PMID- 30953896
OWN - NLM
STAT- MEDLINE
DCOM- 20190625
LR  - 20221207
IS  - 1879-1298 (Electronic)
IS  - 0045-6535 (Linking)
VI  - 226
DP  - 2019 Jul
TI  - Evaluation of transformation products from chemical oxidation of micropollutants 
      in wastewater by photoassisted generation of sulfate radicals.
PG  - 509-519
LID - S0045-6535(19)30598-3 [pii]
LID - 10.1016/j.chemosphere.2019.03.152 [doi]
AB  - In this research, the degradation of seven different micropollutants (MPs) and 
      the formation of their transformation products (TPs) have been assessed during 
      the application of different advanced oxidation processes: photolytic and 
      photocatalytic activation of peroxymonosulfate (PMS) and persulfate (PS). The 
      results were compared with those obtained from the photolytic experiments using 
      hydrogen peroxide (H(2)O(2)) as oxidant. A significant abatement of almost all 
      MPs was achieved, even with very low UV-C contact time (9 and 28 s). The 
      degradation of atenolol (ATN) and caffeine (CFN) ranged from 84 to 100% with a 
      dose of 0.5 mM of any oxidant. The efficiencies for bisphenol-A (BPA), 
      carbamazepine (CBZ), diclofenac (DCF), ibuprofen (IBP), and sulfamethoxazole 
      (SMX) varied depending on the oxidation system and operating conditions (oxidant 
      dose and UV-C contact time), leading to the photolysis of PMS to higher 
      efficiencies than PS and H(2)O(2). In all cases, the abatement of MPs ranged from 
      63 to 83%, even with the lowest PMS dosage. Moreover, the addition of Fe(II) as a 
      catalyst enhanced the removal efficiency, reaching almost total removal, 
      especially over CBZ, DCF, and IBP. The Dissolved Organic Carbon (DOC) removal 
      ranged between 44 and 62%, suggesting the transformation of MPs in intermediate 
      compounds. The identification of transformation products was carried out for each 
      micropollutant and each oxidation treatment, being observed some transformation 
      products specific of oxidation by sulfate radicals. For example, m/z 165.0432 
      only appeared after PMS/Fe(II)/UV-C on the degradation of BFA, m/z 251.082 
      appeared after photolytic activation of PMS and PS on CBZ removal, and m/z 
      128.0452 was observed after any sulfate radical oxidation treatment, but not 
      after photolysis of H(2)O(2).
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Rodriguez-Chueca, Jorge
AU  - Rodriguez-Chueca J
AD  - Department of Chemical and Environmental Technology (ESCET), Universidad Rey Juan 
      Carlos, C/ Tulipan s/n, 28933, Mostoles, Madrid, Spain; Department of Industrial 
      Chemical & Environmental Engineering, Escuela Tecnica Superior de Ingenieros 
      Industriales, Universidad Politecnica de Madrid, C/ Jose Gutierrez Abascal 2, 
      28006, Madrid, Spain.
FAU - Garcia-Canibano, Carmen
AU  - Garcia-Canibano C
AD  - Department of Chemical and Environmental Technology (ESCET), Universidad Rey Juan 
      Carlos, C/ Tulipan s/n, 28933, Mostoles, Madrid, Spain.
FAU - Sarro, Marco
AU  - Sarro M
AD  - Department of Chemistry, University of Torino, via P. Giuria 5, 10125, Torino, 
      Italy.
FAU - Encinas, Angel
AU  - Encinas A
AD  - Department of Innovation & Technology, FCC Aqualia, S.A., C/ Montesinos 28, 
      06002, Badajoz, Spain.
FAU - Medana, Claudio
AU  - Medana C
AD  - Department of Molecular Biotechnology and Health Sciences, University of Torino, 
      via Nizza 52, 10125, Torino, Italy.
FAU - Fabbri, Debora
AU  - Fabbri D
AD  - Department of Chemistry, University of Torino, via P. Giuria 5, 10125, Torino, 
      Italy.
FAU - Calza, Paola
AU  - Calza P
AD  - Department of Chemistry, University of Torino, via P. Giuria 5, 10125, Torino, 
      Italy.
FAU - Marugan, Javier
AU  - Marugan J
AD  - Department of Chemical and Environmental Technology (ESCET), Universidad Rey Juan 
      Carlos, C/ Tulipan s/n, 28933, Mostoles, Madrid, Spain. Electronic address: 
      javier.marugan@urjc.es.
LA  - eng
PT  - Journal Article
DEP - 20190328
PL  - England
TA  - Chemosphere
JT  - Chemosphere
JID - 0320657
RN  - 0 (Benzhydryl Compounds)
RN  - 0 (Oxidants)
RN  - 0 (Peroxides)
RN  - 0 (Phenols)
RN  - 0 (Sulfates)
RN  - 0 (Waste Water)
RN  - 0 (Water Pollutants, Chemical)
RN  - 0 (sulfate radical)
RN  - 144O8QL0L1 (Diclofenac)
RN  - 22047-43-4 (peroxymonosulfate)
RN  - 33CM23913M (Carbamazepine)
RN  - 3G6A5W338E (Caffeine)
RN  - 50VV3VW0TI (Atenolol)
RN  - BBX060AN9V (Hydrogen Peroxide)
RN  - JE42381TNV (Sulfamethoxazole)
RN  - MLT3645I99 (bisphenol A)
SB  - IM
MH  - Atenolol/metabolism
MH  - Benzhydryl Compounds/metabolism
MH  - Caffeine/metabolism
MH  - Carbamazepine/metabolism
MH  - Catalysis
MH  - Diclofenac/metabolism
MH  - Hydrogen Peroxide/*chemistry
MH  - Oxidants/chemistry
MH  - Oxidation-Reduction
MH  - Peroxides/*chemistry
MH  - Phenols/metabolism
MH  - *Photolysis
MH  - Sulfamethoxazole/metabolism
MH  - Sulfates/analysis/*chemistry
MH  - Ultraviolet Rays
MH  - Wastewater/*chemistry
MH  - Water Pollutants, Chemical/*analysis/*metabolism
MH  - Water Pollution, Chemical/*analysis
OTO - NOTNLM
OT  - Mechanisms
OT  - Micropollutants
OT  - Sulfate radicals
OT  - Transformation products
OT  - UV-C radiation
EDAT- 2019/04/07 06:00
MHDA- 2019/06/27 06:00
CRDT- 2019/04/07 06:00
PHST- 2018/12/06 00:00 [received]
PHST- 2019/03/11 00:00 [revised]
PHST- 2019/03/22 00:00 [accepted]
PHST- 2019/04/07 06:00 [pubmed]
PHST- 2019/06/27 06:00 [medline]
PHST- 2019/04/07 06:00 [entrez]
AID - S0045-6535(19)30598-3 [pii]
AID - 10.1016/j.chemosphere.2019.03.152 [doi]
PST - ppublish
SO  - Chemosphere. 2019 Jul;226:509-519. doi: 10.1016/j.chemosphere.2019.03.152. Epub 
      2019 Mar 28.