Bioleaching combined brine leaching of heavy metals from lead-zinc mine tailings: Transformations during the leaching process

Ye, Maoyou; Yan, Pingfang; Sun, Shuiyu; Han, Dong; Xiao, Xiao; Zheng, Li; Huang, Shaosong; Chen, Yun; Shengwei, Zhuang

doi:10.1016/j.chemosphere.2016.10.095

Cited by 78 publications

(35 citation statements)

References 37 publications

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“…Pb recovery efficiency was low after the bioleaching [28]. Lead sulfate is insoluble in water, but becomes soluble in saturated chloride solutions.…”

Section: Brine Leaching For Pb Recoverymentioning

confidence: 95%

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Production of lead concentrate from bioleached residue tailings by brine leaching followed by sulfide precipitation

Yan

et al. 2017

Separation and Purification Technology

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“…Pb recovery efficiency was low after the bioleaching [28]. Lead sulfate is insoluble in water, but becomes soluble in saturated chloride solutions.…”

Section: Brine Leaching For Pb Recoverymentioning

confidence: 95%

“…1a SEM images, the bioleached residue surface was corroded by bacterial oxidation, and nodular and flaky crystals of secondary minerals randomly covered and adhered on the surface. The secondary minerals were mainly anglesite and gypsum [28].…”

Section: The Mechanism Of Brine Leachingmentioning

confidence: 99%

Production of lead concentrate from bioleached residue tailings by brine leaching followed by sulfide precipitation

Yan

et al. 2017

Separation and Purification Technology

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“…The carcinogenic risk of heavy metals through the inhalation pathway was estimated and calculated using the following equation [38]. (6) …where CR represents the carcinogenic risk and SF represents the carcinogenic slope factor (kg·d -1 ·mg -1 ).…”

Section: Health Risk Assessmentmentioning

confidence: 99%

“…According to the classification of carcinogen by the International Agency for Research on Cancer (IARC), Cd and Cr are identified as human carcinogens (Class I) while Pb is regarded as a probable carcinogen (Class II) [41]. The values used in Equations (4) to (6) are presented in Table 4.…”

Section: Cr = Add × Sfmentioning

confidence: 99%

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Heavy Metals Pollution Characteristics and Health Risk Assessment of Farmland Soils and Agricultural Products in a Mining Area of Henan Province, China

Zhang¹,

He²,

Zhao³

et al. 2020

Pol. J. Environ. Stud.

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The development of mineral resources has promoted the rapid development of the social economy. However, mining and mineral processing are regarded as a primary source of heavy metals contamination in the environment due to activities of mineral excavation, ore transportation, smelting, and refining [1][2][3][4][5]. Among all mining wastes, tailings are a solid waste with especially high toxic heavy metals produced in the process of mining, mineral processing and smelting, which are considered the greatest threat to ecological stability due Pol. AbstractThis research focused on soil contamination and the health risks around a mining area in Henan Province of China. Heavy metals contents in farmland soils and agricultural products were analyzed. The results showed that the soils in the mining area had been polluted by heavy metals to different degrees, whereas the average concentrations of heavy metals in farmland soils had exceeded the background value of Henan Province. Cd was the main pollutant element in soils. Agricultural products grown on farmland near the mining area were heavily polluted by Cd and Pb and slightly polluted by Cr. Furthermore, the health risk to local inhabitants via food ingestion was assessed based on the United States Environmental Protection Agency (USEPA) health risk assessment model. The results showed that the local inhabitants experience high potential health risks by intake of Cd and Pb via consumption of these vegetables. Leafy vegetables had the highest health risks of all agricultural products, whether adults or children, suggesting high health risks by consuming the contaminated agricultural products. Moreover, because children were more sensitively affected by heavy metals from food ingestion, we should pay more attention to monitoring children's health in such areas.

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Bioleaching of oceanic manganese nodules: Current progress and future prospects

Xue

Feng

et al. 2023

Asia-Pacific J Chem Eng

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The extraction of manganese elements and other strategic elements from oceanic manganese nodules has become a strategic decision to ensure the security of global metal resources and the high‐quality green development of metal resource processing and metallurgy industry due to the gradual depletion of high‐quality terrestrial metal resources and the increase of difficult‐to‐select and difficult‐to‐smelt deposits. In order to achieve the enrichment and separation of diverse elements within oceanic manganese nodules, it is imperative to initiate chemical reactions that facilitate the breakdown of complex oxides, particularly manganese dioxide. Bioleaching is a viable treatment option for oceanic manganese nodules with low operating costs and environmental damage. However, the mechanism of oceanic manganese nodules bioleaching is not fully studied, and the prospect of technology development is uncertain. We have reviewed five influencing factors on bioleaching of oceanic manganese nodules: mineralogical characteristics, chemical reaction equilibrium, thermodynamic characteristics, microbial properties, and operational variables. It then makes new development recommendations and technological system suggestions for the future improvement of oceanic manganese nodule bioleaching, primarily focusing on the development of new technologies for challenging to select and difficult to smelt ores, the practicality of strategic energy metal development, the cell design and its materials revolution, environmental protection and management, and all‐round resource utilization. Solving the above critical technical issues will boost the high‐quality development of metal industry and environmental protection.

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Bioleaching combined brine leaching of heavy metals from lead-zinc mine tailings: Transformations during the leaching process

Cited by 78 publications

References 37 publications

Production of lead concentrate from bioleached residue tailings by brine leaching followed by sulfide precipitation

Production of lead concentrate from bioleached residue tailings by brine leaching followed by sulfide precipitation

Heavy Metals Pollution Characteristics and Health Risk Assessment of Farmland Soils and Agricultural Products in a Mining Area of Henan Province, China

Bioleaching of oceanic manganese nodules: Current progress and future prospects

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