Removal of oxyfluorfen from ex-situ soil washing fluids using electrolysis with diamond anodes

Santos, Elisama Vieira dos; Sáez, Cristina; Martínez-Huitle, Carlos Alberto; Cañizares, Pablo Canizares; Rodrigo, Manuel Andres

Removal of oxyfluorfen from ex-situ soil washing fluids using electrolysis with diamond anodes

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dc.contributor.author	Santos, Elisama Vieira dos
dc.contributor.author	Sáez, Cristina
dc.contributor.author	Martínez-Huitle, Carlos Alberto
dc.contributor.author	Cañizares, Pablo Canizares
dc.contributor.author	Rodrigo, Manuel Andres
dc.date.accessioned	2020-07-31T18:44:39Z
dc.date.available	2020-07-31T18:44:39Z
dc.date.issued	2016-04-15
dc.description.resumo	In this research, firstly, the treatment of soil spiked with oxyfluorfen was studied using a surfactant-aided soil-washing (SASW) process. After that, the electrochemical treatment of the washing liquid using boron doped diamond (BDD) anodes was performed. Results clearly demonstrate that SASW is a very efficient approach in the treatment of soil, removing the pesticide completely by using dosages below 5 g of sodium dodecyl sulfate (SDS) per Kg of soil. After that, complete mineralization of organic matter (oxyflourfen, SDS and by-products) was attained (100% of total organic carbon and chemical oxygen demand removals) when the washing liquids were electrolyzed using BDD anodes, but the removal rate depends on the size of the particles in solution. Electrolysis of soil washing fluids occurs via the reduction in size of micelles until their complete depletion. Lower concentrations of intermediates are produced (sulfate, chlorine, 4-(trifluoromethyl)-phenol and ortho-nitrophenol) during BDD-electrolyzes. Finally, it is important to indicate that, sulfate (coming from SDS) and chlorine (coming from oxyfluorfen) ions play an important role during the electrochemical organic matter removal	pt_BR
dc.identifier.citation	SANTOS, E. V.; SAEZ, C.; MARTINEZ-HUITLE, C. A.; CANIZARES, P.; RODRIGO, M. A.. Removal of oxyfluorfen from ex-situ soil washing fluids using electrolysis with diamond anodes. Journal of Environmental Management, p. 1-7, 2016. Disponível em: https://www.sciencedirect.com/science/article/pii/S0301479716300251?via%3Dihub Acesso em: 30 jul. 2020. https://doi.org/10.1016/j.jenvman.2016.01.027	pt_BR
dc.identifier.doi	10.1016/j.jenvman.2016.01.027
dc.identifier.issn	0301-4797
dc.identifier.uri	https://repositorio.ufrn.br/jspui/handle/123456789/29770
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Oxyfluorfen	pt_BR
dc.subject	Electrolysis	pt_BR
dc.subject	Soil remediation	pt_BR
dc.subject	Soil washing	pt_BR
dc.subject	Boron doped diamond	pt_BR
dc.title	Removal of oxyfluorfen from ex-situ soil washing fluids using electrolysis with diamond anodes	pt_BR
dc.type	article	pt_BR