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Author:

Liu, Ying (Liu, Ying.) | Gao, Jingfeng (Gao, Jingfeng.) | Wang, Qian (Wang, Qian.) | Chen, Hao (Chen, Hao.) | Zhang, Yi (Zhang, Yi.) | Fu, Xiaoyu (Fu, Xiaoyu.)

Indexed by:

EI Scopus SCIE

Abstract:

Whether it's necessary to extra chemical synthesis steps to modify nZVI in peroxymonosulfate (PMS) activation process are worth to further investigation. The 56 mg/L nZVI/153.65 mg/L PMS and 56 mg/L sulfidated nZVI (S-nZVI) (S/Fe molar ratio = 1:5)/153.65 mg/L PMS) processes could effectively attain 97.7% (with kobs of 3.7817 min−1) and 97.0% (with kobs of 3.4966 min−1) of the degradation of 20 mg/L sulfadiazine (SDZ) in 1 min, respectively. The nZVI/PMS system could quickly achieve 85.5% degradation of 20 mg/L SDZ in 1 min and effectively inactivate 99.99% of coexisting Pseudomonas. HLS-6 (5.81-log) in 30 min. Electron paramagnetic resonance tests and radical quenching experiments determined SO4•−, HO•, 1O2 and O2•− were responsible for SDZ degradation. The nZVI/PMS system could still achieve the satisfactory degradation efficiency of SDZ under the influence of humic acid (exceeded 96.1%), common anions (exceeded 67.3%), synthetic wastewater effluent (exceeded 90.7%) and real wastewater effluent (exceeded 78.7%). The high degradation efficiency of tetracycline (exceeded 98.9%) and five common disinfectants (exceeded 96.3%) confirmed the applicability of the two systems for pollutants removal. It's no necessary to extra chemical synthesis steps to modify nZVI for PMS activation to remove both chemical and biological pollutants. © 2024 Elsevier B.V.

Keyword:

Efficiency Chemical activation Nanotechnology Iron compounds Synthesis (chemical) Molar ratio Paramagnetic resonance Degradation Bacteria

Author Community:

  • [ 1 ] [Liu, Ying]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Gao, Jingfeng]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Wang, Qian]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Chen, Hao]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Zhang, Yi]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 6 ] [Fu, Xiaoyu]National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Department of Environmental Engineering, Beijing University of Technology, Beijing; 100124, China

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Source :

Journal of Hazardous Materials

ISSN: 0304-3894

Year: 2024

Volume: 469

1 3 . 6 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 14

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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