v. 35 n. 2 (2022): Revista ION
Artigos

Avaliação técnico-econômica de uma proposta de estação de tratamento de efluentes de cromo

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  • Amaury Pérez Sánchez,
  • Marisabel Sánchez González
Amaury Pérez Sánchez
University of Camagüey
Marisabel Sánchez González
University of Camagüey
DOI: https://doi.org/10.18273/revion.v35n2-2022003

Publicado 2022-12-02

Palavras-chave

  • Chromium,
  • Avaliação econômica,
  • Simulação de processos,
  • Tratamento de águas residuais

Como Citar

Pérez Sánchez, A., & Sánchez González, M. . (2022). Avaliação técnico-econômica de uma proposta de estação de tratamento de efluentes de cromo. REVISTA ION, 35(2), 33–48. https://doi.org/10.18273/revion.v35n2-2022003

Copyright (c) 2022 Amaury Pérez Sánchez, Marisabel Sánchez González

Creative Commons License
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.

Resumo

As estações de tratamento de águas residuais são sistemas que, se operados corretamente, podem ajudar a saúde da indústria e do meio ambiente. No presente trabalho, foi realizada a avaliação técnico-econômica de uma proposta de estação de tratamento de efluentes de cromo com capacidade de processamento de 9 t de efluente por lote, a fim de determinar seus principais parâmetros de rentabilidade, utilizando o simulador SuperPro Designer® v. 10. Cerca de 6.959,90 L/lote de água tratada são gerados, enquanto um investimento de capital total de US $ 3.549 milhões e um capital fixo direto de US $ 3.222 milhões são necessários. O item que mais influencia nos custos operacionais anuais é o dos custos dependentes da instalação (US $ 345.000/ano) enquanto o reagente que mais influencia nos custos anuais de consumo de materiais é o cloreto férrico (US $ 56.805/ano). Houve um custo unitário de processamento de US $ 0,22/kg, um lucro líquido anual de US $ 486.000 e um retorno sobre o investimento de 22,16%. Os valores obtidos a partir dos indicadores Valor Presente Líquido (US $ 3.361.000), Taxa Interna de Retorno (29,61%) e Período de Retorno do Investimento (4,51 anos) permitem estabelecer que a proposta é rentável nas condições econômicas atuais em Cuba.

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