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Kinetics and mechanisms of the degradation of PPCPs by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system in groundwater.
J Hazard Mater. 2018 09 05; 357:207-216.JH

Abstract

The abatement of pharmaceuticals and personal care products (PPCPs), including carbamazepine (CBZ), acetaminophen (ACP) and sulfamethoxazole (SMX), by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system (Fe°/PDS) in pure water and groundwater was investigated. The removal rates of CBZ, ACP and SMX were 85.4%, 100% and 73.1%, respectively, within 10 min by Fe°/PDS in pure water. SO4•-, •OH and O2•- were identified in the Fe°/PDS system, and O2•- was indicated to play an important role in the ACP degradation. The degradation of PPCPs increased with increasing dosages of Fe° and PDS or with decreasing pH and initial PPCP concentrations. Interestingly, the degradation of PPCPs by Fe°/PDS was significantly enhanced in groundwater compared with that in pure water, which was partially attributed to SO42- and Cl-. The first-order constants of CBZ, ACP and SMX increased from 0.021, 0.242 and 0.013 min-1 to 0.239, 2.536 and 0.259 min-1, and to 0.172, 1.516 and 0.197 min-1, respectively, with increasing the concentrations of SO42- and Cl- to 100 mg/L and 10 mg/L, respectively. This study firstly reports the unexpected enhancement of groundwater matrix on the degradation of micropollutants by Fe°/PDS, demonstrating that Fe°/PDS can be an efficient technology for groundwater remediation.

Authors+Show Affiliations

Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou, 310018, PR China.School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China.Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, PR China. Electronic address: fangjy3@mail.sysu.edu.cn.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29890417

Citation

Li, Ailin, et al. "Kinetics and Mechanisms of the Degradation of PPCPs By Zero-valent Iron (Fe°) Activated Peroxydisulfate (PDS) System in Groundwater." Journal of Hazardous Materials, vol. 357, 2018, pp. 207-216.
Li A, Wu Z, Wang T, et al. Kinetics and mechanisms of the degradation of PPCPs by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system in groundwater. J Hazard Mater. 2018;357:207-216.
Li, A., Wu, Z., Wang, T., Hou, S., Huang, B., Kong, X., Li, X., Guan, Y., Qiu, R., & Fang, J. (2018). Kinetics and mechanisms of the degradation of PPCPs by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system in groundwater. Journal of Hazardous Materials, 357, 207-216. https://doi.org/10.1016/j.jhazmat.2018.06.008
Li A, et al. Kinetics and Mechanisms of the Degradation of PPCPs By Zero-valent Iron (Fe°) Activated Peroxydisulfate (PDS) System in Groundwater. J Hazard Mater. 2018 09 5;357:207-216. PubMed PMID: 29890417.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Kinetics and mechanisms of the degradation of PPCPs by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system in groundwater. AU - Li,Ailin, AU - Wu,Zihao, AU - Wang,Tingting, AU - Hou,Shaodong, AU - Huang,Bangjie, AU - Kong,Xiujuan, AU - Li,Xuchun, AU - Guan,Yinghong, AU - Qiu,Rongliang, AU - Fang,Jingyun, Y1 - 2018/06/03/ PY - 2017/12/31/received PY - 2018/06/01/revised PY - 2018/06/02/accepted PY - 2018/6/12/pubmed PY - 2019/11/7/medline PY - 2018/6/12/entrez KW - Advanced oxidation process KW - Groundwater remediation KW - Pharmaceuticals and personal care products (PPCPs) KW - Sulfate radicals KW - Zero-valent iron SP - 207 EP - 216 JF - Journal of hazardous materials JO - J. Hazard. Mater. VL - 357 N2 - The abatement of pharmaceuticals and personal care products (PPCPs), including carbamazepine (CBZ), acetaminophen (ACP) and sulfamethoxazole (SMX), by zero-valent iron (Fe°) activated peroxydisulfate (PDS) system (Fe°/PDS) in pure water and groundwater was investigated. The removal rates of CBZ, ACP and SMX were 85.4%, 100% and 73.1%, respectively, within 10 min by Fe°/PDS in pure water. SO4•-, •OH and O2•- were identified in the Fe°/PDS system, and O2•- was indicated to play an important role in the ACP degradation. The degradation of PPCPs increased with increasing dosages of Fe° and PDS or with decreasing pH and initial PPCP concentrations. Interestingly, the degradation of PPCPs by Fe°/PDS was significantly enhanced in groundwater compared with that in pure water, which was partially attributed to SO42- and Cl-. The first-order constants of CBZ, ACP and SMX increased from 0.021, 0.242 and 0.013 min-1 to 0.239, 2.536 and 0.259 min-1, and to 0.172, 1.516 and 0.197 min-1, respectively, with increasing the concentrations of SO42- and Cl- to 100 mg/L and 10 mg/L, respectively. This study firstly reports the unexpected enhancement of groundwater matrix on the degradation of micropollutants by Fe°/PDS, demonstrating that Fe°/PDS can be an efficient technology for groundwater remediation. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/29890417/Kinetics_and_mechanisms_of_the_degradation_of_PPCPs_by_zero_valent_iron__Fe°__activated_peroxydisulfate__PDS__system_in_groundwater_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(18)30448-5 DB - PRIME DP - Unbound Medicine ER -