Tratamento de águas residuais da indústria de laticínios com Moringa Oleífera usando dois métodos diferentes

Autores

DOI:

https://doi.org/10.33448/rsd-v10i7.16514

Palavras-chave:

Clarificação; Moringa Oleífera; Efluentes de laticínios; Remoção de DQO.

Resumo

A indústria de laticínio é extremamente importante para a economica Brasileira, sendo que o país possui mais de 2 mil laticinios e movimenta cerca de 19 bilhoes de USD/ano neste setor. O efluente gerado pela industria de laticinios tem alto carga orgânica e, portanto, deve ser tratado antes de ser disposto nos corpos hidricos. Uma das opções para tratamento de efluentes é o uso de coagulantes naturais, como a semente da Moringa Oleífera (MO). Neste contexto, o presente trabalho avalia experimentalmente a eficiência de tratamento de efluentes da industria de laticinio utilizando coagulantes a base da semente de MO, discutindo as potencialidades ambientais e econômicas do plantio de MO para esta aplicação.  Avaliação foi realizada considerando o uso da semente de MO tanto de forma direta (triturada) como também em solução salina por meio do ensaio Jar Test. A eficiência de clarificação e remoção de DQO da amostra bruta foram avaliadas para diversos cenários de turbidez inicial e volume de coagulante. Os resultados obtidos demonstraram que o uso direto da farinha de semente de MO apresentou elevada eficiência de redução de turbidez na maioria dos ensaios, sendo obtidos resultados entre 97 e 99%. A área d eplantio necessário para esta aplicação em um laticinio com processamento de 10 m³ de leite por dia foi de 1775 m². O uso da MO em solução salina não obteve a mesma eficiência, indicando a necessidade de otimização dos parâmetros de ensaio. Discussões mais amplas das potencialidades e limitações do uso da MO puderam ser construídas a partir dos resultados obtidos.

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Publicado

18/06/2021

Como Citar

JUNHO, A. L.; SANTOS , I. F. S. dos; SILVA, A. M. L. .; BARROS, R. M. .; SANT’ANNA, D. O. .; FERRAZ, A. C. P. . Tratamento de águas residuais da indústria de laticínios com Moringa Oleífera usando dois métodos diferentes. Research, Society and Development, [S. l.], v. 10, n. 7, p. e21710716514, 2021. DOI: 10.33448/rsd-v10i7.16514. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/16514. Acesso em: 22 dez. 2024.

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Engenharias