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231225s2017 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2017.517
|2 doi
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|a pubmed25n0929.xml
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|a (DE-627)NLM279007302
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|a (NLM)29236025
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Mi, Weixing
|e verfasserin
|4 aut
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|a Treatment performance, nitrous oxide production and microbial community under low-ammonium wastewater in a CANON process
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|c 2017
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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
|b cr
|2 rdacarrier
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|a Date Completed 03.05.2018
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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 To investigate the characteristics of anaerobic ammonia oxidation for treating low-ammonium wastewater, a continuous-flow completely autotrophic nitrogen removal over nitrite (CANON) biofilm reactor was studied. At a temperature of 32 ± 1 °C and a pH between 7.5 and 8.2, two operational experiments were performed: the first one fixed the hydraulic retention time (HRT) at 10 h and gradually reduced the influent ammonium concentrations from 210 to 50 mg L-1; the second one fixed the influent ammonium concentration at 30 mg L-1 and gradually decreased the HRT from 10 to 3 h. The results revealed that the total nitrogen removal efficiency exceeded 80%, with a corresponding total nitrogen removal rate of 0.26 ± 0.01 kg N m-3 d-1 at the final low ammonium concentration of 30 mg L-1. Small amounts of nitrous oxide (N2O) up to 0.015 ± 0.004 kg m-3 d-1 at the ammonium concentration of 210 mg L-1 were produced in the CANON process and decreased with the decrease in the influent ammonium loads. High-throughput pyrosequencing analysis indicated that the dominant functional bacteria 'Candidatus Kuenenia' under high influent ammonium levels were gradually succeeded by Armatimonadetes_gp5 under low influent ammonium levels
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|a Journal Article
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|a Ammonium Compounds
|2 NLM
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|a Nitrites
|2 NLM
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|a Waste Water
|2 NLM
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|a Nitrous Oxide
|2 NLM
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| 650 |
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|a K50XQU1029
|2 NLM
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| 650 |
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|a Nitrogen
|2 NLM
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| 650 |
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|a N762921K75
|2 NLM
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1 |
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|a Zhao, Jianqiang
|e verfasserin
|4 aut
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|a Ding, Xiaoqian
|e verfasserin
|4 aut
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|a Ge, Guanghuan
|e verfasserin
|4 aut
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| 700 |
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|a Zhao, Rixiang
|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 76(2017), 11-12 vom: 09. Dez., Seite 3468-3477
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnns
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| 773 |
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|g volume:76
|g year:2017
|g number:11-12
|g day:09
|g month:12
|g pages:3468-3477
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|u http://dx.doi.org/10.2166/wst.2017.517
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