Biological Treatment, Advanced Oxidation and Membrane Separation for Landfill Leachate Treatment: A Review

Arailym Kamal, Ardak Makhatova, Bakzhan Yergali, Aigerim Baidullayeva, Aliya Satayeva, Jong Kim, Vassilis J. Inglezakis, Stavros G. Poulopoulos, Elizabeth Arkhangelsky

Research output: Contribution to journalReview articlepeer-review

8 Citations (Scopus)


Landfill leachate, especially when produced in old municipal solid waste landfills, is a challenging type of wastewater which contains a variety of toxic substances. The existence of pollutants in the landfill leachate is primarily due to inadequate solid waste separation at the source. Pretreatment on site is a must for the landfill leachate to be safely released into the environment. One-step treatment is insufficient since landfill leachate has a complex composition that spatially and temporally varies. Often, the landfill leachate and municipal wastewater are treated together. Biological treatment is a routine technique which is applied to landfill leachate less than five years old. The concentration of easily biodegradable organic matter in the young landfill leachate declines with time and, as a result, the application of physical and chemical treatment processes is required. The goal of the current work is to investigate the usefulness and capability of the most efficient and widely available technique/s for landfill leachate treatment, to identify the main challenges and strengths of each technology and seek the optimum solution.

Original languageEnglish
Article number14427
JournalSustainability (Switzerland)
Issue number21
Publication statusPublished - Nov 2022


  • activated sludge
  • AOPs
  • landfill leachate
  • membrane separation
  • photochemical treatment

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Building and Construction
  • Environmental Science (miscellaneous)
  • Energy Engineering and Power Technology
  • Hardware and Architecture
  • Computer Networks and Communications
  • Management, Monitoring, Policy and Law


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