Mössbauer study of contaminated soils by industrial activity in Paramonga city, Region Lima Provinces, Peru

Angel Bustamante, Julio Andres Fabian Salvador, Luis De Los Santos, C. H.W. Barnes, Yutaka Majima

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

Resumen

In this work we characterize soils from the Paramonga city, Region Lima Provinces in Peru, which are contaminated by residual chemicals (Br, As and Sr) from sugar and paper industry in the city. Four samples were collected, labelled as S1, S2, S3 and S4 and analized by X-ray diffraction (XRD), energy-dispersive X-ray fluorescence (EDXRF) and Mössbauer spectroscopy. For all the samples, the chemical analysis by EDXRF revealed the presence of Fe, Mn, Cu, Zn, K, Br, Sr. The XRD detected the presence of quartz as principal phase and copper sulfide and potassium magnesium as secondary phases. The Mössbauer spectra at room temperature (RT) for all the samples exhibit sextets which reveal the presence of an iron oxide or hydroxide. The fitting Mössbauer for both samples S1 and S4 have three doublets corresponding to iron in paramagnetic phases and a magnetic component of around 35.50 T corresponding to goethite, α-FeOOH. Sample S2 have two magnetic phases with internal fields of 37 T and 34.6 T which correspond to the goethite and other incorporated element in the structure. The sample S3 have three magnetic fields of H1 = 36.8 T, H2 = 33.6 T and H3 = 34.8 T which correspond to hydroxide iron, pyrrhotite and goethite respectively.

Idioma originalInglés
Páginas (desde-hasta)147-152
Número de páginas6
PublicaciónHyperfine Interactions
Volumen211
N.º1-3
DOI
EstadoPublicada - may 2012
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Mössbauer study of contaminated soils by industrial activity in Paramonga city, Region Lima Provinces, Peru'. En conjunto forman una huella única.

Citar esto