Nanoparticles and nanostructure morphology of a Red Latosol in rehabilitation
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Data
2017-08-01
Autores
Souto Filho, Sebastiao N. [UNESP]
Alves, Marlene C. [UNESP]
Monreal, Carlos M.
Bonini, Carolina dos S. B. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Federal Campina Grande
Resumo
In the process of rehabilitation of a soil, two points are fundamental: to define optimal interferences to accelerate the rehabilitation process and the most appropriate indicators to diagnose its quality. Therefore, this study aimed to investigate the nanoparticle and nanostructure morphology of a Red Latosol in rehabilitation for eight years. The soil under rehabilitation process was compared with its natural state and degraded. In the topsoil, nanoparticles (empty set < 100 nm) and fine clay (empty set < 200 nm) were quantified and the nanostructures morphology was studied using images obtained by transmission electron microscopy. Soil porosity, bulk density and carbon, nitrogen and hydrogen contents were analyzed. It was found that the nanoparticles and nanostructure morphology were good soil quality indicators; the physical and chemical attributes were not sensitive to detect alterations between the conditions of degraded soil and soil rehabilitated for eight years; in the class of particles with diameter smaller than 200 nm, for the studied Red Latosol, the visualization of nanostructures is more effective.
Descrição
Palavras-chave
degraded soil, sewage sludge, electron microscopy, soil porosity
Como citar
Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 21, n. 8, p. 530-536, 2017.