Non-thermal plasma needle as an effective tool in dimethoate removal from water

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dc.citation.rankM21
dc.citation.spage63
dc.citation.volume246
dc.contributor.authorMitrović, Tatjana
dc.contributor.authorLazović, Saša
dc.contributor.authorNastasijević, Branislav
dc.contributor.authorPašti, Igor A.
dc.contributor.authorVasić, Vesna
dc.contributor.authorLazarević-Pašti, Tamara
dc.date.accessioned2024-06-25T07:23:22Z
dc.date.available2024-06-25T07:23:22Z
dc.date.issued2019-09-15
dc.description.abstractIntensive use of pesticides requires innovative approaches for their removal from the environment. Here we report the method for degradation of dimethoate in water using non-thermal plasma needle and analyze kinetics of dimethoate removal and possible degradation pathways. The effects of dimethoate initial concentration, plasma treatment time, Argon flow rate and the presence of radical promoters on the effectiveness of proposed method are evaluated. With argon flow rate of 0.5 slm (standard litres per minute) 1 × 10−4 M dimethoate can be removed within 30 min of treatment. Using UPLC analysis it was confirmed that one of the decomposition products is dimethoate oxo-analogue omethoate, which is in fact more toxic than dimethoate. However, the overall toxicity of contaminated water was reduced upon the treatment. The addition of H2O2 as a free radical promoter enhances dimethoate removal, while K2S2O8 results with selective conversion to omethoate. Using mass spectrometry in combination with the theoretical calculations, possible degradation pathways were proposed. The feasibility of the proposed method for dimethoate degradation in real water samples is confirmed. The proposed method is demonstrated as a highly effective approach for dimethoate removal without significant accumulation of undesirable toxic products and secondary waste.
dc.identifier.issn0301-4797
dc.identifier.issn1095-8630
dc.identifier.scopus2-s2.0-85067016418
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/136
dc.identifier.wos000482246700007
dc.language.isoen
dc.publisherAcademic Press
dc.relation.ispartofJournal of Environmental Management
dc.relation.ispartofabbrJ. Environ. Manag.
dc.rightsopenAccess
dc.titleNon-thermal plasma needle as an effective tool in dimethoate removal from water
dc.typeArticle
dc.type.versionpublishedVersion
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