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dc.contributor.authorAlbarrán, A.-
dc.contributor.authorCelis, R.-
dc.contributor.authorHermosín, M.C.-
dc.contributor.authorLópez-Piñeiro, A.-
dc.contributor.authorCornejo, J.-
dc.date.accessioned2012-11-21T19:06:42Z-
dc.date.available2012-11-21T19:06:42Z-
dc.date.issued2004-
dc.identifierdoi: 10.1016/j.chemosphere.2003.09.004-
dc.identifierissn: 0045-6535-
dc.identifier.citationChemosphere 54: 717-724 (2004)-
dc.identifier.urihttp://hdl.handle.net/10261/60823-
dc.description.abstractAddition of organic wastes to agricultural soils is becoming a common practice as a disposal strategy and to improve the physical and chemical soil properties. However, in order to optimise the use of organic wastes as soil amendments, their effect on the behaviour of other compounds that are also used in agriculture, such as pesticides, needs to be assessed. In this work, we have investigated the effects of the addition of the final solid residue of the new technology of olive-oil extraction (extracted alperujo or solid olive-mill waste, SOMW2) on the sorption, degradation and leaching of the herbicide simazine in a sandy loam soil. The results are compared with those of a previous study, where the intermediary by-product of the olive-oil processing technology (unextracted alperujo or SOMW1) was applied to the same soil. The soil was amended in the laboratory with SOMW2 at two different rates (5% and 10% w/w). Simazine sorption isotherms showed a great increase in herbicide sorption after SOMW2 addition to soil. SOMW2 addition also increased sorption irreversibility. Incubation studies revealed reduced biodegradation of simazine in the soil amended with SOMW2 compared to the unamended soil. Breakthrough curves of simazine in handpacked soil columns showed that SOMW2 addition retarded the vertical movement of the herbicide through the soil and greatly reduced the amount of herbicide available for leaching. Interestingly, the results were quantitatively different from those obtained for the intermediary by-product SOMW1, illustrating the importance of the specific characteristics of the organic amendment in determining its effect on pesticide behaviour.-
dc.description.sponsorshipThis work has been partially financed by the Projects IFD 97-2222-C03-01, CAO-01-010, and IPR00C012. A. Albarrán also thanks the Junta de Extremadura for his FPI fellowship.-
dc.language.isoeng-
dc.publisherPergamon Press-
dc.rightsclosedAccess-
dc.titleBehaviour of simazine in soil amended with the final residue of the olive-oil extraction process-
dc.typeartículo-
dc.identifier.doi10.1016/j.chemosphere.2003.09.004-
dc.date.updated2012-11-21T19:06:46Z-
dc.description.versionPeer Reviewed-
dc.contributor.funderJunta de Extremadura-
dc.contributor.funderJunta de Andalucía-
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