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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/wer.1005
|2 doi
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|a pubmed24n0978.xml
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|a (DE-627)NLM29361248X
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|a (NLM)30735299
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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 Badia, Ahmed
|e verfasserin
|4 aut
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|a Effect of COD/N ratio on denitrification from nitrite
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|c 2019
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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 24.06.2019
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|a Date Revised 07.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © 2018 Water Environment Federation.
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|a The objective of this study was to investigate dynamic specific denitrification rates (SDNRs) from nitrite at various chemical oxygen demand (COD)/nitrogen (N) ratios using municipal wastewater (MWW). A sequencing batch reactor (SBR) continuously fed with primary effluent and nitrite solution was operated at hydraulic retention time of 8.4 hr and solids retention time of 26-30 days for 3 months. Influent MWW characteristics varied significantly during the study, that is, 200-810 mgCOD/L and 6-80 mgN/L. The SDNRs from the SBR were compared with those determined in four batch reactors using acetate. The SDNR was directly related to COD/N until a maximum SDNR (mgNO2 -N/mgVSS/day) of 0.07 for MWW and 0.4 for acetate occurred at COD/N ratios of 6 and 13, respectively; beyond this COD/N ratio, SDNR decreased. The biomass yield coefficients (mgVSS/mgCOD) were 0.33 for MWW and 0.51 for acetate. The relationships of SDNR with COD/N and F/M ratios were developed. PRACTITIONER POINTS: The optimum carbon dose for denitrification should be determined using acclimatized biomass. Each carbon source should only be dosed at an optimum that maximizes denitrification
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|a Journal Article
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|a COD/N ratio
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|a external carbon source
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|a municipal wastewater
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|a nitrite
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|a predenitrification
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|a specific denitrification rate
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|a Nitrites
|2 NLM
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|a Waste Water
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Kim, Mingu
|e verfasserin
|4 aut
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|a Nakhla, George
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ray, Madhumita B
|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 91(2019), 2 vom: 01. Feb., Seite 119-131
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnns
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| 773 |
1 |
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|g volume:91
|g year:2019
|g number:2
|g day:01
|g month:02
|g pages:119-131
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|u http://dx.doi.org/10.1002/wer.1005
|3 Volltext
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|d 91
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