Tasev, Goran and Serafimovski, Dalibor (2020) Positive and negative impacts of technogenic deposits. Knowledge - International Journal, Scientific Papers, 38 (3). pp. 567-573. ISSN 2545-4439
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Abstract
The paper presents the results of research on several characteristic mine tailings in the World and in our country (Republic North Macedonia), in terms of their negative impact on the human environment, but also in terms of their eventual positive impact due to their industrial use and extraction of Rare Earth Elements, rare metals etc.
Three characteristic mine tailings were treated in this paper that have clearly defined negative environmental
impacts, some of which have catastrophic consequences. The first of them was the tailing dam in Baia Mare,
Romania where tailings material from the gold mine had been deposited. During the tailing dam failure in 2000, up to 100 000 cubic meters of liquid and suspended waste containing about 50 to 100 tons of cyanide, as well as
copper and other heavy metals went into the nearby stream and later into the Tisza and Dunav rivers. Much of the
wildlife in the rivers in Romania, Hungary and Yugoslavia was extinct, and in particular 1240 tonnes of dead fish
were found in Hungary. The second accident we studied was the Sasa tailing dam failure in 2003. During the accident from the Sasa tailing dam into the near Kamenicka river outflow 100 000 m3 of material. Human casualties were not recorded during this accident, but all the wildlife in the Kamenica River was extinct and large material damages were reported, too. The big catastrophic dam failure occurred in 2019 at the Vale's Brumadinho mine in Brasil when over 12 million cubic meters of tailings material overflow after the tailing dam collapsed and 270 people died. The positive impacts are seen in the examples of the studied lead-zinc deposit Toranica with approximately 3 Mt material and interesting contents of lead, zinc and especially indium, germanium, gallium, and in the As-Sb Lojane deposit containing over 1 Mt with 2% As and Sb withi 3Mt of tailing dam.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Earth and related environmental sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Goran Tasev |
| Date Deposited: | 19 May 2020 05:39 |
| Last Modified: | 19 May 2020 05:39 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/24042 |
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