Treatment of wastewater generated at a dairy processing plant in the ecuadorian amazon

Authors

DOI:

https://doi.org/10.59282/reincisol.V3(6)2311-2331

Keywords:

wastewater treatment, dairy, design, treatment plant design, Environmental Law, equipment sizing

Abstract

The objective of this study is to characterize and design a treatment system for wastewater generated in a dairy processing plant, located in the Pastaza province, in the Fátima parish. The plant produces a large amount of wastewater, which is discharged untreated, causing significant environmental impact on nearby freshwater bodies. By characterizing the wastewater physically, chemically, and microbiologically, a treatment system was proposed that includes sedimentation, coagulation-flocculation, and filtration processes.

Initially, the flow rate was measured over seven days, yielding an average of 2.052 m³/h. Subsequently, the wastewater was characterized by taking 1.25 L samples every hour for 8 hours to obtain a composite sample. Physical, chemical, and microbiological analyses revealed that the biochemical oxygen demand (BOD), chemical oxygen demand (COD), oils and fats, total nitrogen, total solids, and suspended solids parameters exceeded the permissible limits established, with values of 1874 mg/L, 3300 mg/L, 295.43 mg/L, 171.4 mg/L, 2568 mg/L, and 606 mg/L, respectively.

Downloads

Download data is not yet available.

Metrics

Metrics Loading ...

References

Al-Tayawi, A. N., Sisay, E. J., Beszédes, S., & Kertész, S. (2023). Wastewater treatment in the dairy industry: From classical treatment to promising technologies. Processes, 11(7), 2133. https://doi.org/10.3390/pr11072133

Coppola, S., et al. (2020). Water management in the dairy industry. Springer.

Daryabeigi Zand, A., & Hoveidi, H. (2015). Evaluation of the effectiveness of aluminum sulfate and poly-aluminum chloride in wastewater treatment. Biotechnology Reports, 6, 18-24. https://www.biotechrep.ir/article_69189_15e78418c10724dd9a027deb22e59857.pdf

Hammer, M. J., & Hammer, M. J. (2023). Water and Wastewater Technology (4th ed.). CRC Press.

Instituto Ecuatoriano de Normalización. (2019). NTE INEN 2176:2019 AGUA. Calidad del agua. Técnicas de muestreo. https://www.inen.gob.ec

Metcalf & Eddy. (2020). Wastewater Engineering: Treatment and Resource Recovery (6th ed.). McGraw-Hill Education.

Ministerio del Ambiente. (2021). Acuerdo Ministerial 097: Norma de calidad ambiental y de descarga de efluentes al recurso agua. Registro Oficial. https://www.ambiente.gob.ec/acuerdo097

Owusu Nti, S., Buamah, R., & Atebiya, J. (2021). Polyaluminium chloride dosing effects on coagulation and flocculation in wastewater treatment. Water Practice & Technology, 16(4), 1215–1223. https://iwaponline.com/wpt/article/16/4/1215/83042

Saxena, R., et al. (2019). Environmental impact of dairy industry. Environmental Science and Pollution Research, 26(3), 2545–2552. https://doi.org/10.1007/s11356-018-2271-6

Su, C.-H., & Cheng, C.-H. (2020). A mobile gamification learning system for improving the learning motivation and achievements. Journal of Computer Assisted Learning, 35(1), 30-46. https://doi.org/10.1111/jcal.12323

United States Environmental Protection Agency (EPA). (2019). Guidelines for Water Reuse. U.S. Environmental Protection Agency. https://www.epa.gov/waterreuse/guidelines-for-water-reuse

Gobierno Autónomo Descentralizado Provincial de Pastaza. (2017). Fátima. Sistema Nacional de Información. http://www.pastaza.gob.ec/pastaza/fatima

Fernández Cirelli, A. (2012). El agua: un recurso esencial. Instituto Centro de Estudios Transdisciplinarios del Agua (CETA), Universidad de Buenos Aires y Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET). https://www.redalyc.org/pdf/863/86325090002.pdf

Standard Methods for the Examination of Water and Wastewater. (2017). Standard Methods for the Examination of Water and Wastewater (23rd ed.). American Public Health Association.

Eddy, M. (2007). Ingeniería de aguas residuales (2ª ed.). McGraw-Hill.

Environmental Protection Agency (EPA). (2019). Standard methods [PDF]. https://www.standardmethods.org/

Gleick, P. H. (2000). The World's Water 2000-2001: The Biennial Report on Freshwater Resources. Island Press. https://doi.org/10.5070/G311610468

Published

2024-09-11

How to Cite

Chariguaman Coello , L. A. ., Gómez Machado, L. K. ., Guerrero Naranjo, L. E. ., & Moya Bayas , R. B. . (2024). Treatment of wastewater generated at a dairy processing plant in the ecuadorian amazon. REINCISOL, 3(6), 2311–2331. https://doi.org/10.59282/reincisol.V3(6)2311-2331
Bookmark and Share

Most read articles by the same author(s)

10.59282

reincisol