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Effect of peroxydisulfate on the degradation of phenol under dielectric barrier discharge plasma treatment.
Chemosphere. 2019 Oct; 232:462-470.C

Abstract

The activation of peroxydisulfate (PDS) by gas/liquid dielectric barrier discharge (DBD) plasma in a flat plate configuration was assessed through phenol removal. The results indicated that PDS addition exhibited a significantly promoting effect on phenol removal and mineralization. In the reaction lacking PDS, phenol in aqueous solution was removed from the initial 10 mg L-1 to 4.75 mg L-1 (by 52.5%), whereas the addition of 1770 mg L-1 PDS increased the overall removal to 78.7%, as indicated by a one-fold increase in the pseudo-first-order kinetic constant. In addition, the corresponding total organic carbon (TOC) removal was increased from 27.5% to 48.4%. Furthermore, an increased input voltage was favourable for increases in phenol removal, the kinetic constant and PDS utilization, which were also influenced by the PDS dose, initial solution pH and water matrix. In addition, through the analysis of radical quenching experiments, the enhancement could be mainly attributed to the production of SO4•- and •OH by PDS activation by discharge plasma. The DBD system coupled with PDS exhibited a high removal efficiency for phenol, and thus, the overall findings could provide new insight into wastewater treatment.

Authors+Show Affiliations

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China. Electronic address: gszhanghit@gmail.com.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China.State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, China. Electronic address: pwang73@vip.sina.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31158641

Citation

Wang, Xiaojing, et al. "Effect of Peroxydisulfate On the Degradation of Phenol Under Dielectric Barrier Discharge Plasma Treatment." Chemosphere, vol. 232, 2019, pp. 462-470.
Wang X, Zhang G, Liu X, et al. Effect of peroxydisulfate on the degradation of phenol under dielectric barrier discharge plasma treatment. Chemosphere. 2019;232:462-470.
Wang, X., Zhang, G., Liu, X., Hu, L., Wang, Q., & Wang, P. (2019). Effect of peroxydisulfate on the degradation of phenol under dielectric barrier discharge plasma treatment. Chemosphere, 232, 462-470. https://doi.org/10.1016/j.chemosphere.2019.05.214
Wang X, et al. Effect of Peroxydisulfate On the Degradation of Phenol Under Dielectric Barrier Discharge Plasma Treatment. Chemosphere. 2019;232:462-470. PubMed PMID: 31158641.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of peroxydisulfate on the degradation of phenol under dielectric barrier discharge plasma treatment. AU - Wang,Xiaojing, AU - Zhang,Guangshan, AU - Liu,Xiaomeng, AU - Hu,Limin, AU - Wang,Qiao, AU - Wang,Peng, Y1 - 2019/05/26/ PY - 2019/04/10/received PY - 2019/05/20/revised PY - 2019/05/23/accepted PY - 2019/6/4/pubmed PY - 2019/8/15/medline PY - 2019/6/4/entrez KW - Dielectric barrier discharge plasma KW - Peroxydisulfate activation KW - Phenol degradation KW - Sulfate radical SP - 462 EP - 470 JF - Chemosphere JO - Chemosphere VL - 232 N2 - The activation of peroxydisulfate (PDS) by gas/liquid dielectric barrier discharge (DBD) plasma in a flat plate configuration was assessed through phenol removal. The results indicated that PDS addition exhibited a significantly promoting effect on phenol removal and mineralization. In the reaction lacking PDS, phenol in aqueous solution was removed from the initial 10 mg L-1 to 4.75 mg L-1 (by 52.5%), whereas the addition of 1770 mg L-1 PDS increased the overall removal to 78.7%, as indicated by a one-fold increase in the pseudo-first-order kinetic constant. In addition, the corresponding total organic carbon (TOC) removal was increased from 27.5% to 48.4%. Furthermore, an increased input voltage was favourable for increases in phenol removal, the kinetic constant and PDS utilization, which were also influenced by the PDS dose, initial solution pH and water matrix. In addition, through the analysis of radical quenching experiments, the enhancement could be mainly attributed to the production of SO4•- and •OH by PDS activation by discharge plasma. The DBD system coupled with PDS exhibited a high removal efficiency for phenol, and thus, the overall findings could provide new insight into wastewater treatment. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/31158641/Effect_of_peroxydisulfate_on_the_degradation_of_phenol_under_dielectric_barrier_discharge_plasma_treatment_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(19)31135-X DB - PRIME DP - Unbound Medicine ER -