English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/156006
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Lignin and ethylcellulose in controlled release formulations to reduce leaching of chloridazon and metribuzin in light-textured soils

AuthorsFlores-Céspedes, F.; Daza-Fernández, I.; Villafranca-Sánchez, M.; Fernández-Pérez, M.; Morillo González, Esmeralda ; Undabeytia López, Tomás
KeywordsHerbicides
Lignin
Ethylcellulose
Controlled release
Leaching
Issue Date5-Feb-2018
PublisherElsevier
CitationJournal of Hazardous Materials (343): 227-234 (2018)
AbstractIn this research, controlled release formulations (CRFs) of the herbicides chloridazon and metribuzin, identified as potential leachers, have been evaluated in soils with different texture. To prepare the CRFs, ethylcellulose (EC) and dibutylsebacate (DBS) have been used as coating agents in lignin-polyethylene glycol based formulations. Mobility experiments have been carried out in two light textured soils (sandy and sandy-loam). Breakthrough curves have shown that the use of CRFs reduces the presence of chloridazon and metribuzin in the leachate compared to technical and commercial products, being the lignin CRF coated with EC and DBS the most efficient to diminish the herbicide leaching. Mass balance study has shown a higher amount of chloridazon and metribuzin recovered in soils when these herbicides were tested as CRFs compared to technical and commercial products. The gradual release of herbicides from the CRFs resulting in a rather available levels of chloridazon and metribuzin in soil for a longer time. A good correlation between percentages of herbicide recovered in leachates and T50 values (time corresponding to 50% release of herbicide in water) was obtained, which allows to select the most appropriate CRF in each agro-environmental practice to reduce the potential pollution of groundwater by chloridazon and metribuzin.
Description8 páginas.-- 5 figuras.-- 2 tablas.-- 34 referencias.--
Publisher version (URL)http://dx.doi.org/10.1016/j.jhazmat.2017.09.012
URIhttp://hdl.handle.net/10261/156006
DOIhttp://dx.doi.org/10.1016/j.jhazmat.2017.09.012
E-ISSN1873-3336
Appears in Collections:(IRNAS) Artículos
Files in This Item:
File Description SizeFormat 
Lignin_ethylcellulose_controlled_2018_Postprint.pdf472,52 kBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.