Publicações - engenharias
|
MOREIRA, CAMILA ARIELLE BUFATO;
REIS, RODRIGO ARANTES;
OLIVEIRA, ANDREA;
GODOI, RICARDO HENRIQUE MORETON;
POLEZER, GABRIELA;
DOS SANTOS SILVA, JÉSSICA CAROLINE;
DE SOUZA ZORZENÃO, PRISCILA CAROLINE;
GODOI, ANA FLAVIA LOCATELI;
HUERGO, LUCIANO FERNANDES;
Carlos Itsuo Yamamoto;
DE SOUZA TADANO, YARA;
Potgieter-Vermaak, Sanja
Palavra-chave:
Air pollution
Áreas do conhecimento:
Engenharias; Engenharia Química; Ambiental
resumo ...
|
|
MOREIRA, CAMILA ARIELLE BUFATO;
REIS, RODRIGO ARANTES;
OLIVEIRA, ANDREA;
Ricardo Henrique Moreton Godoi;
POLEZER, GABRIELA;
DOS SANTOS SILVA, JÉSSICA CAROLINE;
DE SOUZA ZORZENÃO, PRISCILA CAROLINE;
Ana Flavia Locateli Godoi;
HUERGO, LUCIANO FERNANDES;
YAMAMOTO, CARLOS ITSUO;
DE SOUZA TADANO, YARA;
Potgieter-Vermaak, Sanja
Palavra-chave:
marine fuel oil;
sulfur limits;
shipping emissions;
port pollution emissions;
Environmental Impact Analysis;
PM2.5
Áreas do conhecimento:
Engenharias; Engenharia Sanitária; Engenharia Ambiental
resumo ...
The world ocean fleet consumes around 4.3 million barrels of heavy fuel oil (HFO) daily, releasing large amounts of sulfur-enriched gaseous and particulate pollutants into the atmosphere. The International Maritime Organization (IMO) has set new sulfur content limit values for HFO under the Global Sulfur Cap 2020 (GSC-2020) program to reduce its environmental and public health impact. This study assesses the environmental benefits of the sulfur content limit values for heavy fuel oil set by the IMO on sulfur emissions, trace element concentrations, and ship related PM2.5 pollution at Paranaguá, the largest grain port in Latin America. X-ray Fluorescence analysis revealed that the concentrations of vanadium (V) and nickel (Ni) in PM2.5 (i.e., finer particulate matter), which are prevalent trace elements in ship exhaust emissions, decreased significantly from 25.4 ng m− 3 and 5.8 ng m− 3 in 2019 to 3.5 ng m− 3 and 2.2 ng m− 3 in 2020, respectively. The V/Ni ratio also changed from 4.3 in 2019 to 1.8 in 2020, suggesting significant changes in the signature of marine vessel emission. Sulfur emissions also decreased, with average concentrations of 2.0 µg m− 3 in 2019 and 1.2 µg m− 3 in 2020. The primary PM2.5 concentration, attributed to ship emissions using V as a tracer, was reduced from ~ 80% in 2019 (mean = 35.8%) to less than 5% (mean = 4.9%) in 2020. Inhalation exposure to V and Ni in PM2.5 showed a decrease in the hazard quotient (HQ) and hazard index (HI) in 2020 compared to 2019, indicating potential health benefits. Our findings underscore the need for more robust international shipping policies prioritizing health objectives and reducing greenhouse gas emissions concurrently. Despite the significant health benefits associated with the implementation of low-sulfur fuels in global shipping, there remains a need for further investigation into the long-term effects of these fuels on air quality and human health. GSC-2020 limits sulfur in HFO, reducing environmental and health impacts. Paranaguá Port air quality shows global emission changes assessed before and after. GSC-2020. PM2.5 sees lower V and Ni in PM2.5, indicating a marine emission shift. Lower V, Ni, and sulfur emissions reduce global health risks from maritime. pollution. GSC-2020 sets new emission standards, impacting policies globally.
|
|
CRUZ, JULIANE RIBEIRO DA;
SOUSA, JURANDIR MARCOS SÁ DE;
FERREIRA, HENRIQUE SANTOS;
THIESEN JUNIOR, ANSELMO;
Cláudia Eliana Bruno Marino
Palavra-chave:
resistência à corrosão;
técnicas eletroquímicas;
inconel;
reuso
Áreas do conhecimento:
Engenharias; Engenharia Elétrica; Telecomunicações;
Engenharias; Engenharia de Materiais e Metalúrgica; Metalurgia Física; Corrosão
resumo ...
|
|
SOUZA ZORZENÃO, PRISCILA CAROLINE DE;
SANTOS SILVA, JÉSSICA CAROLINE DOS;
MOREIRA, CAMILA ARIELLE BUFATO;
MILLA PINTO, VICTÓRIA;
DE SOUZA TADANO, YARA;
Carlos Itsuo Yamamoto;
GODOI, RICARDO HENRIQUE MORETON
Palavra-chave:
Air pollution
Áreas do conhecimento:
Engenharias; Engenharia Química; Ambiental
resumo ...
|
|
NEVES, CAMILA VARGAS;
Módenes, A. N.;
Fabiano Bisinella Scheufele;
ROCHA, RAQUEL PINTO;
PEREIRA, MANUEL FERNANDO RIBEIRO;
FIGUEIREDO, JOSÉ LUÍS;
BORBA, CARLOS EDUARDO
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,
v. 686,
p. 133372
2024
DOI
Home page
Palavra-chave:
Dessulfurização;
Compostos tiofênicos
resumo ...
|
|
Paula Sacchelli Pacheco;
Sonia Faria Zawadski;
Daniel Eiras
Palavra-chave:
Mixed matrix membranes;
gas separation;
ZIF-67;
PEBAX® MH-1657
resumo ...
This study synthesized mixed matrix membranes (MMMs) using PEBAX® MH-1657 and ZIF-67 with...
|
|
FRARE, ANDREZA;
ANGULSKI DA LUZ, CAROLINE;
Marcelo Henrique Farias de Medeiros
Palavra-chave:
Cimento álcali-ativado;
Metacaulim;
Cinza de Casca de arroz
Áreas do conhecimento:
Engenharias; Engenharia Civil; Inovação
resumo ...
|
|
Jóse Viriato Coelho Vargas;
JACOB-FURLAN, BEATRIZ;
SILVA RIBEIRO GONÇALVES, RAFAEL;
MILÉO TAHER, DHYOGO;
LANGER, MARCELO;
AUGUSTO FERRAZ, FERNANDO;
Wellington Balmant;
Viriato Coelho Vargas, José;
BELLIN MARIANO, ANDRÉ
Palavra-chave:
sustainable electricity generation;
Incineration
Áreas do conhecimento:
Engenharias; Engenharia Mecânica; Engenharia Térmica; Aproveitamento da Energia
resumo ...
|
|
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.
|
|
VALT, RENATA BACHMANN GUIMARÃES;
PIRES, CAROLINA MOCELIN GOMES;
JERÔNIMO DE SANTANA PONTE, MARIA JOSÉ;
Haroldo de Ara[ujo Ponte
Palavra-chave:
Catalisadores de equilibrio;
Eletroremediação;
Recuperação de Lantânio
Áreas do conhecimento:
Engenharias; Tecnologia Química; Tratamentos e Aproveitamento de Rejeitos;
Engenharias; Engenharia Química; Tecnologia Química; Petróleo e Petroquímica
resumo ...
|
