Aplicação do processo eletrolítico no tratamento de efluentes de uma indústria de recuperação de filmes plásticos pós-consumo

Pós-graduação em Engenharia Civil e Ambiental - FEB

Emprego do extrato de moringa (Moringa oleífera Lamarck) na clarificação do caldo de cana para produção de açúcar

Pós-graduação em Microbiologia Agropecuária - FCAV

Titanato de Bário e cálcio: influência da substituição parcial d modificador de rede nas propriedades fotoluminescentes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Cálculo e análise de efeitos de campo magnético nos estados eletrônicos de impurezas rasas em materiais semicondutores

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Investigação das propriedades ópticas, elétricas e estruturais em ametista

Pós-graduação em Ciência e Tecnologia de Materiais - FC

Estudos da preparação de superfície da liga AA6063T5 e do desenvolvimento de revestimentos híbridos orgânico-inorgânicos a base de siloxano-PMMA para aplicação anticorrosiva

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Polihidroxialcanoatos (PHAs): bioprospecção de micro-organismos e produção a partir de glicerol

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Caracterização e estudo do comportamento térmico de ligninas extraídas de bagaço de cana-de-açúcar e resíduos sólidos urbanos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de métodos analiticos para determinação de 'CD', 'CU','NI'e 'PB' em biodiesel por espectrometria de absorção atômica em forno de grafite

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Hidroxicarbonato de gadolínio ativado com európio ou térbio trivalentes como precursor de óxidos, oxissulfetos e silicatos luminescentes

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Harvest managements and cultural practices in sugarcane

The presence of trash from the mechanical harvest of green cane on sugarcane plantations promotes changes in the agricultural management, for example, in the mechanical cultural practices of ratoon cane in-between the rows and nitrogen (N) fertilization. The goal of this study was to evaluate the performance of sugarcane in different harvest systems, associated to the mechanical cultural practices in interrows and N rates. The study was carried out on a sugarcane plantation in Sales Oliveira, São Paulo, Brazil, with the sugarcane variety SP81-3250, on soil classified as Acrudox, in a randomized block design with split-split plots and four replications. The main treatments consisted of harvest systems (harvesting green cane or burnt cane), the secondary treatment consisted of the mechanical cultural practices in the interrows and the tertiary treatments were N rates (0, 30, 60, 90, 120 and 160 kg ha-1), using ammonium nitrate (33 % N) as N source. The harvest systems did not differ in sugarcane yield (tons of cane per hectare - TCH), but in burnt cane, the pol percent and total sugar recovery (TSR) were higher. This could be explained by the higher quantity of plant impurities in the harvested raw material in the system without burning, which reduces the processing quality. Mechanical cultural practices in the interrows after harvest had no effect on cane yield and sugar quality, indicating that this operation can be omitted in areas with mechanical harvesting. The application of N fertilizer at rates of 88 and 144 kg ha-1 N, respectively, increased stalk height and TCH quadratically to the highest values for these variables. For the sugar yield per hectare (in pol %), N fertilization induced a linear increase.

Use of Moringa oleífera Lamarck leaf extract as sugarcane juice clarifier: effects on clarifed juice and sugar

The objective of this study was to evaluate the effect of Moringa oleifera Lam. leaf extract on the sedimentation of impurities in the treatment of sugarcane juice and the effects on sugar quality and on the clarified juice. The experimental design used was a 4x2 factorial arrangement with four replications. The main treatments performed included the extracted original sugarcane juice, the synthetic polyelectrolyte (Flomex 9076), the leaf extract, and a control. The secondary treatments consisted of the sugarcane varieties RB92579 and RB867515. The clarification process used was simple defecation, in which the flocculating agents and the juice, limed and heated, were poured simultaneously into a decanter. The microbiological and chemico-technological characteristics of the extracted and clarified juices were evaluated. The clarified juice was concentrated up to 60° Brix (syrup) and subjected to boiling in a pilot pan using seeds to perform the graining: The sugar was recovered by centrifugation and analyzed for microbiological and chemico-technological characteristics. It was concluded that the use of the Moringa oleifera Lam. leaves extract resulted in a better quality of clarified juice and sugar.

Desempenho operacional de duas enfardadoras de fardos prismáticos retangulares no palhiço de cana-de-açúcar

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

Electronic transport in patterned graphene nanoroads

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Thermal Characteristics of Lignin Residue from Industrial Processes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)