Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.

Degradation of 2,4,6-trichlorophenol (2,4,6-TCP) by zero-valent iron (ZVI) activating three common peroxides (peroxymonosulfate (PMS), hydrogen peroxide (H2O2), and peroxydisulfate (PS)) was investigated. The effects of ZVI dosage, peroxides concentration, initial pH, and Cl- concentration were exam...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Luoyan Ai, Tiancheng Ren, Qin Yan, Mengdan Wan, Yajuan Peng, Xiaoyun Xu, Xinxin Liu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/6e7205af30f64b5db51121f110f5021c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:6e7205af30f64b5db51121f110f5021c
record_format	dspace
spelling	oai:doaj.org-article:6e7205af30f64b5db51121f110f5021c2021-12-02T20:14:17ZDegradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.1932-620310.1371/journal.pone.0257415https://doaj.org/article/6e7205af30f64b5db51121f110f5021c2021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257415https://doaj.org/toc/1932-6203Degradation of 2,4,6-trichlorophenol (2,4,6-TCP) by zero-valent iron (ZVI) activating three common peroxides (peroxymonosulfate (PMS), hydrogen peroxide (H2O2), and peroxydisulfate (PS)) was investigated. The effects of ZVI dosage, peroxides concentration, initial pH, and Cl- concentration were examined. The 2,4,6-TCP degradation efficiencies by Fe0/peroxides (PMS, H2O2, PS) were compared. Results showed that the order for degradation efficiency was H2O2≥PMS>PS. The degradation efficiency of 2,4,6-TCP in ZVI/peroxides systems were optimal at c(Ox) = 1 mmol•L-1; c(Fe0) = 0.1 g/L; initial pH = 3.2. Additionally, pH had a vital effect on 2,4,6-TCP degradation. At pH<3.2, ferrous play a vital role in all reaction, and accelerate the reaction rate rapidly. The existence of NaCl showed different results in the four systems. Chloride had little effect on 2,4,6-TCP degradation when chloride concentration at 5 mM, whereas the presence of 300 mM chloride significantly accelerated the degradation of 2,4,6-TCP from 72.7% to 95.2% in ZVI-PMS system. Notably, the other three systems showed opposite results. In contrast, the AOX (Absorbable Organic Halogen) values were highest in ZVI-PMS-Cl- system, due to the formation of lots of refractory chlorinated phenols as identified by GC-MS. These findings are good for choosing the most suitable technology for chlorophenol wastewater treatment.Luoyan AiTiancheng RenQin YanMengdan WanYajuan PengXiaoyun XuXinxin LiuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257415 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Luoyan Ai Tiancheng Ren Qin Yan Mengdan Wan Yajuan Peng Xiaoyun Xu Xinxin Liu Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
description	Degradation of 2,4,6-trichlorophenol (2,4,6-TCP) by zero-valent iron (ZVI) activating three common peroxides (peroxymonosulfate (PMS), hydrogen peroxide (H2O2), and peroxydisulfate (PS)) was investigated. The effects of ZVI dosage, peroxides concentration, initial pH, and Cl- concentration were examined. The 2,4,6-TCP degradation efficiencies by Fe0/peroxides (PMS, H2O2, PS) were compared. Results showed that the order for degradation efficiency was H2O2≥PMS>PS. The degradation efficiency of 2,4,6-TCP in ZVI/peroxides systems were optimal at c(Ox) = 1 mmol•L-1; c(Fe0) = 0.1 g/L; initial pH = 3.2. Additionally, pH had a vital effect on 2,4,6-TCP degradation. At pH<3.2, ferrous play a vital role in all reaction, and accelerate the reaction rate rapidly. The existence of NaCl showed different results in the four systems. Chloride had little effect on 2,4,6-TCP degradation when chloride concentration at 5 mM, whereas the presence of 300 mM chloride significantly accelerated the degradation of 2,4,6-TCP from 72.7% to 95.2% in ZVI-PMS system. Notably, the other three systems showed opposite results. In contrast, the AOX (Absorbable Organic Halogen) values were highest in ZVI-PMS-Cl- system, due to the formation of lots of refractory chlorinated phenols as identified by GC-MS. These findings are good for choosing the most suitable technology for chlorophenol wastewater treatment.
format	article
author	Luoyan Ai Tiancheng Ren Qin Yan Mengdan Wan Yajuan Peng Xiaoyun Xu Xinxin Liu
author_facet	Luoyan Ai Tiancheng Ren Qin Yan Mengdan Wan Yajuan Peng Xiaoyun Xu Xinxin Liu
author_sort	Luoyan Ai
title	Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
title_short	Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
title_full	Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
title_fullStr	Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
title_full_unstemmed	Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.
title_sort	degradation efficiencies of 2,4,6-tcp by fe0-based advanced oxidation processes (aops) with common peroxides.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/6e7205af30f64b5db51121f110f5021c
work_keys_str_mv	AT luoyanai degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT tianchengren degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT qinyan degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT mengdanwan degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT yajuanpeng degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT xiaoyunxu degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides AT xinxinliu degradationefficienciesof246tcpbyfe0basedadvancedoxidationprocessesaopswithcommonperoxides
_version_	1718374650574012416

Degradation efficiencies of 2,4,6-TCP by Fe0-based advanced oxidation processes (AOPs) with common peroxides.

Ejemplares similares