Publicações - engenharias
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AMARO BITTENCOURT, GUSTAVO;
PORTO DE SOUZA VANDENBERGHE, LUCIANA;
VALLADARES-DIESTRA, KIM KLEY;
ZWIERCHECZEWSKI DE OLIVEIRA, PRISCILLA;
CABRAL, PALOMA SOUZA;
CABRAL, PALOMA SOUZA
Palavra-chave:
Processos Biotecnologicos
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações
resumo ...
The main objective of this study was to develop a citric acid-catalyzed hydrothermal pretreatment to reach the maximum sugar recovery from soybean hull (SH), in the context of a biorefi nery concept. A central composite design (CCD) was used to optimize pretreatment conditions through the analysis of citric acid concentration, time, and temperature effects. Optimized conditions were defined as 3.56% w/w, 46.1 min, and 135.7 °C. From the solid fraction, 99.5% and 83.0% of glucose and xylose conversion, respectively, were obtained after enzymatic hydrolysis. Sugars were fermented successfully to L-lactic acid by Lactobacillus pentosus. In fact, SH hydrolysate presented no trace of inhibitor compounds, and glucose was totally consumed during fermentation. After 24 h of fermentation, a conversion rate of 0.724 g/g of sugars to lactic acid and 80.5% of the stoichiometric theoretical yield were reached. In addition, from the liquid fraction, 47.8 mg/g of xylooligosaccharides (XOS) was produced. This work demonstrates the potential of SH to be exploited as feedstock, with mild and efficient pretreatment process, for medium- to high-value bioproducts production in biorefineries.
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ABBAS, MUHAMMAD SUBTAIN;
YANG, YAJUAN;
ZHANG, QUANXI;
GUO, DONGGANG;
Ana Flavia Locateli Godoi;
Ricardo Henrique Moreton Godoi;
GENG, HONG
Palavra-chave:
salt lake aerosol;
climate change;
chemical composition;
health impacts
resumo ...
Salt Lakes, having a salt concentration higher than that of seawater and hosting unique extremophiles, are predominantly located in drought-prone zones worldwide, accumulating diverse salts and continuously emitting salt dust or aerosols. However, knowledge on emission, chemical composition, and health impacts of Salt Lake aerosols under climate change is scarce. This review delves into the intricate dynamics of Salt Lake aerosols in the context of climate change, pointing out that, as global warming develops and weather patterns shift, Salt Lakes undergo notable changes in water levels, salinity, and overall hydrological balance, leading to a significant alteration of Salt Lake aerosols in generation and emission patterns, physicochemical characteristics, and transportation. Linked to rising temperatures and intensified evaporation, a marked increase will occur in aerosol emissions from breaking waves on the Salt Lake surface and in saline dust emission from dry lakebeds. The hygroscopic nature of these aerosols, coupled with the emission of sulfate aerosols, will impart light-scattering properties and a cooling effect. The rising temperature and wind speed; increase in extreme weather in regard to the number of events; and blooms of aquatic microorganisms, phytoplankton, and artemia salina in and around Salt Lakes, will lead to the release of more organic substances or biogenic compounds, which contribute to the alteration of saline aerosols in regard to their quantitative and chemical composition. Although the inhalation of saline aerosols from Salt Lakes and fine salt particles suspended in the air due to salt dust storms raises potential health concerns, particularly causing respiratory and cardiovascular disease and leading to eye and skin discomfort, rock salt aerosol therapy is proved to be a good treatment and rehabilitation method for the prevention and treatment of pneumoconiosis and chronic obstructive pulmonary disease (COPD). It is implied that the Salt Lake aerosols, at a certain exposure concentration, likely can delay the pathogenesis of silicosis by regulating oxidative stress and reducing interstitial fibrosis of the lungs. It emphasizes the interconnectedness of climate changes, chemical composition, and health aspects, advocating for a comprehensive and practical approach to address the challenges faced by Salt Lake aerosols in an ever-changing global climate.
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DA COSTA, GABRIELA;
PAULIQUEVIS, THEOTONIO;
HEISE, EDUARDO FERREIRA JOSÉ;
Potgieter-Vermaak, Sanja;
Ana Flavia Locateli Godoi;
YAMAMOTO, CARLOS ITSUO;
DOS SANTOS-SILVA, JÉSSICA CAROLINE;
Ricardo Henrique Moreton Godoi
Palavra-chave:
COVID 19;
particulate matter;
low cost sensors;
Air pollution;
spatialization
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Engenharia Ambiental
resumo ...
Brazil has experienced one of the highest COVID-19 fatality rates globally. While numerous studies have explored the potential connection between air pollution, specifically fine particulate matter (PM2.5), and the exacerbation of SARS-CoV-2 infection, the majority of this research has been conducted in foreign regions—Europe, the United States, and China—correlating generalized pollution levels with health-related scopes. In this study, our objective is to investigate the localized connection between exposure to air pollution exposure and its health implications within a specific Brazilian municipality, focusing on COVID-19 susceptibility. Our investigation involves assessing pollution levels through spatial interpolation of in situ PM2.5 measurements. A network of affordable sensors collected data across 9 regions in Curitiba, as well as its metropolitan counterpart, Araucaria. Our findings distinctly reveal a significant positive correlation (with r-values reaching up to 0.36, p-value < 0.01) between regions characterized by higher levels of pollution, particularly during the winter months (with r-values peaking at 0.40, p-value < 0.05), with both COVID-19 mortality and incidence rates. This correlation gains added significance due to the intricate interplay between urban atmospheric pollution and regional human development indices. Notably, heightened pollution aligns with industrial hubs and intensified vehicular activity. The spatial analysis performed in this study assumes a pivotal role by identifying priority regions that require targeted action post-COVID. By comprehending the localized dynamics between air pollution and its health repercussions, tailored strategies can be implemented to alleviate these effects and ensure the well-being of the public.
