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240602s2024 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2024.156
|2 doi
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|e rakwb
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|a eng
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|a Min, Zhang
|e verfasserin
|4 aut
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|a A combination of microbial electrolysis cells and bioaugmentation can effectively treat synthetic wastewater containing polycyclic aromatic hydrocarbon
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|c 2024
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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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|a Date Completed 01.06.2024
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|a Date Revised 01.06.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2024 The Authors This is an Open Access article distributed under the terms of the Creative Commons Attribution Licence (CC BY 4.0), which permits copying, adaptation and redistribution, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/).
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|a The anaerobic biodegradation of polycyclic aromatic hydrocarbons (PAHs) is challenging due to its toxic effect on the microbes. Microbial electrolysis cells (MECs), with their excellent characteristics of anodic and cathodic biofilms, can be a viable way to enhance the biodegradation of PAHs. This work assessed different cathode materials (carbon brush and nickel foam) combined with bioaugmentation on typical PAHs-naphthalene biodegradation and analyzed the inhibition amendment mechanism of microbial biofilms in MECs. Compared with the control, the degradation efficiency of naphthalene with the nickel foam cathode supplied with bioaugmentation dosage realized a maximum removal rate of 94.5 ± 3.2%. The highest daily recovered methane yield (227 ± 2 mL/gCOD) was also found in the nickel foam cathode supplied with bioaugmentation. Moreover, the microbial analysis demonstrated the significant switch of predominant PAH-degrading microorganisms from Pseudomonas in control to norank_f_Prolixibacteraceae in MECs. Furthermore, hydrogentrophic methanogenesis prevailed in MEC reactors, which is responsible for methane production. This study proved that MEC combined with bioaugmentation could effectively alleviate the inhibition of PAH, with the nickel foam cathode obtaining the fastest recovery rate in terms of methane yield
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|a Journal Article
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|a methane
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|a microbial electrolysis cell
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4 |
|a naphthalene
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|a nickel foam cathode
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|a Polycyclic Aromatic Hydrocarbons
|2 NLM
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|a Wastewater
|2 NLM
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|a Water Pollutants, Chemical
|2 NLM
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|a Rui, Tang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Li
|e verfasserin
|4 aut
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| 773 |
0 |
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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 89(2024), 10 vom: 01. Mai, Seite 2716-2731
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnas
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| 773 |
1 |
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|g volume:89
|g year:2024
|g number:10
|g day:01
|g month:05
|g pages:2716-2731
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|u http://dx.doi.org/10.2166/wst.2024.156
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