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Mostrando 1-12 de 236 artigos, teses e dissertações.
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1. Sorção de fósforo de efluente doméstico tratado em lodo de estação de tratamento de água e aplicação do resíduo em solo cultivado com milho
RESUMO Estudos de remoção de fósforo de efluentes por sorção em resíduos têm ganhado destaque na literatura. Entre estes resíduos, destaca-se o lodo de estação de tratamento de água rico em oxi-hidróxidos de alumínio e ferro. O presente estudo teve como objetivos remover, por sorção, fosfato de esgoto sanitário em reator de escoamento ascende
Engenharia Sanitaria e Ambiental. Publicado em: 2022
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2. Comparison between barley malt protein quantification methods
Abstract Brazil imports about 60% of all the malt used by the brewing industry which is spread throughout the country. Even though it is an agricultural country, only a small portion of the barley production has the characteristics to produce barley malt for brewing. Seeking supply to the ever-growing demand and reducing the dependency on other countries and
Food Sci. Technol. Publicado em: 2021-06
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3. Synthesis, Characterization, Spectroelectrochemical, Photophysical and HSA-Binding Properties of Novel and Versatile meso-Tetra(4-pyridylvinylphenyl)porphyrins Coordinated to Ruthenium(II)-Polypyridyl Derivatives
The free-base meso-tetra(4-pyridylvinylphenyl)porphyrin (1a) and its zinc(II) complex were synthesized and then functionalized with [Ru(bpy)2Cl]+ units (2a and 2b) via conventional methods and evaluated in terms of photophysical, electrochemical and biological aspects. All porphyrins present moderate singlet oxygen production and fluorescence quantum yield,
J. Braz. Chem. Soc.. Publicado em: 2020-11
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4. Dinâmica do fósforo em sistemas alagados construídos tratando água residuária da suinocultura
RESUMO Neste estudo, teve-se por objetivo avaliar a remoção de fósforo e obter coeficientes cinéticos em sistemas alagados construídos (SAC) utilizados no tratamento das águas residuárias da suinocultura (ARS), sob diferentes taxas de carregamento de fósforo (TCP). Para isso, foram utilizados oito tanques de 2,0 × 0,5 × 0,6 m. Em SAC3, SAC5, SAC7 e
Eng. Sanit. Ambient.. Publicado em: 2020-01
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5. Performance of Avocado Seed Activated Carbon as Adsorbent for Highly Sensitive Determination of Cd Using a Flow Injection System Online Coupled to TS-FF-AAS
A flow-injection preconcentration system using detection by the thermospray flame furnace atomic absorption spectrometry (FIA-TS-FF-AAS) is proposed. Cd2+ are adsorbed on avocado seed activated carbon (ASAC) packed into a cylindrical mini-column and eluted using HCl solutions for the detection system. A 25–1 fractional factorial and Doehlert matrix design
J. Braz. Chem. Soc.. Publicado em: 2020-01
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6. NUTRIENT REMOVAL FROM SWINE WASTEWATER IN A COMBINED VERTICAL AND HORIZONTAL FLOW CONSTRUCTED WETLAND SYSTEM
ABSTRACT This study aimed to assess the performance of a combined vertical flow (VFCW) and horizontal subsurface-flow (HFCW) constructed wetland systems built on a pilot scale and submitted to different configurations and organic load application rates of pre-treated swine wastewater (SWW) in anaerobic systems on the nitrogen and phosphorus removal. The aver
Eng. Agríc.. Publicado em: 2018-06
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7. PERCOLATE QUALITY IN SOIL CULTIVATED WITH APPLICATION OF WASTEWATER FROM SWINE SLAUGHTERHOUSE AND DAIRY PRODUCTS
ABSTRACT The objective of this study was to evaluate the quality of the percolate in soil columns cultivated with Tiffon-grass 85 under different wastewater rates from swine slaughterhouse and dairy. The experiment was conducted at the Department of Engineering at the Federal University of Lavras, in PVC columns with 0.30 m of diameter and 1.2 m deep, filled
Eng. Agríc.. Publicado em: 2017-12
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8. CHEMICAL PROPERTIES OF SOIL FERTIRRIGATED WITH DAIRY AND SLAUGHTERHOUSE WASTEWATER
ABSTRACT The aim of this study was to evaluate the soil chemical properties submitted to fertigation with slaughterhouse (SW) and dairies (DW) wastewater. The experiment was conducted in the Environmental Engineering Center and Sanitary of UFLA/MG in PVC columns filled with Dark Red Latosol (Oxisol) and randomly distributed. The treatments applied with nitro
Eng. Agríc.. Publicado em: 2017-12
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9. Estudos hidrodinâmicos do escoamento em caixa de gordura empregada no tratamento preliminar dos efluentes de cozinha industrial
RESUMO Efluentes de cozinhas industriais se caracterizam pela geração de elevado teor de óleos e gorduras. Esses produtos notadamente causam sérios problemas ambientais, sendo obrigatória a instalação de unidades de pré-tratamento no local onde são gerados, e com isso surge a importância das caixas de gordura (CGs), destinadas a esse fim. O desempe
Eng. Sanit. Ambient.. Publicado em: 2017-10
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10. DETERMINAÇÃO RÁPIDA E SIMPLES DE CITRATO DE SILDENAFILA (VIAGRA® E GENÉRICOS) EMPREGANDO ELETRODO IMPRESSO DE CARBONO EM SISTEMAS FIA E BIA COM DETECÇÃO AMPEROMÉTRICA
This work presents two amperometric methods for Sildenafil Citrate (SC) determination in erectile dysfunction drugs (Viagra® and Generics), using Batch Injection Analysis (BIA) and Flow Injection Analysis (FIA) systems with a cell for Screen Printed Electrodes (SPE). In Britton- Robinson buffer solution (pH 2), the SC presented an irreversible anodic peak a
Quím. Nova. Publicado em: 2017-08
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11. PERFORMANCE OF TIFTON 85 GRASS UNDER FERTIRRIGATION WITH SLAUGHTERHOUSE WASTEWATER
ABSTRACT: The aim of this study was to evaluate the performance of Tifton 85 grass cultivated in soil columns and fertilized with different wastewater doses of swine slaughterhouse. The experiment was conducted in the Environmental Engineering Center and Sanitary of UFLA/MG in PVC columns filled with Dark Red Latosol (Oxisol) and randomly distributed. The tr
Eng. Agríc.. Publicado em: 2017-08
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12. Coagulação com semente de moringa oleifera preparada por diferentes métodos em águas com turbidez de 20 a 100 UNT
RESUMO A semente de Moringa oleifera é composta por proteínas catiônicas, podendo ser aplicada como eficiente coagulante na clarificação de águas para consumo humano. Objetivou-se identificar o melhor método de preparação de Moringa oleifera, o melhor tempo para sedimentação e a concentração ótima para diferentes valores de turbidez bruta. Para
Eng. Sanit. Ambient.. Publicado em: 2017-08