Concepção de um sistema de clarificação de efluente de lavanderia hospitalar

Autores

DOI:

https://doi.org/10.33448/rsd-v11i15.37275

Palavras-chave:

Serviço hospitalar de lavanderia; Cinza de carvão; Zeolitas; Clarificação de águas; Adsorção.

Resumo

Aproximadamente 20% da cinza de carvão mineral (MCA) gerada mundialmente, durante a combustão deste combustível fóssil, tem sido utilizada para a produção de cimento Portland. Outras aplicações incluem melhoramento de solos, indústria cerâmica, catálise e uma aplicação com especial interesse para este trabalho que é a síntese de zeólitas. Foi desenvolvido um sistema de clarificação de efluentes hospitalares utilizando o MCA como adsorvente de substâncias responsáveis pela cor do efluente gerado pela lavanderia. Um tanque de mistura perfeito promove o contato íntimo entre o MCA e o efluente. Na saída do tanque de mistura, um sensor de pH correlacionou o valor desta variável com a concentração de MCA na mistura dentro do tanque. As informações sobre o pH da mistura foram então enviadas para um controlador lógico programável (CLP), que regulava a velocidade do motor de uma rosca transportadora, com auxílio de um inversor de frequência. Foi alcançada uma eficiência de remoção de cor da ordem de 99,8%. O sistema de clarificação proposto pode operar tanto em lote quanto contínuo. No primeiro caso, as condições ideais de operação podem ser definidas. A estratégia para ajustar as condições de operação é obter uma capacidade nominal adequada para o sistema, reduzindo ou aumentando o número de ciclones por bateria ou o número de baterias de ciclones.

Biografia do Autor

Daniel de Morais Sobral, Federal Rural University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Ivan Xavier Lins, Federal University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Galba Maria Campos-Takaki, Catholic University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Nucleus of Research in Environmental Sciences and Biotechnology of Catholic University of Pernambuco, Brazil

Valdemir Alexandre dos Santos, Catholic University of Pernambuco; Northeast Biotechnology Network; Advanced Institute of Technology and Innovation

Northeast Biotechnology Network, Brazil

Advanced Institute of Technology and Innovation, Brazil

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Publicado

18/11/2022

Como Citar

SOBRAL, D. de M.; NOVAES, C. F.; LINS, I. X.; CAMPOS-TAKAKI, G. M.; SANTOS, V. A. dos. Concepção de um sistema de clarificação de efluente de lavanderia hospitalar. Research, Society and Development, [S. l.], v. 11, n. 15, p. e317111537275, 2022. DOI: 10.33448/rsd-v11i15.37275. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/37275. Acesso em: 27 dez. 2024.

Edição

Seção

Engenharias