Evaluation of waste waters quality of the Soy Processing Industry of Santiago de Cuba

  • Dunia Rodriguez Heredia Facultad de Ingeniería Química y Agronomía, Universidad de Oriente. Cuba
  • Orlindes Calzado Lamela Facultad de Ingeniería Química y Agronomía, Universidad de Oriente. Cuba
  • Ana Lilian Noguera Araujo Facultad de Ingeniería Química y Agronomía, Universidad de Oriente. Cuba
  • Valduvina Córdova Rodríguez Centro Nacional de Electromagnetismo Aplicado. Cuba
  • Telvia Arias Lafargue Facultad de Ingeniería Química y Agronomía, Universidad de Oriente. Cuba
Keywords: wastewater; soy processing; Santiago de Cuba´s bay.

Abstract

Santiago de Cuba´s bay is consolidated as the second most polluted marine ecosystem in the country, because it is the reservoir of much of the waste generated in the province. Among the industries that dump their residuals into the ecosystem, is the Soy Processing Company. Therefore, in the present work the quality of these residuals was evaluated based on the determination of chemical physical parameters. Samples were taken at the outlet of the plant to the receiving body, in the period from february to march 2019. The samples were analyzed in the "Elio Trincado" Laboratory of the Geominera Oriente Company and in the ENAST of Santiago de Cuba. Physical-chemical parameters were determined as: heavy metals, fats and oils, pH, conductivity, BOD and COD, comparing the values obtained with the NC 521: 2007 and NC 27:2012. The results revealed that heavy metals, conductivity and pH were within the norm, while the rest of the parameters fluctuated between values above the maximum permissible average limits established by cuban regulations. It is concluded that in these residuals organic compounds predominate, taking into account the high values of fats and oils, BOD and COD.

Published
2020-10-29
How to Cite
Rodriguez Heredia, D., Calzado Lamela, O., Noguera Araujo, A. L., Córdova Rodríguez, V., & Arias Lafargue, T. (2020). Evaluation of waste waters quality of the Soy Processing Industry of Santiago de Cuba. Chemical Technology, 40(3), 563-575. Retrieved from https://tecnologiaquimica.uo.edu.cu/index.php/tq/article/view/5169
Section
Artículos

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