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231224s2014 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2013.814
|2 doi
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|a pubmed25n0787.xml
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|a (DE-627)NLM236331582
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|a (NLM)24622543
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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 Yang, Y
|e verfasserin
|4 aut
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|a New urban wastewater treatment with autotrophic membrane bioreactor at low chemical oxygen demand/N substrate ratio
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|c 2014
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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 30.05.2014
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|a Date Revised 13.03.2014
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|a published: Print
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|a Citation Status MEDLINE
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|a The potential for total nitrogen removal from municipal wastewater has been evaluated in an autotrophic membrane bioreactor running with a low chemical oxygen demand (COD)/N ratio to simulate its combination with an upstream physicochemical process that retains a large proportion of organic matter. The tests were conducted in a laboratory scale submerged membrane bioreactor loaded with a synthetic influent. Nitrogen loading rate was 0.16 kgN-NH4+.m(-3).d(-1) and sodium acetate was added as a carbon source. Results have shown that nitrogen elimination can reach 85% for a COD/N ratio of 5, with COD removal exceeding 97%. However, a COD/N ratio of 3.5 was found to be the limiting factor for successfully reaching the overall target value of 10 mgN.L(-1) in the effluent. Nevertheless, low COD/N ratios make it possible to work with low total suspended solid concentrations in the bioreactor, which greatly facilitates membrane fouling control by a simple aeration and backwashing strategy
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Membranes, Artificial
|2 NLM
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|a Nitrogen
|2 NLM
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|a N762921K75
|2 NLM
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|a Lesage, G
|e verfasserin
|4 aut
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|a Barret, M
|e verfasserin
|4 aut
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|a Bernet, N
|e verfasserin
|4 aut
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|a Grasmick, A
|e verfasserin
|4 aut
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|a Hamelin, J
|e verfasserin
|4 aut
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|a Heran, M
|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 69(2014), 5 vom: 01., Seite 960-5
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:69
|g year:2014
|g number:5
|g day:01
|g pages:960-5
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|u http://dx.doi.org/10.2166/wst.2013.814
|3 Volltext
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