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Constructed wetland scale model: organic matter and nutrients removal from the effluent of a fish processing plant

  • M. PiñeyroEmail author
  • G. Chalar
  • F. Quintans
Original Paper
  • 29 Downloads

Abstract

Constructed wetlands are suitable for treating industrial effluents due to their low cost and effectiveness, thus preventing the deterioration of waterways witnessed in recent decades at global level. Advances in the study of wetland design are necessary for the development of constructed wetlands. An artificial wetland model with subsurface flow (three replications), Typha domingensis, and hydraulic retention time of 5 days was used. It was designed for the post-treatment of the effluent from a fish processing plant. All samples were taken at the model system inlet and outlet every 21 days for 1 year. Significant removal of nitrogen and organic matter (biochemical oxygen demand and the chemical oxygen demand) was achieved, but phosphorus removal was less than expected. Wetland performance was not affected by seasonal variations in ambient temperature. The increase in the C/N ratio was related with a higher wetland efficiency of organic matter removal. Overall performance for the wetland model under in situ environmental conditions was determined by the intrinsic reaction rate of the system.

Keywords

Intrinsic reaction rate Typha Waste water treatment 

Notes

Acknowledgements

The authors wish to thank Novabarca S.A. who allowed the use of its facilities and Urunova SRL, for donated materials for the construction of the model. We also want to thank the staff of the Limnology Section, Faculty of Science, Udelar, for the facilities provided. We are also grateful to E. Calabuig and his team of collaborators in the area of Ecology (Department of Biodiversity and Environmental Management, Faculty of Biological and Environmental Sciences of the University of León) for the help provided. We are very grateful to Federico Mas for his valuable suggestions to improve the manuscript. This research was partially financed by a MSc scholarship from the National Research and Innovation Agency (ANII) POS_2011_1_3461.

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Copyright information

© Islamic Azad University (IAU) 2019

Authors and Affiliations

  1. 1.Facultad de CienciasUniversidad de la RepúblicaMontevideoUruguay

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