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Пријава

Collected Item: “Bio-electrochemical potential and mineralogy of metal rich acid mining lake sediment: the “Robule” lake case study”

Врста публикације

Рад у часопису

Верзија рада

објављена верзија

Језик рада

енглески

Аутор/и (Милан Марковић, Никола Николић)

Nebojša Atanacković, Alena Zdravković, Jana Štrbački, Sabina Kovač, Vladimir Živanović, Katarina Batalović, Srđan Stanković

Наслов рада (Наслов - поднаслов)

Bio-electrochemical potential and mineralogy of metal rich acid mining lake sediment: the “Robule” lake case study

Наслов часописа

International Journal of Environmental Science and Technology

Издавач (Београд : Просвета)

Springer-Verlag

Година издавања

2024

Сажетак на енглеском језику

Mining for base metals and some critical raw materials is associated with acid, sulphate, and metal-rich waters (AMD). At the points where these waters are accumulated or discharged, the secondary minerals are precipitated, mostly iron-oxyhydroxides, forming characteristic orange sediments toxic to the environment. The sediment or sludge is prone to leaching of metals and sulphate, thus requiring proper disposal to maintain the waste stability. In this study, we assessed the AMD lake “Robule” sediment electrochemical properties and associated mineralogy in sediment microbial fuel cell (SMFC). The SEM–EDS and XRPD analysis revealed schwertmannite, jarosite, goethite and gypsum as the most abundant mineral forms with efflorescent sulphates salts precipitated on top of the air-open cathode. In the acid lake mine water dominant aquatic species are SO42−, Mg2+, AlSO4+, and Fe3+ iron mostly as various sulphate complexes. Although oxidized forms prevail in the lake water and sediment, the possibility of generating electrical current is, to our knowledge, for the first time registered for this type of mining waste. A closed-circuit voltage of 439 ± 60 mV (at 220 Ω external resistance), an average current density of 210 ± 28.6 mA/m2 and a maximal power density of 29 mW/m2 was measured. The absence of sulphide minerals suggests that the biological oxidation of organic molecules at the anode and the iron cycle drives electricity production. The stability of the SMFC environment and the absence of hydrogen sulphide build-up while generating electrical current opens new directions for sustainable management of AMD and the associated sediment.

Број часописа

2024

Укупан број страна рада (уколико не постоји пагинација)

16

DOI број

10.1007/s13762-024-05897-x

ISSN број часописа

1735-1472

Географско подручје на које се односи публикација

Istočna Srbija, Bor

Кључне речи на српском (одвојене знаком ", ")

AMD, jezero u otvorenom kopu, MFC, SMFC, sekundarni minerali

Кључне речи на енглеском (одвојене знаком ", ")

AMD, pit lake, mining waste, MFC, SMFC, secondary minerals

Линк

https://doi.org/10.1007/s13762-024-05897-x

Шира категорија рада према правилнику МПНТ

M20

Ужа категорија рада према правилнику МПНТ

М23

Пројект у склопу кога је настао рад

This work was partially supported by the Ministry of Science, Technological Development, and Innovation of the Republic of Serbia, Contracts No. 451-03-66/2024-03/200126 and 451-03-65/2024-03/200126.

Степен доступности

Затворени приступ

Лиценца

Creative Commons – Attribution 4.0 International

Формат дигиталног објекта

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