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Reutilization prospects of diamond clay tailings at the Lomonosov Mine, northwestern Russia

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doi: 10.3390/min10060517
Authors:Pashkevich, Mariya; Alekseenko, Alexey
Author Affiliations:Primary:
Saint Petersburg Mining University, Department of Geoecology, Saint Petersburg, Russian Federation
Volume Title:Minerals (Basel)
Source:Minerals (Basel), 10(6). Publisher: Multidisciplinary Digital Publishing Institute (MDPI), Basel, Switzerland. ISSN: 2075-163X
Publication Date:2020
Note:In English. 84 refs.; illus., incl. 6 tables, geol. sketch maps
Summary:Approaches to reutilization of diamond clay tailings in northern environments are considered in the example of the Subarctic region of Russia. The monitoring studies are conducted at storage facilities of Severalmaz PJSC where ca. 14 million cubic meters of waste rock are produced annually after kimberlite mining and processing. The tailings of diamond ore dressing waste are situated in complex geological conditions of high-groundwater influx and harsh cold climate with low levels of solar radiation and the average annual temperature below freezing point. Furthermore, the adjoining protected forests with a significant diversity of biogeocenoses and salmon-spawning rivers are affected by the storage area. Reducing the impact of the tailings can be achieved through the reuse of the stored clay magnesia rocks obtained from saponite-containing suspension. The experiments reveal the most promising ways of their application as potential secondary mineral raw materials: cement clinker and ceramics manufacture, integration of alkaline clay into the reclamation of acidic peat bogs, and production of aqueous clay-based drilling fluid. Field and laboratory tests expose the advantages and prospects of each suggested treatment technique.
Subjects:Ceramic materials; Drilling muds; Experimental studies; Igneous rocks; Industrial minerals; Kimberlite; Laboratory studies; Mine waste; Reclamation; Recycling; Secondary minerals; Tailings; Utilization; Arctic region; Commonwealth of Independent States; Russian Arctic; Russian Federation; Lomonosov Mine
Coordinates:N663200 N900000 W1700000 E0300000
Record ID:884751-36
Copyright Information:GeoRef, Copyright 2021 American Geosciences Institute.
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