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Insights on the nitrate reduction and norfloxacin oxidation over a novel nanoscale zero valent iron particle: Reactivity, products, and mechanism.
Sci Total Environ. 2019 Apr 10; 660:541-549.ST

Abstract

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.

Authors+Show Affiliations

School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Department of Civil and Environment Engineering, The Hong Kong Polytechnic University, Hong Kong, China. Electronic address: zenghuid86@zhku.edu.cn.School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.Guangzhou University, Guangzhou 510006, China.School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.School of Environmental Science and Engineering, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.Chengdu University of Technology, Chengdu 610059, China. Electronic address: pushengyan13@cdut.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30641381

Citation

Diao, Zeng-Hui, et al. "Insights On the Nitrate Reduction and Norfloxacin Oxidation Over a Novel Nanoscale Zero Valent Iron Particle: Reactivity, Products, and Mechanism." The Science of the Total Environment, vol. 660, 2019, pp. 541-549.
Diao ZH, Qian W, Lei ZX, et al. Insights on the nitrate reduction and norfloxacin oxidation over a novel nanoscale zero valent iron particle: Reactivity, products, and mechanism. Sci Total Environ. 2019;660:541-549.
Diao, Z. H., Qian, W., Lei, Z. X., Kong, L. J., Du, J. J., Liu, H., Yang, J. W., & Pu, S. Y. (2019). Insights on the nitrate reduction and norfloxacin oxidation over a novel nanoscale zero valent iron particle: Reactivity, products, and mechanism. The Science of the Total Environment, 660, 541-549. https://doi.org/10.1016/j.scitotenv.2019.01.037
Diao ZH, et al. Insights On the Nitrate Reduction and Norfloxacin Oxidation Over a Novel Nanoscale Zero Valent Iron Particle: Reactivity, Products, and Mechanism. Sci Total Environ. 2019 Apr 10;660:541-549. PubMed PMID: 30641381.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Insights on the nitrate reduction and norfloxacin oxidation over a novel nanoscale zero valent iron particle: Reactivity, products, and mechanism. AU - Diao,Zeng-Hui, AU - Qian,Wei, AU - Lei,Ze-Xiang, AU - Kong,Ling-Jun, AU - Du,Jian-Jun, AU - Liu,Hui, AU - Yang,Jie-Wen, AU - Pu,Sheng Yan, Y1 - 2019/01/06/ PY - 2018/10/22/received PY - 2018/12/11/revised PY - 2019/01/05/accepted PY - 2019/1/15/pubmed PY - 2019/3/8/medline PY - 2019/1/15/entrez KW - Acid mine drainage KW - Antibiotics KW - Nitrate KW - Ultrasound KW - nZVI SP - 541 EP - 549 JF - The Science of the total environment JO - Sci. Total Environ. VL - 660 N2 - 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. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/30641381/Insights_on_the_nitrate_reduction_and_norfloxacin_oxidation_over_a_novel_nanoscale_zero_valent_iron_particle:_Reactivity_products_and_mechanism_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0048-9697(19)30043-9 DB - PRIME DP - Unbound Medicine ER -