Biogeotechnology Application in the Recovery of Metals from the Wastes of Processing Plants

Seleznev, A. N.; Balikov, Stanislav V.; Shketova, Lyudmila Ye.; Копылова, Наталья Вячеславовна

doi:10.4028/www.scientific.net/amr.1130.618

Cited by 3 publications

(3 citation statements)

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“…In work [16], as a result of bioleaching of non-ferrous metals for 300 days, the recovery of nickel into solution was 65 %, copper -30 %. In addition to the main elements, the solution contained ferric iron and ferrous iron.…”

Section: Discussionmentioning

confidence: 98%

Recovery of non-ferrous metals from sulfide ores by the method of heap bioleaching on the example of Allarechensk technogenic deposit

Latyuk,

Potapov,

Kompanchenko

et al. 2023

E3S Web Conf.

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On the example of the Allarechensk technogenic deposit ore, the heap bioleaching method feasibility for the copper-nickel ores processing and non-ferrous metals recovery was considered. The content of metals in the initial ore sample was following: nickel – 2.42 %, copper – 0.75 %. The ore grinded to a size of -5+3 mm was irrigated with a solution containing a strain of Acidithiobacillus ferrivorans. The S:L ratio was 4:1, the flow rate was 0.1 mL/min. In pregnant solutions, the pH and ORP values were controlled, and the concentrations of ferrous and ferric iron, copper, and nickel ions were also measured. The experiment duration was 330 days, 8.9 % nickel and 6.1 % copper were recovered. The pathways for the metals extraction from pregnant solutions, as well as the utilization of bioleaching residue were considered.

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Section: Discussionmentioning

confidence: 98%

Recovery of non-ferrous metals from sulfide ores by the method of heap bioleaching on the example of Allarechensk technogenic deposit

Latyuk,

Potapov,

Kompanchenko

et al. 2023

E3S Web Conf.

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“…Selective zinc concentrate contained 44.8% of zinc in the form of carbonate. The recovery of zinc to concentrate was 98% [4].…”

Section: Fig 2 Changes In Solutions Properties During Heap Biooxidationmentioning

confidence: 95%

Heap Biooxidation of Gold-Sulphide and Polymetallic Ores and Tailings

Epiforov

Seleznev

Emelyanov

et al. 2017

SSP

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Heap biooxidation is the most economic option of treating processing plants tailings and refractory ores containing non-ferrous and precious metals and sulphides.Pyrite tailings of copper ore processing (Sample 1), tailings of sulphide copper-nickel ore processing (Sample 2) and double refractory gold-bearing ore (Sample 3) were studied.Autotrophic microorganisms Acidithiobacillusthiooxidans and Acidithiobacillusferrooxidans were used for the tests. The duration of heap biooxidation tests for Samples 1, 2 and 3 was 6, 10 and 16 months, respectively. The rates of copper and zinc recovery into solution during heap biooxidation of Sample 1 were 68% and 71%, respectively; the rates of copper and nickel recovery from Sample 2 were 50% and 75%, respectively. Base metals were extracted from solution to selective high-grade concentrates after biooxidation.Biooxidation tailings of Samples 1 and 3 were leached using an alkaline sodium cyanide solution. The recovery of gold from Sample 1 and Sample 2 was 65% and 85%, respectively.

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“…Seleznev et al [87] conducted a study to recover precious metals from a plant's tailings in the Southern Ural Mountains and Murmansk region. The authors studied two different sites located in Russia's Southern Ural Mountains and Murmansk Region.…”

Section: Bioleachingmentioning

confidence: 99%

Submarine Tailings in Chile—A Review

Rodríguez

Moraga

Castillo

et al. 2021

Metals

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This review aims to understand the environmental impact that tailings produce on the land and marine ecosystem. Issues related to flora, fauna, and the environment are revised. In the first instance, the origin of the treatment and disposal of marine mining waste in Chile and other countries is studied. The importance of tailings’ valuable elements is analyzed through mineralogy, chemical composition, and oceanographic interactions. Several tailings’ treatments seek to recover valuable minerals and mitigate environmental impacts through leaching, bioleaching, and flotation methods. The analysis was complemented with the particular legislative framework for every country, highlighting those with formal regulations for the disposal of tailings in a marine environment. The available registry on flora and fauna affected by the discharge of toxic metals is explored. As a study case, the “Playa Verde” project is detailed, which recovers copper from marine tailings, and uses phytoremediation to neutralize toxic metals. Countries must regularize the disposal of marine tailings due to the significant impact on the marine ecosystem. The implementation of new technologies is necessary to recover valuable elements and reduce mining waste.

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Biogeotechnology Application in the Recovery of Metals from the Wastes of Processing Plants

Cited by 3 publications

References 1 publication

Recovery of non-ferrous metals from sulfide ores by the method of heap bioleaching on the example of Allarechensk technogenic deposit

Recovery of non-ferrous metals from sulfide ores by the method of heap bioleaching on the example of Allarechensk technogenic deposit

Heap Biooxidation of Gold-Sulphide and Polymetallic Ores and Tailings

Submarine Tailings in Chile—A Review

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