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NLM379193213 |
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DE-627 |
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20241022232411.0 |
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241022s2024 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2024.2415723
|2 doi
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|a pubmed24n1576.xml
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|a (DE-627)NLM379193213
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|a (NLM)39432466
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Tao, Jianqiang
|e verfasserin
|4 aut
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|a Innovative strategy for the treatment of oily wastewater by in-situ synthesis of nitrogen-doped biochar supported FeS for activation of peroxymonosulfate
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|c 2024
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|a Text
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|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 Revised 21.10.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Disposing of oily wastewater poses a significant challenge in treating oilfield-produced wastewater treatment. This study developed a FeSNC-9/PMS system for the effective degradation of total petroleum hydrocarbons (TPHs) in oily wastewater, while increasing the value of excess sludge, thus achieving the dual purpose of waste treatment. This work involved the in-situ preparation of a porous nitrogen-doped biochar-supported iron sulphide catalyst material using surplus sludge from SBR. Compared to undoped FeS (NC-9), FeSNC-9 exhibited excellent pore structure and abundant functional groups. Fe-Nx served as an effective connecting site between FeS species and the graphite network of biochar. The FeSNC-9/PMS system significantly degraded 74.21% of TPHs within 300 min. The FeSNC-9/PMS system demonstrated remarkable TPHs degradation efficiency across a wide temperature range and under both weak acidity and near-neutral conditions The dominant reactive oxygen species were identified as SO4•- and •OH, with O2•- and 1O2 also confirmed as active species. Gas chromatography semi-quantitative analysis showed that the long-chain alkanes of C20-C30 in total petroleum hydrocarbons were significantly degraded into short-chain alkanes or completely mineralized. This work provides new insights for the low-cost and high-efficiency treatment of TPHs in oilfield-produced water, and delves into the activation mechanism of PMS and the degradation pathways of TPHs
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|a Journal Article
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|a Fe(II) regeneration
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|a FeSNC-9
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|a Total petroleum hydrocarbons
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|a peroxymonosulfate activation
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|a sulphate radical
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|a Yang, Yuanliang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g (2024) vom: 21. Okt., Seite 1-15
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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|g year:2024
|g day:21
|g month:10
|g pages:1-15
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|u http://dx.doi.org/10.1080/09593330.2024.2415723
|3 Volltext
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