A comparative study on phenazone degradation by sulfate radicals based processes

Han Gong; Wei Chu; Lu Gan; He Gong; Jingjun Lin; Qinxing Wang; Wing Yiu Lai; Lijie Xu

doi:10.1016/j.envres.2020.110054

A comparative study on phenazone degradation by sulfate radicals based processes

Han Gong, Wei Chu, Lu Gan, He Gong, Jingjun Lin, Qinxing Wang, Wing Yiu Lai, Lijie Xu

Research output: Journal article publication › Journal article › Academic research › peer-review

5 Citations (Scopus)

Abstract

In this paper, a comparative study on removal of the emerging pollutant phenazone (PNZ) by two treatment processes UVA/Fe(II)/persulfate (PS) and UVA/Fe(II)/peroxymonosulfate (PMS) was conducted. The two processes showed high efficiency in PNZ degradation, followed by a reasonable mineralization. The treatment system with PMS was found to be more efficient for PNZ degradation than that with PS due to the larger amounts of radicals generated. While the treatment process UVA/Fe(II)/PS showed higher ΔTOC/ΔSMX (TOC removal per unit of PNZ decay) than UVA/Fe(II)/PMS process. The sulfate and hydroxyl radicals played dominant roles in PNZ degradation in the UVA/Fe(II)/PS and UVA/Fe(II)/PMS process, respectively. Six and seven intermediates during PNZ degradation by UVA/Fe(II)/PS and UVA/Fe(II)/PMS process were detected, respectively. Among the detected intermediates, six of them are found for the first time. It takes shorter time for toxicity elimination by UVA/Fe(II)/PS process than UVA/Fe(II)/PMS, possibly due to the lower Kow values of hydroxylated products. The results demonstrate that UVA/Fe(II)/PMS process is more efficient in PNZ degradation, while UVA/Fe(II)/PS is more efficient in detoxification of PNZ. The two sulfate radicals based processes have good potentials in degradation, mineralization and detoxification of the emerging contaminants such as PNZ.

Original language	English
Article number	110054
Journal	Environmental Research
Volume	191
DOIs	https://doi.org/10.1016/j.envres.2020.110054
Publication status	Published - Dec 2020

Keywords

Phenazone
Photodegradation
Sulfate radicals
Toxicity
Treatment

ASJC Scopus subject areas

Biochemistry
General Environmental Science

More information

10.1016/j.envres.2020.110054

Cite this

@article{929441abd57449279f3bd420f7882319,

title = "A comparative study on phenazone degradation by sulfate radicals based processes",

abstract = "In this paper, a comparative study on removal of the emerging pollutant phenazone (PNZ) by two treatment processes UVA/Fe(II)/persulfate (PS) and UVA/Fe(II)/peroxymonosulfate (PMS) was conducted. The two processes showed high efficiency in PNZ degradation, followed by a reasonable mineralization. The treatment system with PMS was found to be more efficient for PNZ degradation than that with PS due to the larger amounts of radicals generated. While the treatment process UVA/Fe(II)/PS showed higher ΔTOC/ΔSMX (TOC removal per unit of PNZ decay) than UVA/Fe(II)/PMS process. The sulfate and hydroxyl radicals played dominant roles in PNZ degradation in the UVA/Fe(II)/PS and UVA/Fe(II)/PMS process, respectively. Six and seven intermediates during PNZ degradation by UVA/Fe(II)/PS and UVA/Fe(II)/PMS process were detected, respectively. Among the detected intermediates, six of them are found for the first time. It takes shorter time for toxicity elimination by UVA/Fe(II)/PS process than UVA/Fe(II)/PMS, possibly due to the lower Kow values of hydroxylated products. The results demonstrate that UVA/Fe(II)/PMS process is more efficient in PNZ degradation, while UVA/Fe(II)/PS is more efficient in detoxification of PNZ. The two sulfate radicals based processes have good potentials in degradation, mineralization and detoxification of the emerging contaminants such as PNZ.",

keywords = "Phenazone, Photodegradation, Sulfate radicals, Toxicity, Treatment",

author = "Han Gong and Wei Chu and Lu Gan and He Gong and Jingjun Lin and Qinxing Wang and Lai, {Wing Yiu} and Lijie Xu",

note = "Funding Information: Funding: This work was supported by the National Natural Science Foundation of China [grant numbers 41807476 , 51708297 ]; the Qing Lan Project of Jiangsu Province ( 2020 ); China Postdoctoral Science Foundation [grant number 2019M661856 ]; and Hong Kong Polytechnic University [grant number 1-ZVH6 ]. Publisher Copyright: {\textcopyright} 2020 Elsevier Inc. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = dec,

doi = "10.1016/j.envres.2020.110054",

language = "English",

volume = "191",

journal = "Environmental Research",

issn = "0013-9351",

publisher = "Academic Press Inc.",

}

TY - JOUR

T1 - A comparative study on phenazone degradation by sulfate radicals based processes

