Bioleaching of a pyritic sludge from the Aznalcóllar (Spain) mine spillage at ambient and elevated temperatures

Hita, Raúl; Wang, Hongmei; Bigham, Jerry M.; Torrent, J.; Tuovinen, Olli H.

doi:10.1016/j.hydromet.2008.03.004

Cited by 12 publications

(3 citation statements)

References 15 publications

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“…Another study focused on remediation of mining spillage composed primarily of pyrite, with some sphalerite and arsenopyrite. In this instance, extreme thermoacidophiles showed much faster kinetics for the dissolution of iron, zinc, and arsenic [398].…”

Section: Polymetallic Ores and Industrial Wastementioning

confidence: 89%

The Confluence of Heavy Metal Biooxidation and Heavy Metal Resistance: Implications for Bioleaching by Extreme Thermoacidophiles

et al. 2015

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Extreme thermoacidophiles (Topt > 65 °C, pHopt < 3.5) inhabit unique environments fraught with challenges, including extremely high temperatures, low pH, as well as high levels of soluble metal species. In fact, certain members of this group thrive by metabolizing heavy metals, creating a dynamic equilibrium between biooxidation to meet bioenergetic needs and mechanisms for tolerating and resisting the toxic effects of solubilized metals. Extremely thermoacidophilic archaea dominate bioleaching operations at elevated temperatures and have been considered for processing certain mineral types (e.g., chalcopyrite), some of which are recalcitrant to their mesophilic counterparts. A key issue to consider, in addition to temperature and pH, is the extent to which solid phase heavy metals are solubilized and the concomitant impact of these mobilized metals on the microorganism's growth physiology. Here, extreme thermoacidophiles are examined from the perspectives of biodiversity, heavy metal biooxidation, metal resistance mechanisms, microbe-solid interactions, and application of these archaea in biomining operations.

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Section: Polymetallic Ores and Industrial Wastementioning

confidence: 89%

The Confluence of Heavy Metal Biooxidation and Heavy Metal Resistance: Implications for Bioleaching by Extreme Thermoacidophiles

et al. 2015

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“…Veta de Agua, Chile; 03. Aguilar et al 2007;Benito et al 2001;Cabrera et al 2008;Hinojosa et al 2008;Hita et al 2008;Hudson-Edwards et al 2003;Macklin et al 2003;Martín et al 2007Martín et al , 2008Ordóñez Fernandez et al 2007;Simón et al 2008Simón et al , 2009Vanderlinden et al 2006;Villarroel et al 2006). Liquefaction may also be caused by mine blasting or nearby motion and vibrations of heavy equipment.…”

Section: Tailings Dam Failuresmentioning

confidence: 99%

Mine Wastes

Lottermoser

2010

354

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“…The findings created a Fe-Cr-Ni-C alloy containing T A B L E 4 Some selected processes for metal recovery from industrial wastewater sludge. [80] Copper converter Precipitation --------96.8 --2.0 1.2 60 Yan et al [32] Electroplating Electrodeposition [19] Electroplating Electrodeposition 11 ---97.04 -----2.0 -80 Yue et al [101] Circuit board Electrodeposition ---4.9 ----99 --3.0 2 50 Yong et al [103] Pyritic sludge Precipitation 44.0 ---0.13 93.0 90 2.0 10 65 Hita et al [104] 66.82% iron, 20.02% chromium, and 4.12% nickel. The recovery rates were also demonstrated.…”

Section: Other Recovery Processes (Pyrometallurgical Treatment)mentioning

confidence: 99%

An overview of metals extraction and recovery from industrial wastewater sludge

Al‐Mutair,

Kumar,

Al‐Mur

et al. 2024

Can J Chem Eng

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Industrial wastewater sludge is one of the vital sources of metals, including heavy metals, valuable metals, and precise metals. Apart from metals' necessity and economic value, some are toxic and harmful to the environment. This review explores the technologies currently applied for extracting and recovering heavy metals from industrial wastewater sludge. The technologies have been explained, and the merits and demerits of methods, as reported in past investigations, have been highlighted. The salient findings of this review are that the hydrometallurgical processes using acid leaching (H2SO4, HNO3, HCl, etc.) have been considered for the metal extraction process. Metal dissolution, concentration/purification, and recovery are the main stages of hydrometallurgical processes. The selection of successive metal recovery methods depends on the concentration of metals and chemical characteristics of industrial wastewater sludge. Different metal purification and concentrations were reported, including adsorption, ion exchange solvent extraction, and so forth, while precipitation and electrodeposition were mainly applied for metal recovery from industrial wastewater sludge. In this review, the cost and economic viability of the metal recovery process are also evaluated by previous reported studies. This review may be considered a valuable source of information for environmentally friendly and cost‐effective methods for metal recovery from industrial wastewater sludge.

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Bioleaching of a pyritic sludge from the Aznalcóllar (Spain) mine spillage at ambient and elevated temperatures

Cited by 12 publications

References 15 publications

The Confluence of Heavy Metal Biooxidation and Heavy Metal Resistance: Implications for Bioleaching by Extreme Thermoacidophiles

The Confluence of Heavy Metal Biooxidation and Heavy Metal Resistance: Implications for Bioleaching by Extreme Thermoacidophiles

Mine Wastes

An overview of metals extraction and recovery from industrial wastewater sludge

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