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A Critical Review on the Microbial Ecology of Landfill Leachate Treatment Systems

Author

Listed:
  • Nikolaos Remmas

    (Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece)

  • Nicola Manfe

    (Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece
    Department of Civil, Environmental and Architectural Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy)

  • Ioanna Zerva

    (Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece)

  • Paraschos Melidis

    (Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece)

  • Roberto Raga

    (Department of Civil, Environmental and Architectural Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy)

  • Spyridon Ntougias

    (Laboratory of Wastewater Management and Treatment Technologies, Department of Environmental Engineering, Democritus University of Thrace, Vas. Sofias 12, 67132 Xanthi, Greece)

Abstract

Sanitary landfilling is still considered worldwide as one of the most common methods applied for the management of the municipal solid waste. As a consequence, vast amounts of landfill leachate are generated annually, which are characterized by variability in physicochemical composition, owing to the stabilization process that occurs over the years. However, sustainable management of landfill leachate is a challenging issue, due to diverse chemical composition and high concentration in heavy metals and xenobiotics. Despite the fact that several studies have been reported on the biotreatment of landfill leachate, only in recent years has the microbial composition in such systems have been examined. In the present review, the key role of the microbial ecology involved in depurification and detoxification of landfill leachate in activated sludge and anaerobic systems is interpreted and ecological considerations influencing landfill leachate treatment are stated. Apart from the assessment of landfill toxicity on certain model organisms, this work provides an extensive overview on microbial communities performing key biological processes during landfill leachate treatment, including nitrification-denitrification, anammox and anaerobic digestion. Moreover, microbial aspects affecting nutrient removal efficiency in such biosystems are discussed.

Suggested Citation

  • Nikolaos Remmas & Nicola Manfe & Ioanna Zerva & Paraschos Melidis & Roberto Raga & Spyridon Ntougias, 2023. "A Critical Review on the Microbial Ecology of Landfill Leachate Treatment Systems," Sustainability, MDPI, vol. 15(2), pages 1-20, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:2:p:949-:d:1025277
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    References listed on IDEAS

    as
    1. Giovanni Vinti & Valerie Bauza & Thomas Clasen & Kate Medlicott & Terry Tudor & Christian Zurbrügg & Mentore Vaccari, 2021. "Municipal Solid Waste Management and Adverse Health Outcomes: A Systematic Review," IJERPH, MDPI, vol. 18(8), pages 1-26, April.
    2. Yanli Zhu & Youxian Zhang & Dongxia Luo & Zhongyi Chong & Erqiang Li & Xuepeng Kong, 2021. "A review of municipal solid waste in China: characteristics, compositions, influential factors and treatment technologies," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 23(5), pages 6603-6622, May.
    3. Pradeep Jain & James Wally & Timothy G Townsend & Max Krause & Thabet Tolaymat, 2021. "Greenhouse gas reporting data improves understanding of regional climate impact on landfill methane production and collection," PLOS ONE, Public Library of Science, vol. 16(2), pages 1-15, February.
    4. Maroua El Ouaer & Nejib Turki & Amjad Kallel & Mansour Halaoui & Ismail Trabelsi & Abdennaceur Hassen, 2020. "Recovery of landfill leachate as culture medium for two microalgae: Chlorella sp. and Scenedesmus sp," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 22(3), pages 2651-2671, March.
    5. Aifeng Qiu & Qiang Cai & Yuan Zhao & Yingqing Guo & Liqian Zhao, 2016. "Evaluation of the Treatment Process of Landfill Leachate Using the Toxicity Assessment Method," IJERPH, MDPI, vol. 13(12), pages 1-16, December.
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