Вісник Київського національного університету імені Тараса Шевченка


Bulletin of Taras Shevchenko National University of Kyiv



1 A. Sholokhova, MSc student,
2 O. Tsibernaja, MSc student,
1 V. Mykhaylenko, PhD Chemistry, Associate Professor,
3 J. Burlakovs, PhD,
2 V. Kuusemets, PhD, Professor, 
2 K.-M. Pehme, PhD Student,
2 M. Kriipsalu, PhD, Professor

1 Taras Shevchenko National University of Kyiv, Kyiv, Ukraine,
University of Life Sciences, Tartu, Estonia,
3 Linnaeus University, Vaxjo, Sweden

A landfill is a large bioreactor, in the body of which landfill gases are generated due to anaerobic degradation of organic material. According to European legislation, the emission of methane, one of the landfill gases, should be kept to a minimum as methane is a greenhouse gas and has a significant impact on our climate. With large volumes, methane can be used for energy production, but if the collection is uneconomic, an attractive option would be to cover the landfill with a bioactive layer to degrade methane in-situ. In operational Uikala sanitary landfill, Estonia, where active gas collection system exists, it was found that uncaptured gas could be degraded in bioactive cover layer. To check whether such cover layer could be built from fine fraction after mechanical biological treatment (MBT), two experimental cells were constructed (0-20 mm and 0-40 mm fractions). The paper presents the design of experimental cells, a description of materials for construction and construction process, and preliminary results. Measurement system was installed in both cells: gas wells at eight depths and on three locations on surface. Three-level lysimeters were installed to determine water balance. Research is planned for two years with monthly gas sampling. The objective of the work is proving which of the MBT fractions, 0-20 or 0-40 mm, function better for methane degradation. Confirmation of the methane degradation efficiency in fine MBT fraction is important not only from the ecological point of view. The use of a fine fraction as a material for methane degradation layer would reduce the cost of processing this fraction and become a good example to a circular economy since the landfill would be recultivated using its own resources.

Keywords: Landfill gas, MBT fine fraction, Emission, Methane degradation layer, Landfill cover, Lysimeter


DOI: http://doi.org/10.17721/1728-2721.2019.74.15


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Suggested citation:

A. Sholokhova, O. Tsibernaja, V. Mykhaylenko, J. Burlakovs, V. Kuusemets, K.-M. Pehme, M. Kriipsalu (2019) Pilot-scale methane degradation biocover at operating landfill. Visnyk Kyivskogo nacionalnogo universytetu imeni Tarasa Shevchenka, Geografiya [Bulletin of Taras Shevchenko National University of Kyiv, Geography], 1 (74), 88-92 (in English, abstr. in Ukranian).

Received Editorial Board 07/05/2019
Accepted for publication 19/06/2019