Detalhes bibliográficos
| Ano de defesa: |
2018 |
| Autor(a) principal: |
Marques, Marcela Grandinetti
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| Orientador(a): |
Chaves, Marcia Rodrigues de Morais
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| Banca de defesa: |
Não Informado pela instituição |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade do Sagrado Coração
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| Programa de Pós-Graduação: |
Ciência e Tecnologia Ambiental
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| Departamento: |
Ciências Exatas e Sociais Aplicadas
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| País: |
Brasil
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://tede2.usc.br:8080/jspui/handle/tede/414
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Resumo: |
The fast development of the industrial sector is a concern when related to the water usage and wastewater disposal. Facing the current water crisis and the climate change, there is great concern on the part of industries for the efficient treatment and reuse of effluent. The metal-mechanical sector industries are responsible for a great amount of generated effluents, with potential to pollute the environment due to the presence of toxic metals. Besides the appropriate treatment being fundamental, reuse is essential because it preserves the environmental resources, diminishing the water consumption of the manufacturing processes. Despite the existence of advanced effluent treatment techniques and equipment, there is a large corporate resistance in its utilization, based on the economic cost, discouraging factor of the reuse practice, hence liming the treatment options to the most common techniques, making the perfectioning of the existing treatment processes in the industrial unit is imperative. This work aimed to study the technical and economic feasibility of effluent reuse in a metal-mechanical sector industry. It was possible to identify mistakes in the treatment process and in the dosage of chemical products, what precluded reuse of the final effluent. The perfectioning was realized through identification of the chemical composition of the effluent and tests in laboratory and industrial scale. With the new proposed methodology, reduction of 50.96% was recognized in the costs of the effluent treatment cost without the need of new investments. Enhancements were also found in the operator’s working condition, as the treatment is provided in a faster and more efficient way. From the interventions to improve the process, the quality parameters of the treated effluent reached the standards for reuse in sanitary discharges and floor washes. Therefore, this work promoted environmental, social and economic gains for the industry and society involved. |
