Prospects for gold phytorecovery from washed sand at placers

The critical analysis of the resource potential of gold mining waste confirms the need for the technologically innovative phytomining based on the capacity of plants to concentrate metals and other compounds. The foreign advances in phytomining are discussed, and the plants–hyperaccumulators of gold are listed. The range of the gold accumulation capability of plants is rather wide, from 0.01 to 10 mg/g, and such plants mostly grow in the hot climate. Russia’s gold mines concentrate chiefly in the north of the country, thus, we need plants capable to vegetate in the harsh climate. The lab-scale toxicometry testing of washed sand sampled at placers finds out that the sand samples exhibit no toxic properties and can be used as a rooting medium. The pot planting was undertaken to evaluate the gold accumulation capacity of sunflower, oat and industrial hemp. Industrial hemp demonstrated the highest bioconcentration factor and gold bio-recoverability. It is expedient to plant out industrial hemp in the areas of mined-out gold placers with a view to additional gold recovery.

Keywords: gold-bearing waste, phytorecovery, phytomining, hyperaccumulators, bioconcentration factor, industrial hemp.
For citation:

Drozdova I. V., Timofeeva S. S., Timofeev S. S. Prospects for gold phytorecovery from washed sand at placers. MIAB. Mining Inf. Anal. Bull. 2023;(5):99-111. [In Russ]. DOI: 10.25018/0236_1493_2023_5_0_99.

Issue number: 5
Year: 2023
Page number: 99-111
ISBN: 0236-1493
UDK: 666.97;58.085
DOI: 10.25018/0236_1493_2023_5_0_99
Article receipt date: 27.01.2023
Date of review receipt: 22.03.2023
Date of the editorial board′s decision on the article′s publishing: 10.04.2023
About authors:

I.V. Drozdova1, Graduate Student, e-mail:, ORCID ID: 0000-0003-2234-6566,
S.S. Timofeeva1, Dr. Sci. (Eng.), Professor, e-mail:, ORCID ID: 0000-0001-8427-3732,
S.S. Timofeev1, Senior Lecturer, e-mail:, ORCID ID: 0000-0001-7085-9468
1 Irkutsk National Research Technical University, 664074, Irkutsk, Russia.


For contacts:

I.V. Drozdova, e-mail:


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