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231225s2019 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2018.459
|2 doi
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|a pubmed24n0988.xml
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|a (NLM)31025977
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Kamei, Tatsuru
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Coupled anaerobic ammonium oxidation and hydrogenotrophic denitrification for simultaneous NH4-N and NO3-N removal
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|c 2019
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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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|a Date Completed 12.06.2019
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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 Nitrate removal during anaerobic ammonium oxidation (anammox) treatment is a concern for optimization of the anammox process. This study demonstrated the applicability and long-term stability of the coupled anammox and hydrogenotrophic denitrification (CAHD) process as an alternative method for nitrate removal. Laboratory-scale fixed bed anammox reactors (FBR) supplied with H2 to support denitrification were operated under two types of synthetic water. The FBRs showed simultaneous NH4-N and NO3-N removal, indicating that the CAHD process can support NO3-N removal during the anammox process. Intermittent H2 supply (e.g. 5 mL/min for a 1-L reactor, 14/6-min on/off cycle) helped maintain the CAHD process without deteriorating its performance under long-term operation and resulted in a nitrogen removal rate of 0.21 kg-N/m3/d and ammonium, nitrate, and dissolved inorganic nitrogen removal efficiencies of 73.4%, 80.4%, and 77%, respectively. The microbial community structure related to the CAHD process was not influenced by changes in influent water quality, and included the anammox bacteria 'Candidatus Jettenia' and a Sulfuritalea hydrogenivorans-like species as the dominant bacteria even after long-term reactor operation, suggesting that these bacteria are key to the CAHD process. These results indicate that the CAHD process is a promising method for enhancing the efficiency of anammox process
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|a Journal Article
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|a Ammonium Compounds
|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 Eamrat, Rawintra
|e verfasserin
|4 aut
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|a Shinoda, Kenta
|e verfasserin
|4 aut
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|a Tanaka, Yasuhiro
|e verfasserin
|4 aut
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| 700 |
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|a Kazama, Futaba
|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 79(2019), 5 vom: 26. März, Seite 975-984
|w (DE-627)NLM098149431
|x 0273-1223
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|g volume:79
|g year:2019
|g number:5
|g day:26
|g month:03
|g pages:975-984
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|u http://dx.doi.org/10.2166/wst.2018.459
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