About
48
Publications
8,150
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
867
Citations
Introduction
Current institution
Education
September 2017 - August 2021
February 2016 - August 2017
February 2011 - December 2015
Federal University of Fronteira Sul
Field of study
- Environmental and Sanitary Engineering
Publications
Publications (48)
The objective of this study is to develop beeswax-based solid lipid nanoparticles (SLNs) containing meglumine antimoniate (MA), curcumin (CUR), and 4-nitrochalcone (4NC) and evaluate their physicochemical characteristics, encapsulation efficiency, morphology, thermal properties, and in vitro leishmanicidal activity against promastigote forms of L....
Steam gasification is a highly effective method for producing hydrogen (H 2) and represents a key valorization route for agro-industrial residues. In this scenario, the objective of the current study was to investigate the effect of torrefaction on the steam gasification of low-value agro-industrial residues, focusing on enhancing H 2 content in sy...
This paper proposes an innovative technology for desalinating brackish water and seawater using a multi-tube type falling film distillation column integrated with a biphasic thermosyphon. Based on the literature survey, this proposal has not been previously explored. In this study, the viability of the pilot-scale application of this technology for...
This work presents an evaluation of the industrial residue from exhausted black wattle bark after the extraction of tannin for use as a new feedstock for biofuel production, without competing with food production. The physicochemical and thermodynamic properties, the influence of temperature on pyrolysis products and multicomponent kinetics were ev...
Malt bagasse is a by-product of little commercial value in the brewing industry. Under this scenario, the current study represents the first investigation aiming to determine the kinetic triplet and thermodynamic parameters for malt bagasse pyrolysis using a multi-component kinetic approach to elucidate its bioenergy prospects. The pyrolysis progre...
In this work, the effect of the sonification time on the stability of styrene and styrene/butyl acrylate (50/50) miniemulsions was investigated by centrifugation. Octadecyl methacrylate (ODMA) miniemulsion was used as a comparative system owing to its degradation by monomer diffusion being minimum. The droplet and particle size distributions were a...
Energy-saving distillation columns are currently of significant research interest for ethanol-water separation. The coupling of a falling film distillation column with a biphasic thermosyphon apparatus for ethanol-water separation can yield remarkable energy and space savings. In the pursuit of maturing the thermally efficient falling film distilla...
The first study in the literature on the pyrolysis of pequi (Caryocar brasiliense) residues, focusing on the kinetic triplet, thermodynamic parameters, and characterization of volatile products utilizing TGA and Py−GC/MS techniques, is presented in this paper. Slow pyrolysis experiments were conducted on a thermogravimetric scale in a controlled at...
The present study's motivation and novelty are related to the potential of raw (RCNS) and pressed (PCNS) cashew nutshell residues for producing bioenergy and renewable chemicals through their physicochemical characterization and pyrolysis processing (multicomponent kinetic analysis, thermodynamic study, and volatile product analysis). A thermogravi...
This work reports experimental findings for pyrolysis of the royal palm tree (RPT) waste, particularly emphasizing the kinetic triplet, thermodynamic parameters, and characterization of volatile products. Pyrolysis experiments were conducted in a thermogravimetric analyzer and an analytical pyrolyzer coupled with a gas chromatography-mass spectrome...
Realizou-se uma investigação do potencial do resíduo de sementes do butiá (RSB) como matéria-prima para obtenção de produtos químicos renováveis por meio de análise térmica e identificação simultânea dos produtos voláteis resultantes da pirólise, utilizando a técnica TGA−FTIR. Identificaram-se compostos aromáticos, bem como aldeídos, cetonas, éster...
A análise TGA−FTIR indica que ácido propanóico, metanol, acetaldeído, éter dimetílico e etanol são liberados abaixo de 650 K ao utilizar o resíduo de sementes de manga para pirólise. Os resultados deste estudo possuem uma relevância para o aproveitamento do resíduo de sementes de manga como uma matéria-prima de baixo custo para a pirólise, com pote...
The abundant generation of pokan (Citrus reticulata) peel, passion fruit (Passiflora edulis), and pineapple (Ananas comosus) peel wastes in Brazil, estimated at 1.01 million tons, presents an opportunity for exploration. Based on our prior studies and relevant literature, these Brazilian agro-wastes possess significant potential due to their compos...
Energy cane is a genotype derived from species of sugarcane (Saccharum officinarum and Saccharum spontaneum) with a lower sucrose content and higher fiber content for bioenergy purposes. It is a rustic plant that demands less fertile soils that do not compete with food crops. In this work, an analysis of energy cane bagasse pyrolysis products was p...
The study aimed to establish a comprehensive understanding of the photocatalytic process and optimize the reactor design for efficient ethylene regulation to improve the shelf-life of fruits and vegetables. For this, it was performed 2D computational fluid dynamics modeling at two different reactor geometry (conventional cylindric reactor and annul...
