Transformation of roxarsone during UV disinfection in the presence of ferric ions

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Transformation of roxarsone during UV disinfection in the presence of ferric ions. / Chen, Yiqun; Lin, Chuanjing; Zhou, Yiyi et al.

In: Chemosphere, Vol. 233, 01.10.2019, p. 431-439.

Research output: Contribution to journal › Article › peer-review

Harvard

Chen, Y, Lin, C, Zhou, Y, Long, L, Li, L, Tang, M, Liu, Z, Pozdnyakov, IP & Huang, LZ 2019, 'Transformation of roxarsone during UV disinfection in the presence of ferric ions', Chemosphere, vol. 233, pp. 431-439. https://doi.org/10.1016/j.chemosphere.2019.05.288

APA

Chen, Y., Lin, C., Zhou, Y., Long, L., Li, L., Tang, M., Liu, Z., Pozdnyakov, I. P., & Huang, L. Z. (2019). Transformation of roxarsone during UV disinfection in the presence of ferric ions. Chemosphere, 233, 431-439. https://doi.org/10.1016/j.chemosphere.2019.05.288

Vancouver

Chen Y, Lin C, Zhou Y, Long L, Li L, Tang M et al. Transformation of roxarsone during UV disinfection in the presence of ferric ions. Chemosphere. 2019 Oct 1;233:431-439. doi: 10.1016/j.chemosphere.2019.05.288

Author

Chen, Yiqun ; Lin, Chuanjing ; Zhou, Yiyi et al. / Transformation of roxarsone during UV disinfection in the presence of ferric ions. In: Chemosphere. 2019 ; Vol. 233. pp. 431-439.

BibTeX

@article{2b73916cef224d51920840500cff4690,

title = "Transformation of roxarsone during UV disinfection in the presence of ferric ions",

abstract = "The transformation of roxarsone (ROX) during UV disinfection with Fe(III) has been investigated. Fe(OH)2+, as the main Fe(III) species at pH = 3, produces HO[rad] under UV irradiation leading to the oxidation of ROX. Dissolved oxygen plays a very important role in the continuous conversion of generated Fe2+ to Fe3+, which ensures a Fe(III)-Fe(II) cycle in the system. The presence of Cl−/HCO3 −/NO3 − has little influence on the ROX transformation, whereas PO4 3− achieves an obvious inhibitory effect. The transformation of ROX leads to the formation of inorganic arsenic consisting of a much higher amount of As(V) than As(III). LC-MS analysis shows that phenol, o-nitrophenol and arsenic acid were the main transformation products. Both the radical scavenger experiment and electron spin resonance data confirm that the HO[rad] is responsible for ROX transformation. The toxic transformation products are found to have potential environmental risks for the natural environment, organisms and human beings.",

keywords = "Disinfection byproducts, Fe(III), Hydroxyl radical, Roxarsone, UV, BENZOIC-ACID, PHOTOCATALYTIC OXIDATION, AQUEOUS-SOLUTION, HYDROXYL RADICALS, REMOVAL, POULTRY LITTER, KINETICS, DEGRADATION, P-ARSANILIC ACID, WATER",

author = "Yiqun Chen and Chuanjing Lin and Yiyi Zhou and Li Long and Lili Li and Min Tang and Zizheng Liu and Pozdnyakov, {Ivan P.} and Huang, {Li Zhi}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = oct,

day = "1",

doi = "10.1016/j.chemosphere.2019.05.288",

language = "English",

volume = "233",

pages = "431--439",

journal = "Chemosphere",

issn = "0045-6535",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Transformation of roxarsone during UV disinfection in the presence of ferric ions

AU - Chen, Yiqun

AU - Lin, Chuanjing

AU - Zhou, Yiyi

AU - Long, Li

AU - Li, Lili

AU - Tang, Min

AU - Liu, Zizheng

AU - Pozdnyakov, Ivan P.

AU - Huang, Li Zhi

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The transformation of roxarsone (ROX) during UV disinfection with Fe(III) has been investigated. Fe(OH)2+, as the main Fe(III) species at pH = 3, produces HO[rad] under UV irradiation leading to the oxidation of ROX. Dissolved oxygen plays a very important role in the continuous conversion of generated Fe2+ to Fe3+, which ensures a Fe(III)-Fe(II) cycle in the system. The presence of Cl−/HCO3 −/NO3 − has little influence on the ROX transformation, whereas PO4 3− achieves an obvious inhibitory effect. The transformation of ROX leads to the formation of inorganic arsenic consisting of a much higher amount of As(V) than As(III). LC-MS analysis shows that phenol, o-nitrophenol and arsenic acid were the main transformation products. Both the radical scavenger experiment and electron spin resonance data confirm that the HO[rad] is responsible for ROX transformation. The toxic transformation products are found to have potential environmental risks for the natural environment, organisms and human beings.

AB - The transformation of roxarsone (ROX) during UV disinfection with Fe(III) has been investigated. Fe(OH)2+, as the main Fe(III) species at pH = 3, produces HO[rad] under UV irradiation leading to the oxidation of ROX. Dissolved oxygen plays a very important role in the continuous conversion of generated Fe2+ to Fe3+, which ensures a Fe(III)-Fe(II) cycle in the system. The presence of Cl−/HCO3 −/NO3 − has little influence on the ROX transformation, whereas PO4 3− achieves an obvious inhibitory effect. The transformation of ROX leads to the formation of inorganic arsenic consisting of a much higher amount of As(V) than As(III). LC-MS analysis shows that phenol, o-nitrophenol and arsenic acid were the main transformation products. Both the radical scavenger experiment and electron spin resonance data confirm that the HO[rad] is responsible for ROX transformation. The toxic transformation products are found to have potential environmental risks for the natural environment, organisms and human beings.

KW - Disinfection byproducts

KW - Fe(III)

KW - Hydroxyl radical

KW - Roxarsone

KW - UV

KW - BENZOIC-ACID

KW - PHOTOCATALYTIC OXIDATION

KW - AQUEOUS-SOLUTION

KW - HYDROXYL RADICALS

KW - REMOVAL

KW - POULTRY LITTER

KW - KINETICS

KW - DEGRADATION

KW - P-ARSANILIC ACID

KW - WATER

UR - http://www.scopus.com/inward/record.url?scp=85067286072&partnerID=8YFLogxK

U2 - 10.1016/j.chemosphere.2019.05.288

DO - 10.1016/j.chemosphere.2019.05.288

M3 - Article

C2 - 31176907

AN - SCOPUS:85067286072

VL - 233

SP - 431

EP - 439

JO - Chemosphere

JF - Chemosphere

SN - 0045-6535

ER -

ID: 20587914