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%0 Journal Article
%4 sid.inpe.br/mtc-m21d/2022/06.23.19.32
%2 sid.inpe.br/mtc-m21d/2022/06.23.19.32.01
%T Using Hybrid Coupling Processes for the Treatment of Waste Containing Halosulfuron-Methyl Herbicide
%D 2022
%8 June
%9 journal article
%A Souza, Fernanda L.,
%A Linares, José J.,
%A Ferreira, Neidenêi Gomes,
%A Lanza, Marcos R. V.,
%@affiliation Universidade Federal de São Carlos (UFSCar)
%@affiliation Universidade de Brasília (UnB)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade Federal de São Carlos (UFSCar)
%@electronicmailaddress fersouza.usp@gmail.com
%@electronicmailaddress
%@electronicmailaddress ng.ferreira@hotmail.com
%B Chemelectrochem
%V 9
%N 11
%P e202200221
%K Fenton, hydrogen peroxide, UV lightboron-doped diamond, Halomethyl sulfuron.
%X This work aims to demonstrate the importance of coupling different degradation processes for the removal of the commercial herbicide Halosulfuron-Methyl (HSM). Using anode oxidation (AO) on boron-doped diamond as the base process; cathodically produced H2O2 (AO/H2O2), UV light (AO/UV), AO/UV/H2O2, electro-Fenton and photoelectron Fenton (PEF) are employed as hybrid processes for HSM degradation. All hybrid processes employed in the study exhibited synergism with AO, and the UV-irradiated processes presented an outstanding performance. In particular, the AO/UV/H2O2 process exhibited 90 % mineralization after 3 h of treatment, whereas the PEF process exhibited a complete removal of HSM after 45 min of treatment. In addition to the noticeable advantages of hybridization, the application of higher current densities is found to accelerate the degradation/mineralization of the compound of interest, although the process tends to be more energy demanding. In such a case, the use of a hybrid treatment process coupled to UV-irradiation allows one to mitigate this constraint while contributing toward obtaining higher mineralization degrees. The degradation/mineralization of more concentrated solutions is, however, found to occur more sluggishly under the treatment mechanisms investigated here, requiring longer times, although the process is noticeably more efficient in photo-irradiated processes, which recorded current efficiencies of above 100 %.
%@language en
%3 ChemElectroChem - 2022 - Souza - Using Hybrid Coupling Processes for the Treatment of Waste Containing Halosulfuron‐Methyl.pdf


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