2026, Vol. 13, No. 2. - go to content...

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DOI: 10.15862/01NZOR226 (https://doi.org/10.15862/01NZOR226)

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Zhovanik I.A., Zhovanik Yu.V., Prituzhalova O.A. Extraction of rare earth elements from landfill bodies: a case study of municipal solid waste and mixed landfills in the Khanty-Mansi Autonomous Okrug — Yugra. Russian journal of resources, conservation and recycling. 2026; 13(2). Available at: https://resources.today/PDF/01NZOR226.pdf (in Russian). DOI: 10.15862/01NZOR226

Extraction of rare earth elements from landfill bodies: a case study of municipal solid waste and mixed landfills in the Khanty-Mansi Autonomous Okrug — Yugra

Zhovanik Ilya Aleksandrovich
University of Tyumen, Tyumen, Russia
E-mail: i.a.zhovanik@utmn.ru
ORCID: https://orcid.org/0009-0001-9233-4782
RSCI: https://elibrary.ru/author_profile.asp?id=1228798

Zhovanik Yuliya Victorovna
University of Tyumen, Tyumen, Russia
E-mail: y.v.zhovanik@utmn.ru
ORCID: https://orcid.org/0009-0006-4512-0788
RSCI: https://elibrary.ru/author_profile.asp?id=1194928

Prituzhalova Olga Alexandrovna
University of Tyumen, Tyumen, Russia
E-mail: o.a.prituzhalova@utmn.ru
ORCID: https://orcid.org/0000-0002-0720-9793
RSCI: https://elibrary.ru/author_profile.asp?id=891523

Abstract. Rare earth metals are classified as critically important raw materials due to their scarcity and significance in the implementation of environmentally sustainable technologies. Amid growing interest in secondary sources of rare earth elements (REE), the assessment of their content in landfill soils of municipal solid waste sites and the ash derived from their incineration emerges as a pertinent scientific and practical challenge.

This article presents the results of laboratory experiments on REE extraction from landfill bodies of municipal solid waste landfills using a method involving waste ashing followed by leaching with sodium citrate and oxalate. The study was conducted on landfills located in the Khanty-Mansi Autonomous Okrug — Yugra. Samples were collected from a total of 13 landfills, including 8 dedicated to municipal (household) waste and 5 where municipal waste is co-stored with industrial waste.

It has been established that municipal solid waste can serve as a significant source of REE. Concentrations of REE in both the ash from incinerated municipal solid waste and the precipitated product obtained via the citrate-oxalate method vary widely: from 5,88 g/t to 256,40 g/t for total REE. The dominant elements were lanthanum, cerium, praseodymium, and neodymium. The identified REE concentrations correlate with the composition of waste deposited at the landfills. They were highest at the landfills in the cities of Surgut, Yugorsk, Megion, and Raduzhny (three of the four mentioned landfills accommodate both household and industrial waste). The estimated resource base of REE at the studied landfills in the Khanty-Mansi Autonomous Okrug — Yugra (total reserves across the landfills) amounts to approximately 22 t (with an uncertainty of ±20 %).

Keywords: rare earth elements; urban mining; landfill leachate; municipal solid waste incineration ash; citrate oxalate leaching; secondary resources

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