Removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption - synergistic effect and degradation pathways

Hongyu Wang, Shujuan Wang, Jia-Qian Jiang, Ji Shu

Research output: Contribution to journalArticle

Abstract

Antibiotics have been frequently detected in the environment and watercourses which can inspire bacterial resistance and create super-bacteria; resulting in potential adverse impacts on the human health and environment. This work thus investigated the synergistic effect of a combined process (ferrate(VI) oxidation with montmorillonite adsorption), in comparison with either the oxidation or adsorption alone, for the removal of one of antibiotics, sulfadiazine (SDZ). The results manifested that all the three combined processes can promote the removal of SDZ but the simultaneous oxidation and adsorption can achieve the outperforming removal of SDZ (76.20%) in comparison with the oxidation alone (60%) or adsorption alone (10%) for the same given conditions, and the synergistic effect of combined oxidation/adsorption was confirmed. Additionally, the degradation of SDZ by ferrate(VI) fitted in the pseudo-second-order reaction characteristics, and the total reaction rate constant was derived as 2.97*10-4 L2 mg-2 min-1. The study also explored the possible pathways of the SDZ degradation by ferrate(VI) and potential oxidation product formation when an incompletemineralization of SDZ was observed. The oxidation product formed was proposed as a macromolecular-like compound containing RNO2 groups which were oxidized from the initial structure of SDZ containing R-NH2 groups.
Original languageEnglish
Article number103225
Number of pages9
JournalJournal of Environmental Chemical Engineering
Volume7
Issue number4
Early online date22 Jun 2019
DOIs
Publication statusPublished - Aug 2019

Fingerprint

Sulfadiazine
Bentonite
Clay minerals
montmorillonite
adsorption
Adsorption
oxidation
Degradation
Oxidation
degradation
Antibiotics
antibiotics
Anti-Bacterial Agents
ferrate ion
effect
removal
reaction rate
Reaction rates
Rate constants
Bacteria

Keywords

  • ferrate(VI)
  • degradation and its pathways
  • montmorillonite
  • oxidation
  • sorption
  • sulfadiazine (SDZ)

Cite this

@article{a19e3d00f8794f4280f57cba627483d8,
title = "Removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption - synergistic effect and degradation pathways",
abstract = "Antibiotics have been frequently detected in the environment and watercourses which can inspire bacterial resistance and create super-bacteria; resulting in potential adverse impacts on the human health and environment. This work thus investigated the synergistic effect of a combined process (ferrate(VI) oxidation with montmorillonite adsorption), in comparison with either the oxidation or adsorption alone, for the removal of one of antibiotics, sulfadiazine (SDZ). The results manifested that all the three combined processes can promote the removal of SDZ but the simultaneous oxidation and adsorption can achieve the outperforming removal of SDZ (76.20{\%}) in comparison with the oxidation alone (60{\%}) or adsorption alone (10{\%}) for the same given conditions, and the synergistic effect of combined oxidation/adsorption was confirmed. Additionally, the degradation of SDZ by ferrate(VI) fitted in the pseudo-second-order reaction characteristics, and the total reaction rate constant was derived as 2.97*10-4 L2 mg-2 min-1. The study also explored the possible pathways of the SDZ degradation by ferrate(VI) and potential oxidation product formation when an incompletemineralization of SDZ was observed. The oxidation product formed was proposed as a macromolecular-like compound containing RNO2 groups which were oxidized from the initial structure of SDZ containing R-NH2 groups.",
keywords = "ferrate(VI), degradation and its pathways, montmorillonite, oxidation, sorption, sulfadiazine (SDZ)",
author = "Hongyu Wang and Shujuan Wang and Jia-Qian Jiang and Ji Shu",
note = "Acceptance from webpage AAM: 12m embargo",
year = "2019",
month = "8",
doi = "10.1016/j.jece.2019.103225",
language = "English",
volume = "7",
journal = "Journal of Environmental Chemical Engineering",
issn = "2213-3437",
publisher = "Elsevier B.V.",
number = "4",

}

Removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption - synergistic effect and degradation pathways. / Wang, Hongyu ; Wang, Shujuan; Jiang, Jia-Qian; Shu, Ji.

In: Journal of Environmental Chemical Engineering, Vol. 7, No. 4, 103225, 08.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Removal of sulfadiazine by ferrate(VI) oxidation and montmorillonite adsorption - synergistic effect and degradation pathways

AU - Wang, Hongyu

AU - Wang, Shujuan

AU - Jiang, Jia-Qian

AU - Shu, Ji

N1 - Acceptance from webpage AAM: 12m embargo

PY - 2019/8

Y1 - 2019/8

N2 - Antibiotics have been frequently detected in the environment and watercourses which can inspire bacterial resistance and create super-bacteria; resulting in potential adverse impacts on the human health and environment. This work thus investigated the synergistic effect of a combined process (ferrate(VI) oxidation with montmorillonite adsorption), in comparison with either the oxidation or adsorption alone, for the removal of one of antibiotics, sulfadiazine (SDZ). The results manifested that all the three combined processes can promote the removal of SDZ but the simultaneous oxidation and adsorption can achieve the outperforming removal of SDZ (76.20%) in comparison with the oxidation alone (60%) or adsorption alone (10%) for the same given conditions, and the synergistic effect of combined oxidation/adsorption was confirmed. Additionally, the degradation of SDZ by ferrate(VI) fitted in the pseudo-second-order reaction characteristics, and the total reaction rate constant was derived as 2.97*10-4 L2 mg-2 min-1. The study also explored the possible pathways of the SDZ degradation by ferrate(VI) and potential oxidation product formation when an incompletemineralization of SDZ was observed. The oxidation product formed was proposed as a macromolecular-like compound containing RNO2 groups which were oxidized from the initial structure of SDZ containing R-NH2 groups.

AB - Antibiotics have been frequently detected in the environment and watercourses which can inspire bacterial resistance and create super-bacteria; resulting in potential adverse impacts on the human health and environment. This work thus investigated the synergistic effect of a combined process (ferrate(VI) oxidation with montmorillonite adsorption), in comparison with either the oxidation or adsorption alone, for the removal of one of antibiotics, sulfadiazine (SDZ). The results manifested that all the three combined processes can promote the removal of SDZ but the simultaneous oxidation and adsorption can achieve the outperforming removal of SDZ (76.20%) in comparison with the oxidation alone (60%) or adsorption alone (10%) for the same given conditions, and the synergistic effect of combined oxidation/adsorption was confirmed. Additionally, the degradation of SDZ by ferrate(VI) fitted in the pseudo-second-order reaction characteristics, and the total reaction rate constant was derived as 2.97*10-4 L2 mg-2 min-1. The study also explored the possible pathways of the SDZ degradation by ferrate(VI) and potential oxidation product formation when an incompletemineralization of SDZ was observed. The oxidation product formed was proposed as a macromolecular-like compound containing RNO2 groups which were oxidized from the initial structure of SDZ containing R-NH2 groups.

KW - ferrate(VI)

KW - degradation and its pathways

KW - montmorillonite

KW - oxidation

KW - sorption

KW - sulfadiazine (SDZ)

U2 - 10.1016/j.jece.2019.103225

DO - 10.1016/j.jece.2019.103225

M3 - Article

VL - 7

JO - Journal of Environmental Chemical Engineering

JF - Journal of Environmental Chemical Engineering

SN - 2213-3437

IS - 4

M1 - 103225

ER -