AU - Gong, Han

AU - Chu, Wei

AU - Gan, Lu

AU - Gong, He

AU - Lin, Jingjun

AU - Wang, Qinxing

AU - Lai, Wing Yiu

AU - Xu, Lijie

N1 - Funding Information: Funding: This work was supported by the National Natural Science Foundation of China [grant numbers 41807476 , 51708297 ]; the Qing Lan Project of Jiangsu Province ( 2020 ); China Postdoctoral Science Foundation [grant number 2019M661856 ]; and Hong Kong Polytechnic University [grant number 1-ZVH6 ]. Publisher Copyright: © 2020 Elsevier Inc. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/12

Y1 - 2020/12

N2 - In this paper, a comparative study on removal of the emerging pollutant phenazone (PNZ) by two treatment processes UVA/Fe(II)/persulfate (PS) and UVA/Fe(II)/peroxymonosulfate (PMS) was conducted. The two processes showed high efficiency in PNZ degradation, followed by a reasonable mineralization. The treatment system with PMS was found to be more efficient for PNZ degradation than that with PS due to the larger amounts of radicals generated. While the treatment process UVA/Fe(II)/PS showed higher ΔTOC/ΔSMX (TOC removal per unit of PNZ decay) than UVA/Fe(II)/PMS process. The sulfate and hydroxyl radicals played dominant roles in PNZ degradation in the UVA/Fe(II)/PS and UVA/Fe(II)/PMS process, respectively. Six and seven intermediates during PNZ degradation by UVA/Fe(II)/PS and UVA/Fe(II)/PMS process were detected, respectively. Among the detected intermediates, six of them are found for the first time. It takes shorter time for toxicity elimination by UVA/Fe(II)/PS process than UVA/Fe(II)/PMS, possibly due to the lower Kow values of hydroxylated products. The results demonstrate that UVA/Fe(II)/PMS process is more efficient in PNZ degradation, while UVA/Fe(II)/PS is more efficient in detoxification of PNZ. The two sulfate radicals based processes have good potentials in degradation, mineralization and detoxification of the emerging contaminants such as PNZ.

AB - In this paper, a comparative study on removal of the emerging pollutant phenazone (PNZ) by two treatment processes UVA/Fe(II)/persulfate (PS) and UVA/Fe(II)/peroxymonosulfate (PMS) was conducted. The two processes showed high efficiency in PNZ degradation, followed by a reasonable mineralization. The treatment system with PMS was found to be more efficient for PNZ degradation than that with PS due to the larger amounts of radicals generated. While the treatment process UVA/Fe(II)/PS showed higher ΔTOC/ΔSMX (TOC removal per unit of PNZ decay) than UVA/Fe(II)/PMS process. The sulfate and hydroxyl radicals played dominant roles in PNZ degradation in the UVA/Fe(II)/PS and UVA/Fe(II)/PMS process, respectively. Six and seven intermediates during PNZ degradation by UVA/Fe(II)/PS and UVA/Fe(II)/PMS process were detected, respectively. Among the detected intermediates, six of them are found for the first time. It takes shorter time for toxicity elimination by UVA/Fe(II)/PS process than UVA/Fe(II)/PMS, possibly due to the lower Kow values of hydroxylated products. The results demonstrate that UVA/Fe(II)/PMS process is more efficient in PNZ degradation, while UVA/Fe(II)/PS is more efficient in detoxification of PNZ. The two sulfate radicals based processes have good potentials in degradation, mineralization and detoxification of the emerging contaminants such as PNZ.

KW - Phenazone

KW - Photodegradation

KW - Sulfate radicals

KW - Toxicity

KW - Treatment

UR - http://www.scopus.com/inward/record.url?scp=85089839264&partnerID=8YFLogxK

U2 - 10.1016/j.envres.2020.110054

DO - 10.1016/j.envres.2020.110054

M3 - Journal article

C2 - 32827520

AN - SCOPUS:85089839264

SN - 0013-9351

VL - 191

JO - Environmental Research

JF - Environmental Research

M1 - 110054

ER -

A comparative study on phenazone degradation by sulfate radicals based processes

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this