Vanadium-rich slags from the historical processing of Zn–Pb–V ores at Berg Aukas (Namibia): Mineralogy and environmental stability

Ettler, Vojtěch; Mihaljevič, Martin; Jarošíková, Alice; Culka, Adam; Křı́bek, Bohdan; Majer, Vladimı́r; Vaněk, Aleš; Penížek, Vít; Šráček, Ondra; Mapani, Benjamin; Kamona, Fred

doi:10.1016/j.apgeochem.2019.104473

Cited by 7 publications

(2 citation statements)

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“…First, various heavy metals are mixed and concentrated in HMSWs during artificial activities (smelting, concentrating, coprecipitation, etc. ), causing multiple chemical forms of heavy metals (anions, cations, and mixing of anions and cations) in HMSWs . Second, the coexisting phases are also present in various types (silicate, gypsum, spinel, etc.…”

Section: Introductionmentioning

confidence: 99%

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Microinteraction Analysis between Heavy Metals and Coexisting Phases in Heavy Metal Containing Solid Wastes

Deng

Tian

et al. 2022

ACS EST Eng.

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Heavy metal containing solid wastes (HMSWs), the byproduct from industrial activities, bring severe environmental issues and health risks to human. Separating heavy metals from HMSWs for resourcing is the most effective way to mitigate their environmental risk. However, the composition of HMSWs is of great complexity, including various heavy metals with relatively low concentration, as well as coexisting phases with different types and inhomogeneous microstructures. These complexities lead to strong interactions between heavy metals and coexisting phases, causing the incomplete separation of heavy metals. Therefore, understanding their microinteractions is a necessary precondition to realize the full resourcing of HMSWs. This Review focuses on recent achievements for analyzing such microinteractions. Advanced characterization techniques are summarized, by which a multidimensional analysis method is put forward. Then, microinteractions of heavy metals with coexisting phases are clearly discussed, and three typical interactions of aggregation/encapsulation, adsorption, and substituted doping are prudently summarized. It is expected that developing targeted methods to destruct the above interactions is an efficient way to improve the heavy metal separation. Therefore, this Review will provide a sufficient understanding of microstructures in complex HMSWs, which is further expected to promote the technological development on decontamination of HMSWs.

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Section: Introductionmentioning

confidence: 99%

“…), causing multiple chemical forms of heavy metals (anions, cations, and mixing of anions and cations) in HMSWs. 28 Second, the coexisting phases are also present in various types (silicate, gypsum, spinel, etc. ), with complex and inhomogeneous microstructures (blocks, nano crystals, amorphous particles, etc.).…”

Section: Introductionmentioning

confidence: 99%