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Oxidative removal of benzotriazole using peroxymonosulfate/ozone/ultrasound: Synergy, optimization, degradation intermediates and utilizing for real wastewater.
Chemosphere. 2020 Apr; 244:125326.C

Abstract

This study investigated the degradation efficiency of BTA using combination of ultrasound (US), peroxymonosulfate (PMS), and ozone. The effects of different operational parameters were investigated to optimize the process performance. The results showed that the highest removal efficiency was reached at neutral pH, ozone = 6.8 mg/L, PMS = 1.5 mM and US power = 200 W. Under these conditions, 40 mg/L of BTA was completely degraded within 60 min leading to the almost 85% of chemical oxygen demand removal, 75% of total organic carbon removal and 73.3% of organic nitrogen removal. Based on the scavenging tests, it was found that hydroxyl radical was the main oxidizing agent in the oxidation of BTA by PMS/ozone/US process. The inhibitive effect of anions on BTA removal was under this order NO2- > HCO3- > Cl- > NO3- > SO42-. Degradation intermediates of BTA were identified and oxidation pathway was proposed. Finally, real samples of saline water, petrochemical wastewater and secondary effluent matrices were investigated for the performance of PMS/ozone/US process and it was found that 54%, 72.3% and 94.6% BTA removal efficiency were reached, respectively. PMS/ozone/US process was compared to US/peroxone (ozone + H2O2) and the results showed importance of US irradiation in both systems. Accordingly, PMS/ozone/US process could be considered as an efficient and promising process for BTA degradation in various wastewaters.

Authors+Show Affiliations

Department of Environmental Health Engineering, Abadan Faculty of Medical Sciences, Abadan, Iran. Electronic address: Ghanbari.env@gmail.com.Environmental Science and Technology Research Center, Department of Environmental Health Engineering, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.Department of Environmental Health Engineering, Abadan Faculty of Medical Sciences, Abadan, Iran.Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture & Research Center of Sustainable Energy and Nanotechnology, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, Taiwan. Electronic address: linky@nchu.edu.tw.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31809930

Citation

Ghanbari, Farshid, et al. "Oxidative Removal of Benzotriazole Using Peroxymonosulfate/ozone/ultrasound: Synergy, Optimization, Degradation Intermediates and Utilizing for Real Wastewater." Chemosphere, vol. 244, 2020, p. 125326.
Ghanbari F, Khatebasreh M, Mahdavianpour M, et al. Oxidative removal of benzotriazole using peroxymonosulfate/ozone/ultrasound: Synergy, optimization, degradation intermediates and utilizing for real wastewater. Chemosphere. 2020;244:125326.
Ghanbari, F., Khatebasreh, M., Mahdavianpour, M., & Lin, K. A. (2020). Oxidative removal of benzotriazole using peroxymonosulfate/ozone/ultrasound: Synergy, optimization, degradation intermediates and utilizing for real wastewater. Chemosphere, 244, 125326. https://doi.org/10.1016/j.chemosphere.2019.125326
Ghanbari F, et al. Oxidative Removal of Benzotriazole Using Peroxymonosulfate/ozone/ultrasound: Synergy, Optimization, Degradation Intermediates and Utilizing for Real Wastewater. Chemosphere. 2020;244:125326. PubMed PMID: 31809930.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Oxidative removal of benzotriazole using peroxymonosulfate/ozone/ultrasound: Synergy, optimization, degradation intermediates and utilizing for real wastewater. AU - Ghanbari,Farshid, AU - Khatebasreh,Masoumeh, AU - Mahdavianpour,Mostafa, AU - Lin,Kun-Yi Andrew, Y1 - 2019/11/08/ PY - 2019/07/15/received PY - 2019/10/18/revised PY - 2019/11/05/accepted PY - 2019/12/7/pubmed PY - 2020/3/19/medline PY - 2019/12/7/entrez KW - Benzotriazole KW - Hydroxyl radical KW - Real wastewater KW - Synergy KW - Ultrasound/ozone/peroxymonosulfate SP - 125326 EP - 125326 JF - Chemosphere JO - Chemosphere VL - 244 N2 - This study investigated the degradation efficiency of BTA using combination of ultrasound (US), peroxymonosulfate (PMS), and ozone. The effects of different operational parameters were investigated to optimize the process performance. The results showed that the highest removal efficiency was reached at neutral pH, ozone = 6.8 mg/L, PMS = 1.5 mM and US power = 200 W. Under these conditions, 40 mg/L of BTA was completely degraded within 60 min leading to the almost 85% of chemical oxygen demand removal, 75% of total organic carbon removal and 73.3% of organic nitrogen removal. Based on the scavenging tests, it was found that hydroxyl radical was the main oxidizing agent in the oxidation of BTA by PMS/ozone/US process. The inhibitive effect of anions on BTA removal was under this order NO2- > HCO3- > Cl- > NO3- > SO42-. Degradation intermediates of BTA were identified and oxidation pathway was proposed. Finally, real samples of saline water, petrochemical wastewater and secondary effluent matrices were investigated for the performance of PMS/ozone/US process and it was found that 54%, 72.3% and 94.6% BTA removal efficiency were reached, respectively. PMS/ozone/US process was compared to US/peroxone (ozone + H2O2) and the results showed importance of US irradiation in both systems. Accordingly, PMS/ozone/US process could be considered as an efficient and promising process for BTA degradation in various wastewaters. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31809930/Oxidative_removal_of_benzotriazole_using_peroxymonosulfate/ozone/ultrasound:_Synergy_optimization_degradation_intermediates_and_utilizing_for_real_wastewater_ DB - PRIME DP - Unbound Medicine ER -