Recent advances in the treatment of contaminated soils by ball milling technology: Classification, mechanisms, and applications

Wei, Ming; Wang, Bing; Miao, Chang; Lyu, Honghong; Lee, Xinqing; Wang, Shengsen; Yu, Zebin; Zhang, Xueyang

doi:10.1016/j.jclepro.2022.130821

Cited by 29 publications

(6 citation statements)

References 114 publications

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“…The mechanochemical leaching experiment is conducted using the equipment of a planetary ball mill (Figure a). The optimum technological parameters in the mechanochemical leaching of Mn from EMR are explored to optimize the extraction conditions of manganese by studying the influence of different factors . According to Figure b, the leaching efficiency of insoluble manganese dramatically increased with increased ball milling speed.…”

Section: Resultsmentioning

confidence: 99%

“…The optimum technological parameters in the mechanochemical leaching of Mn from EMR are explored to optimize the extraction conditions of manganese by studying the influence of different factors. 37 According to Figure 2b, the leaching efficiency of insoluble manganese dramatically increased with increased ball milling speed. When the speed was 0 rpm, only soluble Mn was leached.…”

Section: Factors Affecting the Mechanochemical Leaching Of Mnmentioning

confidence: 99%

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Natural Pyrite-assisted Mechanochemical Recovery of Insoluble Manganese from Electrolytic Manganese Residue: Kinetics and Mechanisms

Xiang,

Yang,

Liu

et al. 2023

ACS EST Eng.

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Numerous traditional methods have been applied to extracting manganese from electrolytic manganese residue (EMR). However, most of them focused on the recovery of water-soluble manganese from EMR, while insoluble manganese, whose content is usually high in EMR, was generally ignored. Herein, the recovery of insoluble manganese in EMR was systematically investigated by a natural pyrite-assisted mechanochemical method. The recovery efficiency of insoluble manganese exceeded 86%, and the leaching efficiency of iron was lower than 1% under optimal conditions (the pyrite/EMR mass ratio of 4% and mechanochemical treatment at 300–500 rpm for 120 min). Toxicity characteristic leaching procedure experiments showed that after treatment the leaching concentration of manganese decreased by more than 12 times, and ammonia nitrogen decreased by 27 times, which met the regulatory discharge limit (GB/T 8978-1996). Tescan integrated mineral analyzer analysis directly confirmed that the insoluble Mn(IV) in treated EMR was completely reduced to soluble Mn(II), and iron was solidified in the forms of Fe–S-(Si–Al–O) and pyrrhotite. A potential mechanism could be that the insoluble manganese encapsulated in EMR matrix was exposed to the particle surface by the mechanochemical reaction; whereafter, the redox reaction between pyrite and insoluble Mn(IV) was facilitated by the generated crystal defects and surfaces with dangling bonds under mechanochemical action. This study provides a direction for the resource utilization of insoluble Mn(IV) in EMR and also expands the theoretical basis for exploring the reduction mechanism of pyrite-assisted mechanochemical method.

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Section: Resultsmentioning

confidence: 99%

Section: Factors Affecting the Mechanochemical Leaching Of Mnmentioning

confidence: 99%

Natural Pyrite-assisted Mechanochemical Recovery of Insoluble Manganese from Electrolytic Manganese Residue: Kinetics and Mechanisms

Xiang,

Yang,

Liu

et al. 2023

ACS EST Eng.

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“…It primarily involves mixing the raw metal oxides or metal salts of high purity stoichiometrically with a few drops of methanol and then grinding them using a high-energy ball machine over time [ 179 ]. The most important benefit of this method is that samples can be synthesised without any solvent [ 180 ]. The synthesis of Co 1−x Zn x Fe 2 O 4 (x = 0 and 0.5) spinel ferrite NPs using different methods showed that the solid-state method readily produced particle sizes at the nanoscale [ 181 ].…”

Section: Synthesis Methods Of Ferritesmentioning

confidence: 99%

Advances in the Synthesis and Application of Magnetic Ferrite Nanoparticles for Cancer Therapy

et al. 2022

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Cancer is among the leading causes of mortality globally, with nearly 10 million deaths in 2020. The emergence of nanotechnology has revolutionised treatment strategies in medicine, with rigorous research focusing on designing multi-functional nanoparticles (NPs) that are biocompatible, non-toxic, and target-specific. Iron-oxide-based NPs have been successfully employed in theranostics as imaging agents and drug delivery vehicles for anti-cancer treatment. Substituted iron-oxides (MFe2O4) have emerged as potential nanocarriers due to their unique and attractive properties such as size and magnetic tunability, ease of synthesis, and manipulatable properties. Current research explores their potential use in hyperthermia and as drug delivery vehicles for cancer therapy. Significantly, there are considerations in applying iron-oxide-based NPs for enhanced biocompatibility, biodegradability, colloidal stability, lowered toxicity, and more efficient and targeted delivery. This review covers iron-oxide-based NPs in cancer therapy, focusing on recent research advances in the use of ferrites. Methods for the synthesis of cubic spinel ferrites and the requirements for their considerations as potential nanocarriers in cancer therapy are discussed. The review highlights surface modifications, where functionalisation with specific biomolecules can deliver better efficiency. Finally, the challenges and solutions for the use of ferrites in cancer therapy are summarised.

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“…Therefore, if these materials are subjected to high-energy ball mill operations, the strong blows from the steel balls and the rotational movement of the mill set cause the bonds in the polymer and boric acid to change greatly [32,33]. Relatively weak material bonds are broken or deformed a lot during this process [34][35][36]. The energy entered into the molecules in the form of temporary shape change is stored as potential energy in the structure of the material to be used in the next step.…”

Section: Effect Of Mechanical Activationmentioning

confidence: 99%

Influences of mechanical activation and tartaric acid addition on the efficiency of B4C synthesis

et al. 2023

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In this paper, mechanical activation and tartaric acid addition were employed to reduce the residual carbon and intensify the efficiency of B4C synthesis using glucose and boric acid as starting materials. To investigate the role of mechanical activation on synthesis performance, one sample was subjected to high-energy ball milling before pyrolysis and the other after pyrolysis. To study the role of additives, in the precursor production stage, on synthesis efficiency and residual carbon reduction, different amounts of tartaric acid (0, 5, 10, 25, and 50 wt%) were tested. FT-IR and XRD analyses were used to characterize the bonds created in the precursors and the phases formed during the pyrolysis and synthesis steps, respectively. The results confirmed that mechanical activation before synthesis can improve the synthesis efficiency, but ball milling before pyrolysis did not significantly affect the final synthesis product. The addition of tartaric acid enhanced the formation of B–C bonds; hence, it increased the efficiency of B4C synthesis. The optimum additive amount was 25 wt% and higher amounts weakened the synthesis performance.

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Recent advances in the treatment of contaminated soils by ball milling technology: Classification, mechanisms, and applications

Cited by 29 publications

References 114 publications

Natural Pyrite-assisted Mechanochemical Recovery of Insoluble Manganese from Electrolytic Manganese Residue: Kinetics and Mechanisms

Natural Pyrite-assisted Mechanochemical Recovery of Insoluble Manganese from Electrolytic Manganese Residue: Kinetics and Mechanisms

Advances in the Synthesis and Application of Magnetic Ferrite Nanoparticles for Cancer Therapy

Influences of mechanical activation and tartaric acid addition on the efficiency of B4C synthesis

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