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LUZ, ALINE R.;
de Lima, Gabriel Goetten;
KASIOROWSKI, TUANY;
G. B. de Souza;
Carlos Maurício Lepienski;
GRANDINI, CARLOS R.;
KUROMOTO, NEIDE K.;
ALVES, ANA PAULA R.
Palavra-chave:
biomateriais;
TITÂNIO
Áreas do conhecimento:
Engenharias; Engenharia de Materiais e Metalúrgica; BIOMATERIAIS
resumo ...
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AQUINO, CYNTIA CRISTINNE CORRÊA BAIA DE;
Thaís Marzalek Blasi;
UNSIHUAY-VILA, CLODOMIRO;
FERNANDES, THELMA SOLANGE PIAZZA;
PINTO, RAFAEL SILVA;
LARA FILHO, MAURO OBLADEN DE;
Alexandre Rasi Aoki;
TABARRO, FABRÍCIO HENRIQUE;
SANTOS, RODRIGO BRAUN DOS
Palavra-chave:
Microgrid;
otimização
Áreas do conhecimento:
Engenharias; Microrredes;
Engenharias; Engenharia Elétrica; Otimização de Sistemas Elétricos
resumo ...
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SCHARF, HENRY PETERSON;
CAMBRAIA, HERALDO NELIO;
Dalberto Dias da Costa
Palavra-chave:
machining;
processamento de imagens;
Monitoramento;
Furação
Áreas do conhecimento:
Engenharias; Engenharia Mecânica; Processos de Fabricação; Processos de Fabricação, Seleção Econômica
resumo ...
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DO CARMO, WESLEY P.;
Alexandre Ferreira Santos;
LENZI, MARCELO KAMINSKI;
Fortuny, Montserrat;
LENZI, ERVIN K.
Palavra-chave:
Petróleo;
Reologia;
Cálculo Fracionário
Áreas do conhecimento:
Engenharias; Operações Industriais e Equipamentos para Engenharia Química;
Engenharias; Engenharia Química; Processos Industriais de Engenharia Química; Processos Biotecnológicos
resumo ...
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DOS SANTOS-SILVA, JÉSSICA CAROLINE;
DE SOUZA, RODRIGO AUGUSTO FERREIRA;
Carlos Itsuo Yamamoto;
GODOI, RICARDO HENRIQUE MORETON;
Potgieter-Vermaak, Sanja;
MEDEIROS, SANDRA HELENA WESTRUPP;
DA SILVA, LUIZ VITOR;
FERREIRA, DANIELLI VENTURA;
MOREIRA, CAMILA ARIELE BUFATO;
DE SOUZA ZORZENÃO, PRISCILA CAROLINE;
PAULIQUEVIS, THEOTONIO;
GODOI, ANA FLAVIA LOCATELI
Palavra-chave:
Air pollution;
PM 2,5
Áreas do conhecimento:
Engenharias; Engenharia Química; Ambiental
resumo ...
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DOS SANTOS-SILVA, JÉSSICA CAROLINE;
DE SOUZA, RODRIGO AUGUSTO FERREIRA;
YAMAMOTO, CARLOS ITSUO;
Ricardo Henrique Moreton Godoi;
Potgieter-Vermaak, Sanja;
MEDEIROS, SANDRA HELENA WESTRUPP;
DA SILVA, LUIZ VITOR;
FERREIRA, DANIELLI VENTURA;
MOREIRA, CAMILA ARIELE BUFATO;
DE SOUZA ZORZENÃO, PRISCILA CAROLINE;
PAULIQUEVIS, THEOTONIO;
Ana Flavia Locateli Godoi
Palavra-chave:
PM2.5;
heavy metals;
Health risks;
Meteorological conditions;
Development zoning
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Engenharia Ambiental
resumo ...
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ACOSTA, EILEEN ANDREA;
FERREIRA, DANIELI MARA;
FERREIRA, ARTHUR HUMBERTO ROCHA;
NOWATZKI, ALEXEI;
LASSEN, ALANA LOUISE WERNECK;
Regina Tiemy Kishi;
SOUZA, MARCELO LUIZ DE;
PEREIRA, GABRIEL HENRIQUE DE ALMEIDA;
BLENINGER, TOBIAS BERNWARD;
Cristovão Vicente Scapulatempo Fernandes;
GOULART, CAMILA BERGMANN;
CARVALHO, JOÃO MARCOS;
POLLI, BRUNA ARCIE
Palavra-chave:
Diffuse Pollution
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Recursos Hídricos; Planejamento Integrado dos Recursos Hídricos
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