available for EBPR. Further increasing cycle length from 6 to 8 h decreased P removal efficiencies as the demand for biodegradable organic C for denitrification increased as a result of complete nitrification. Decreasing DO concentration in the aerobic period from 2 to 0.8 mg L(-1) increased P removal efficiency but decreased nitrification rates possibly due to oxygen limitation. Further, sedimented wastewater was proved to be a better influent stream than non-sedimented wastewater possibility due to the detrimental effect of particulate matter on biological nutrient removal
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Particulate Matter
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a Phosphorus
|2 NLM
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|a 27YLU75U4W
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Oxygen
|2 NLM
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|a S88TT14065
|2 NLM
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|a Kayaalp, Ahmet S
|e verfasserin
|4 aut
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|a Cheng, Ka Yu
|e verfasserin
|4 aut
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|a Wylie, Jason
|e verfasserin
|4 aut
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|a Kaksonen, Anna H
|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 68(2013), 5 vom: 15., Seite 982-90
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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|g volume:68
|g year:2013
|g number:5
|g day:15
|g pages:982-90
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|u http://dx.doi.org/10.2166/wst.2013.324
|3 Volltext
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