Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 660, Issue -, Pages 541-549Publisher
ELSEVIER
DOI: 10.1016/j.scitotenv.2019.01.037
Keywords
Nitrate; Antibiotics; nZVI; Acid mine drainage; Ultrasound
Categories
Funding
- National Natural Science Foundation of China [21407155, 51508116]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2018)
- Guangdong Province Science and Technology Project [2015A020215022, 2015A020215035]
- Guangzhou Municipal Science and Technology Project [201704020187]
- [XJ2018032]
Ask authors/readers for more resources
Herein, the application of a novel acid mine drainage-based nanoscale zero valent iron (AMD-based nZVI) for the remediation of nitrate and norfloxacin (NOR) was studied. Experimental results indicated that the catalytic reactivity of AMD-based nZVI toward nitrate reduction was superior to that of iron salt-based nanoscale zero valent iron (Iron salt-based nZVI). The presence of ultrasound irradiation could significantly enhance the reactivity toward both the nitrate reduction and NOR oxidation processes. The optimal efficiencies of nitrate and NOR by AMD-based nZVI/US process could be kept 96 and 94% within 120 min, respectively. Ammonia was identified as a major product in nitrate reduction process, while three oxidation products were observed in NOR degradation process. Both reduction reaction of nitrate from AMD-based nZVI and oxidation reaction of NOR from US-assisted Fenton system might be involved in AMD-based nZVI/US process. The AMD-based nZVI/US process showed a better performance on the removal of NOR compared with that of nitrate. The findings of the present work could be as a guide and show that AMD-based nZVI/US process is feasible for the remediation of both nitrate and NOR in real wastewater. (C) 2019 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available