An investigation was conducted to elucidate the bioenergy potential of mango seed waste through pyrolysis kinetics, thermodynamics parameters of activation, and analysis of evolved volatiles. Experiments were performed in a thermogravimetric analyzer (TGA) coupled with a Fourier transform infrared (FTIR) spectrometer. The pyrolysis behavior was ass...
The current study aims to investigate the physicochemical properties and pyrolysis characteristics (kinetic triplet and thermodynamic parameters) of the invasive grass Cenchrus echinatus to assess its bioenergy potential. A thermogravimetric analyzer was employed to obtain the pyrolysis behavior of the grass under slow non-isothermal conditions. Fi...
Uma vez que o petróleo ainda é a principal fonte de energia mundial, suas atividades de extração e produção geram elevados volumes de efluentes líquidos. o gerenciamento dessa enorme quantidade de efluentes líquidos consiste em um grande desafio para as empresas petrolíferas. Geralmente, a água produzida oriunda do processo de recuperação secundári...
The present paper aims to elucidate the bioenergy potential of the invasive grass Eleusine indica based on its physicochemical characterization, pyrolysis kinetics, and thermodynamic parameters. The pyrolytic behavior of E. indica acquired from non-isothermal thermogravimetric experiments was kinetically represented by three independent parallel re...
Two low-value agro-industrial residues, passion fruit peel waste (PF) and pineapple peel waste (PA), were considered in this study as feedstocks to produce solid biofuels by torrefaction. The experiments were conducted in a macro-TGA with GC-TCD/FID analysis to investigate their torrefaction characteristics. The GC-TCD/FID analysis allowed quantify...
A técnica simultânea de TGA-FTIR mostrou que os produtos voláteis evoluídos a partir da
pirólise da casca do cupuaçu foram dominados por álcoois, aldeídos, cetonas, ácidos
orgânicos e hidrocarbonetos aromáticos/alifáticos, apoiando a utilidade da casca de
cupuaçu como uma fonte potencial para a produção de produtos químicos de base
renovável. Em re...
O presente estudo teve por objetivo avaliar a potencialidade energética e a combustibilidade da borra de erva mate visando sua valorização. Os resultados de caracterização confirmaram a adequação da borra de erva mate como matéria prima para a combustão com um considerável conteúdo energético, e baixo conteúdo de cinzas e de enxofre. Os índices de...
A sociedade e a economia têm dependido cada vez mais da energia, em que o grau de seu consumo dos principais indicadores para o desenvolvimento de uma sociedade. O ápice da dependência energética começou após a descoberta e aplicação do petróleo e seus derivados pela sociedade. Porém, sabe-se que o consumo do petróleo (combustível fóssil) sem o dev...
Este trabalho tem como objetivo investigar as características energéticas de Andropogon bicornis, Eupatorium maximilianii e Sida rhombifolia, plantas invasoras, para identificar seu potencial como recursos energéticos renováveis. A este respeito, uma caracterização físico-química detalhada foi realizada e comparada com uma biomassa típica para fins...
The pyrolysis of butia seed waste (BSW) was investigated under a thermogravimetric scale at multiples heating rates (5–40 °C min−1) in a nitrogen atmosphere. First, the pyrolysis behavior of BSW was deconvoluted into four independent reactions using the Asym2Sig fitting function. The kinetic triplets (activation energies, pre-exponential factors, a...
This research aimed to investigate the physicochemical properties and the pyrolysis performance of cupuassu shell (Theobroma grandiflorum) under a thermogravimetric scale. The pyrolysis experiments were carried out using a pure nitrogen atmosphere and at five heating rates (5, 10, 20, 30, and 40 K min⁻¹). The pyrolysis kinetic triplet was calculate...
This study presents the first attempt to focus on the cocoa shell pyrolysis in terms of kinetic triplet, thermodynamic parameters, and evolved volatile analysis using the TGA-FTIR technique. For reliable interpretation of the multistep pyrolysis of cocoa shell, the multiple kinetic triplets were adequately estimated by a combined kinetic procedure...
The present study attempts to explore the energy potential of smoked cigarette butts (SCB) through pyrolysis. For the first time, the pyrolysis characteristics, including the kinetic triplet and the thermodynamic parameters, were investigated using non-isothermal thermogravimetry. Firstly, three pseudo-components were successfully deconvoluted from...
This work reports the first detailed investigation of the physicochemical properties of the pecan nutshell waste (PNS) and its suitability for pyrolytic conversion into bioenergy and bio-based chemicals based on the kinetic triplet, thermodynamic parameters, and Py-GC/MS analysis. The pyrolysis behavior of PNS was assessed using a thermogravimetric...
