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Treatment Optimization of a Landfill Leachate Testing a Flotation Before the RO

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INCREaSE (INCREaSE 2017)

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Abstract

The sustainable urban waste management is one of the biggest challenges that societies have been facing. The deposition of urban waste in landfill is a very common solution, but requires the implementation of leachate treatment systems, that guarantee the protection of natural resources, namely of surface waters and groundwater. This study was performed at Sotavento Landfill and aimed to test a new leachate treatment system, that allow to reduce the ammonia level in the produced permeate. To improve the nitrification/denitrification, was implemented an experimental flotation treatment, between the stabilization lagoon and the reverse osmosis system (RO), which consists of a 100 m3 reactor, where the air is injected through a Venturi system, with the purpose of degrade organic molecules into more simple ones. Between April and July of 2016, were monitored Ammonia, BOD5, COD, Conductivity, pH and Total Nitrogen, in four points throughout the treatment system, storm lagoon, stabilization lagoon, after the flotation system and permeate.

The results showed that the flotation treatment allows the improvement of the leachate treatment by RO reducing ammonia concentration and conductivity. The feeding of the reverse osmosis system must be done directly from the stabilization lagoon, and not immediately after flotation. Although during this experimental period the legal value of ammonia in permeate has not been fulfilled, is expected that it will be achieved with the flotation system optimization, namely by improving the control of the retention time of the raw leachate in the system, before the treatment by RO.

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Author information

Authors and Affiliations

  1. Institute of Engineering, University of Algarve, Campus Penha, Faro, 8005-139, Portugal

    Tiago Barradas

  2. Faculty of Sciences and Technology, University of Abdelmalek Essaadi, Tangier, Morocco

    Sanae A. El Gueriri

  3. BLUEMATER S.A, Rua Aníbal Cunha, 263, Porto, 4050-049, Portugal

    Nuno Gomes

  4. ALGAR S.A., Barros de São João da Venda, Almancil, 8135-026, Portugal

    Miguel Nunes

  5. Institute of Engineering, Centre of Statistics and Its Applications (CEAUL), University of Algarve, Campus Penha, Faro, 8005-139, Portugal

    Conceição Ribeiro

  6. Institute of Engineering, Centre for Marine and Environmental Research (CIMA), University of Algarve, Campus Penha, Faro, 8005-139, Portugal

    Manuela Moreira da Silva

Authors
  1. Tiago Barradas
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  2. Sanae A. El Gueriri
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  3. Nuno Gomes
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  4. Miguel Nunes
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  5. Conceição Ribeiro
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  6. Manuela Moreira da Silva
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Corresponding author

Correspondence to Manuela Moreira da Silva .

Editor information

Editors and Affiliations

  1. Institute of Engineering, University of Algarve, Faro, Portugal

    António Mortal

  2. Institute of Engineering, University of Algarve, Faro, Portugal

    Jaime Aníbal

  3. Institute of Engineering, University of Algarve, Faro, Portugal

    Jânio Monteiro

  4. Institute of Engineering, University of Algarve, Faro, Portugal

    Cláudia Sequeira

  5. Institute of Engineering, University of Algarve, Faro, Portugal

    Jorge Semião

  6. Institute of Engineering, University of Algarve, Faro, Portugal

    Manuela Moreira da Silva

  7. Institute of Engineering, University of Algarve, Faro, Portugal

    Miguel Oliveira

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Barradas, T., El Gueriri, S.A., Gomes, N., Nunes, M., Ribeiro, C., da Silva, M.M. (2018). Treatment Optimization of a Landfill Leachate Testing a Flotation Before the RO. In: Mortal, A., et al. INCREaSE . INCREaSE 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-70272-8_49

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  • DOI: https://doi.org/10.1007/978-3-319-70272-8_49

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-70271-1

  • Online ISBN: 978-3-319-70272-8

  • eBook Packages: EngineeringEngineering (R0)

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