O Programa de Pós-Graduação em Engenharia e Ciências Mecânicas (Pós-ECM), da Universidade Federal de Santa Catarina (UFSC),torna público o processo seletivo para o preenchimento de vagas em disciplinas isoladas para o segundo semestre de 2020.
Edital nº 003-POSECM-2020 – Seleção Vagas isoladas 2020-2
COMO ESTA FORMAÇÃO PODE IMPACTAR NA SUA VIDA PROFISSIONAL E PESSOAL
PARTICIPE DO WEBINAR: Pós-graduação UFSC-Joinville
Dia 21 de outubro de 2020, quarta-feira.
Início 17 horas pelo link: https://meet.google.com/brx-mpqw-qco
Faça sua inscrição: https://1drv.ms/x/s!AvGxZ_hPBmwkioclPN0YRXOxWYascg?e=wWbmSr
Conteúdo da apresentação:
- Classificação dos cursos de pós-graduação no Brasil: Stricto sensu e Lato sensu. Funcionamento e formação em cada modalidade. Definições gerais de um trabalho científico. Prof. Dr. Adriano Fagali de Souza. Professor do curso.
- Apresentação do Curso de mestrado em Engenharia e Ciências Mecânicas da UFSC-Joinville. Prof. Dr. Régis Kovacs Scalice. Coordenador do PÓS-ECM.
- Apresentação do processo seletivo PÓS-ECM/UFSC. Prof. Dr. Claudimir Antonio Carminatti. Presidente da comissão de seleção PÓS-ECM.
Na sequencia haverá um fórum específico para eventuais interessados nas áreas:
Temas de pesquisa: Processos de fabricação (Indústria 4.0, sistemas computacionais CAx, usinagem, manufatura aditiva metálica, transformação de plásticos). Link da Sala: https://meet.google.com/omn-kfac-moa
Temas de pesquisa: Projeto Robusto de Produtos, Refrigeração e Condicionamento de Ar. Link da Sala: https://meet.google.com/som-npeu-xtd
Temas de pesquisa: Desenvolvimento de Produtos e Sistemas Produto-Serviço; Projeto Modular; Projeto para Manufatura Aditiva; Projeto para Meio-ambiente. Link da Sala: https://meet.google.com/mcq-auib-dmj
Temas de pesquisa: Microfluídica, tecnologias LabOnaChip, Petrofísica Digital, Escoamento de fluidos em meios porosos – Experimento e Simulação. Link da sala: https://meet.google.com/vfy-xjnb-ifa
Temas de pesquisa: Soldagem. Entrar em contato pelo e-mail (t.cunha@ufsc.br) para agendar horário.
O acadêmico Ricardo Brandes defendeu nesta terça-feira, dia 06 de outubro de 2020, seu doutorado na Université du Québec a Trois-Rivières – UQTR. Ricardo Brandes é egresso do Pós-ECM de 2017, tendo sido orientado pela Profa. Derce de Oliveira Souza Recouvreux. Sua graduação também foi na UFSC, em Engenharia de Materiais em 2012.
O trabalho, intitulado “Development of Sorbent Materials Using Chitosan and Phosphorylated Cellulose for the Removal of Toxic Contaminants from Wastewater” foi desenvolvido no programa de Doctorat En Sciences Et Génie Des Matériaux Lignocellulosiques da UQTR e orientado pelo Prof. Bruno Chabot.
Abstract
Water contamination is a growing worldwide concern due to its importance. The rapid growth of human population and global industrialization has resulted in the generation of larger amounts of wastewater containing various pollutants, among which toxic heavy metals. Toxic contaminants can cause serious problems for the environment and humans. Heavy metals are toxic and dangerous contaminants. Humans are exposed to heavy metals by consuming contaminated water, resulting in various important detrimental effects, such as cancer, organ damage, nervous system damage, and in extreme cases, death. To prevent detrimental environmental and human issues, heavy metal removal from wastewater is required. Tertiary wastewater treatment technologies for the removal of heavy metals have been developed and studied for several years. Adsorption is a tertiary treatment technology with excellent efficiency, favorable hydrodynamic, high flow rate, low cost, fast kinetic and reusability. Among the materials used for adsorption, activated carbon (AC) is the most employed. Adsorption is efficient for this purpose, but its application is limited by the high cost of adsorbent materials. Low cost adsorbents are required as more viable materials. Chitosan (CS), phosphorylated cellulose fibers (PCF) and phosphorylated cellulose derivatives are low cost adsorbent materials known for their high ability to adsorb contaminants and would be excellent alternatives for water remediation. Adsorbent materials with a large contact surface and electrospinning are considered an excellent choice for the production of adsorbent membranes because it is a process able to produce nanofibers with high specific surface area. Thus, this work aimed at protecting the environment and producing more efficient bio-adsorbent mats for the treatment of contaminants by adsorption. To reach this goal, low cost structured bio-adsorbent mats based on PCF/CS were developed with improved adsorption capacity towards ionic contaminants. Nonwoven PCF/CS nanofiber mats were produced by either casting or electrospinning. The thermal, chemical, electrical, mechanical and morphological properties of the media were evaluated. Batch adsorption trials were carried out using ionic metal contaminants. Kinetics and isotherm models were used to fit experimental results and thermodynamic properties were calculated. The reusability of the adsorbent media was determined after five adsorption-desorption cycles. Results show that sorbent’s adsorption sites are heterogeneous because they contain amine and phosphate groups. The adsorption capacity increased with temperature and Cd2+ ion concentration reaching 547 mg/g at 25°C for PCF/CS adsorbent media. A media based on casted PCF and CS nanofibers was capable of capturing anionic and cationic contaminants, of which, copper (II), nickel (II), cadmium (II) and chromium oxide (VI). These results confirm that PCF/CS adsorbent media are easy to produce at low cost. They are also environmentally friendly and have high adsorption efficiency. These low-cost bio-adsorbents may contribute to water sustainability as an excellent alternative to existing technologies.