Catole coconut (Syagrus cearensis) is produced in abundance in the Northeastern region of Brazil, but still remains relatively unexploited for bioenergy purposes because of the little relevant scientific information available. In this context, this study aims to investigate the kinetics and thermodynamics that describe the pyrolysis of catole cocon...
This work provides the first insights on the bioenergy potential of macauba endocarp (Acrocomia aculeate) based on the pyrolysis kinetics and thermodynamic parameters of activation. The kinetic triplet was obtained from non-isothermal thermogravimetric data by using four isoconversional methods, kinetic compensation effect, and master-plots method....
In this work, xanthan gum-based films incorporating clove, cinnamon, and oregano essential oils (EO) were proposed as potential natural antimicrobial films, aiming “post-dipping” mastitis prevention and, consequently, to reduce the foodborne pathogens in milk. The antimicrobial activity of the film-forming suspensions was tested against on standard...
O Brasil e as demais regiões áridas e semiáridas do mundo sofrem limitações em seu desenvolvimento urbano nos setores agrícolas e industriais, ocasionadas pela escassez da água. O reúso de águas, além de auxiliar na preservação das águas de melhor qualidade para o consumo humano, é também uma forma de mitigação de contaminação de corpos receptores....
In this work, an environmentally friendly and value-added technique was employed to obtain polystyrene (PS) nanoparticles from expanded polystyrene (EPS) waste. The waste was dissolved in ethyl acetate and nanoprecipitated in ethyl alcohol, which are green and renewable solvents. The EPS concentration, stirring speed and solvent/non-solvent ratio (...
Clean thermochemical conversion of lignocellulosic residues is particularly interesting for both bioenergy production and environmental protection. For this reason, the novelty of this study is to present tamarind residues (husks and seeds) from the tamarind fruit processing industry as new prospective feedstocks for bioenergy production considerin...
This study investigated recycling of expanded polystyrene (EPS) waste in a closed-loop design using the dissolution technique. The objective is to dissolve a maximum rate of EPS waste in styrene (its monomer), followed by suspension polymerization of this solution to incorporate the monomer (the solvent) in the polymer chain to avoid the need to se...
This work aims to investigate the energy-related characteristics of apple bagasse, orange bagasse and cashew-apple bagasse to identify their potential as bioenergy feedstocks. For this, a detailed characterization was performed, including proximate analysis, ultimate analysis, atomic molar ratio, heating values, chemical composition, bulk density,...
Around 2.96 million tons of potential feedstocks are generated annually in the form of jackfruit waste, including peels (JP) and seeds (JS). This study assessed the suitability of JP and JS as new feedstocks for combustion and their preliminary potential for bioenergy considering their physicochemical properties, bioenergy indicators, combustion be...
Pyrolysis is widely used as a waste treatment technology (thermal recycling), which can be an alternative to disposal in landfills. To investigate the applicability of pyrolysis to recovery energy from plastic solid waste (PSW), the pyrolysis of PSW was performed in a thermogravimetric analyzer under an inert condition. The PSW samples were heated...
This study investigated the dissolution of adhesive resins present in polyolefin films that cause plastic materials to adhere to each other. The process of dissolution was made by the use of ethyl acetate and followed by separation through the sink-float process. The objective was to separate and characterize polyolefin films from plastic solid was...
An environmentally friendly and value-added method for recycling polymeric waste was developed in this work. A green and renewable solvent and non-solvent pair was used to obtain Polystyrene (PS) nanoparticles by means of the nanoprecipitation technique, using Expanded Polystyrene (EPS). EPS concentration, stirring speed and solvent / non-solvent r...
This study evaluated the thermal, morphological, chemical, and mechanical properties of virgin and recycled polystyrene. The recycling process was carried out by dissolution of polystyrene (extruded and crystal) in ethyl acetate, followed by two processes for solvent removal: vaporization by direct contact with water at 85 °C in a tubular evaporato...
For accurate functioning of the rainwater harvesting system in household, it is essential to determine the reservoir capacity; therefore, it must be dimensioned based on the assessment of the level of demand and efficiency. However, the cistern dimensions became very large and high cost when considering that the cistern must remain full most of the...
The storage reservoir is an essential item of rainwater harvesting system and its design depends on catchments characteristics, local rainfall and demands. However, considering that the reservoir should remain full most of the time, its dimensions become too exaggerated and prohibitive investment for the majority of the population. There are severa...
Para o adequado funcionamento do sistema de aproveitamento de água da chuva em residências unifamiliares,determinar a capacidade de reservação é fundamental e, para tal, deve ser dimensionada com base na avaliação do nível de atendimento à demanda.No entanto, ao considerar que o reservatório deve
permanecer cheio a maior parte do tempo para atende...
