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Title: Materiais de interações biocarvões/latossolo: caracterização química e físico-química
metadata.dc.creator: MACHADO, Marcelly Christian Galvão Rodrigues
metadata.dc.contributor.advisor1: LEMOS, Vanda Porpino
Keywords: Carvão pirogênico
Agregados organominerais
Solos antrópicos e aromaticidade
Pyrogenic coal
Organominerals aggregate
Soil and aromaticity
Issue Date: 17-Apr-2019
Publisher: Universidade Federal do Pará
Citation: MACHADO, Marcelly Christian Galvão Rodrigues. Materiais de interações biocarvões/latossolo: caracterização química e físico-química. Orientadora: Vanda Porpino Lemos. 2019. 64 f. Dissertação (Mestrado em Química) - Instituto de Ciências Exatas e Naturais, Universidade Federal do Pará, Belém, 2019. Disponível em:. Acesso em:.
Abstract: The present study aims to obtain materials from thermochemical interactions biochars-latosoil and to evaluation its chemical and physicochemical properties inrelation to those indicated in high fertility soils. The key importance of this study involves: characteristics indicative of soil with high organic matter stability, as to those indicated for archeological black earth (ABE), due to the structural properties from crystalline and amorphous materials, associated to the organic aggregates, considered natural adsorbent in soils. The sources of biochar were leaves of cinnamon, cacau, cashew and ipê trees and to those for soil was latosoilsample fromthe Caxiuanã region/ Brazil-Pará. The characterization of the materials was performed based on analysis by spectral analytical methods [XRD, FTIR, EDS and MIRO-RAMAN].The results from XRD indicatedspecially characteristics of organic compounds, represented by hexagonal and rhombohedral graphites, turbostratic graphite and graphite oxide. Based elementaryanalysis were obtained atomic ratio O/C corresponding to carbonaceous materials with high aromaticity. Micro-Raman spectra shown bands D e G corresponding to HPA´s pyrene and naphthalene. The following conclusions were obtained: the materials from thermochemical interactions biochars-soil presents chemical and physicochemical properties corresponding to the organic aggregates common in soil with high stability; the presence of HPAs into materials shoud be considered negativefor to use biochars into soils, due to the possibility of contamination of the soil and groundwater.
Appears in Collections:Teses em Química (Doutorado) - PPGQ/ICEN

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