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Reclamation of agro-wastewater polluted with pesticide residues using sunlight activated persulfate for agricultural reuse.

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dc.contributor.authorVela, Nuria
dc.contributor.authorFenoll, José
dc.contributor.authorGarrido, Isabel
dc.contributor.authorPérez-Lucas, Gabriel
dc.contributor.authorFlores, Pilar
dc.contributor.authorHellín, Pilar
dc.contributor.authorNavarro, Simón
dc.contributor.departmentQuímica Agrícola, Geología y Edafología
dc.coverage.spatialRegion of Murciaes
dc.date.accessioned2024-02-01T08:21:21Z
dc.date.available2024-02-01T08:21:21Z
dc.date.issued2019-04-10
dc.description.abstractThe removal of 17 pesticides (pymetrozine, flonicamid, imidacloprid, acetamiprid, cymoxanil, thiachloprid, spinosad, chlorantraniliprole, triadimenol, tebuconazole, fluopyram, difenoconazole, cyflufenamid, hexythiazox, spiromesifen, folpet and acrinathrin) found in agro-wastewater from washing of containers and phytosanitary treatments equipment, has been carried out using sodiumpersulfate (Na2S2O8) at pilot plant scale under natural sunlight. Persulfate is a strong oxidant, inexpensive and environmentally appropriate. However, this oxidant is slow in kinetics under ordinary conditions. Na2S2O8 can be activated by ultraviolet light, generating SO4•− radicals, which are also a very strong oxidizing species (E0= 2.6 V). Previously, preliminary experiments were carried out at laboratory scale using a photoreactor to optimize the Na2S2O8 (300 mg L−1) concentration on the rate constants of the found pesticides. The residual levels of the studied pesticides in agro-wastewater (900 L) were in the range 0.02–1.17 mg L−1 for acrinathrin and fluopyram, respectively. After treatment, nearly complete degradation (N97%) of the parent molecules was achieved although 13% of initial DOC was measured. No significant differences (p b 0.05) were found when comparing grown broccoli using reclaimed and unreclaimed water.es
dc.formatapplication/pdfes
dc.format.extent8es
dc.identifier.citationScience of the Total Environment. 660 (2019), 923-930
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2019.01.060
dc.identifier.issnPrint 0048-9697
dc.identifier.issnElectronic 1879-1026
dc.identifier.urihttp://hdl.handle.net/10201/138359
dc.languageenges
dc.publisherElsevieres
dc.relationLIFE-AQUEMFREE 13 ENV/ES/ 000488es
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectBroccoli irrigationes
dc.subjectPersulfatees
dc.subjectPesticideses
dc.subjectSolar photocatalysises
dc.subjectWater reusees
dc.titleReclamation of agro-wastewater polluted with pesticide residues using sunlight activated persulfate for agricultural reuse.es
dc.typeinfo:eu-repo/semantics/articlees
dspace.entity.typePublicationes
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