7 documents found, page 1 of 1
Adsorption of atrazine for biochar corn straw in soil columns
Schmidt, Camila Jussara; Dieter, Jonathan; Sampaio, Silvio César; Rosa, Danielle Medina; Sbizzaro, Mariana; Suszek, Floriano Luiz; Schmidt, Adir OttoAtrazine is a herbicide widely used in control of predominant broad leaf infestations in agricultural crops such as corn, sorgo and sugarcane, with high mobility in the soil, and may become toxic to aquatic organisms, plants and humans. Thus, the adsorption of pesticides by biocoals becomes a viable option, mitigating the environmental impacts caused. Used in physico-mathematical models, ion leaching tests in s...
Isolation of phosphate-solubilizing bacteria from subtropical soils with differ...
Matter, Juliana Maria; Sampaio, Silvio César; Rosa, Danielle Medina; Remor, Marcelo Bevilacqua; Model, Kathleen Jeniffer; Sbizzaro, MarianaPhosphorus is one of the most abundant chemical elements but has a low bioavailability index. Therefore, microrganisms play a fundamental role in providing insoluble phosphorus to plants. The objective of this study was to evaluate the capacity of bacteria to solubilize inorganic phosphates in soils with different fertilization histories. Soil and rhizosphere samples were collected from a Red Distroferric Latos...
STUDIES OF MINIMUM OUTFLOWS Q1,10 e Q7,10 FROM PARANA’S RIVERS ACCORDING TO GEN...
Ferreira de Queiroz, Manoel Moisés; Sampaio, Silvio César; Gomes, Benedito Martins; Lost, CarolineUma das funções oferecidas pela água é a manutenção de vazões mínimas que suportem o ecossistema aquático. Os cursos d’água desde muito tempo têm sido utilizados como receptores de efluentes domésticos, industriais e agro-industriais. A carga de efluente absorvida por um rio depende da dimensão de sua vazão, assim o estudo de vazões mínimas é relevante sobre este aspecto, entre outros, onde tem sido empregada a...
Water hyacinth biomass stabilization by its composting with swine wasterwater a...
Mees, Juliana Bortoli Rodrigues; Damasceno, Simone; Vilas Boas, Márcio Antônio; Fazolo, Ajadir; Sampaio, Silvio CésarThe objective of the present research was to evaluate the composting of water hyacinth (E. crassipes) biomass, after its usage for the removal of pollutants from the effluent of a swine slaughter house wastewater treatment system, recycling the waste water used for swine transportation trucks and piggery hygienic cleaning and the cellulosic gut generated in the sausage processing . The composting was evaluated ...
Biomass production of the aquatic macrophytes Eichhornia crassipes (water hyaci...
Gentelini, André Luis; Gomes, Simone Damasceno; Feiden, Aldi; Zenatti, Dilcemara; Sampaio, Silvio César; Coldebella, AndersonThe objective of this research was to evaluate the production of biomass of the aquatic macrophytes water hyacinth (Eichhornia crassipes) and egeria (Egeria densa) in three hydraulic detention times in a organic pisciculture effluent treatment system. The system was composed for 18 experimental tanks of 2.00 x 1.00 x 0.65m length, width and depth respectively, coated with polypropylene canvas. An entirely rando...
Estimate and probable monthly rain precipitation distribution in the state of P...
Sampaio, Silvio César; Longo, Adair Jose; Queiroz, Manoel Moises Ferreira de; Gomes, Benedito Martins; Boas, Márcio Antonio Vilas; Suszek, Morgana. Estimate and probable monthly rain precipitation in the state of Paraná through daily precipitation data observed in 22 collection sites ranging between 12 and 26 years are analyzed. All the rainfall series were fitted by gamma and lognormal distributions using likelihood method for parameters. The probable precipitation for periods of 30 days with 75% probability level was estimated by both distribution mode...
Programa Computacional para Simulação em irrigação por Sulcos
Boas, Márcio A. Vilas; Rodrigues, Vera Maria; Sampaio, Silvio CésarO programa lrriga Sulco auxilia técnicos na simulação do avanço e do dimensionamento de sistemas de irrigação por sulcos e constitui um recurso didático para disciplinas de irrigação. Foi desenvolvido em Visual Basic para plataforma windows. O programa determina valores de distância de avanço da água no sulco, baseado numa solução explícita do modelo balanço volumétrico. Os formulários que simulam o avanço gera...