Heterotrofné lúhovanie a jeho využitie v biohydrometalurgii

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  • M. Kolenčík Katedra pedológie a geológie, Fakulta agrobiológie a potravinových zdrojov, Slovenská poľnohospodárska univerzita v Nitre, Nitra, Slovensko | Centrum nanotechnologií, VŠB – TU Ostrava, Ostrava, Česká republika
  • M. Urík Ústav laboratórneho výskumu geomateriálov, Prírodovedecká fakulta, Univerzita Komenského v Bratislave, Bratislava, Slovensko
  • J. Štubňa Gemologický ústav, Fakulta prírodných vied, Univerzita Konštantína Filozofa, Nitra, Slovensko

Klíčová slova:

bioprocesy, heterotrofné lúhovanie, biogeochemické cykly, biohydrometalurgia

Abstrakt

Heterotrophic leaching is a common process proceeding in biogeochemical cycles of various essential macro- and micronutrients as well as trace elements in the environment. Microorganisms, especially filamentous fungi play a key role in bioleaching. Due to their extensive metabolic activities, which relate to enormous production of various exometabolites, the interactions of microorganisms with solid substrates with incorporated metals results in significant changes in their distribution in environment, mobility, bioavailability as well as toxicity. The heterotrophic leaching is based on acidification, complexation and redox reactions. These processes can be used in biohyd­rometallurgical recycling of metals from waste materials. However, to achieve a good efficiency, the process must be well understood and the optimization of extraction conditions is necessary. Heterotrophic bioleaching is an appropriate alternative in metal recovery from various sources.

Publikováno

15.11.2014

Jak citovat

Kolenčík, M., Urík, M., & Štubňa, J. (2014). Heterotrofné lúhovanie a jeho využitie v biohydrometalurgii. Chemické Listy, 108(11), 1040–1045. Získáno z http://ww.w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/435

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