Groundwater remediation using Magnesium–Aluminum alloys and in situ layered doubled hydroxides

Hu, Hanjun; Ji, Chao; Yang, Xiaojin; Wan, Pingyu; Yuan, Qipeng; Fisher, Adrian C.; Coulon, Frédéric; Hu, Qing

doi:10.1016/j.envres.2021.112241

Cited by 6 publications

(3 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Limestone and lime are commonly used for AMD treatment, but they have many drawbacks, such as the difficulties in maintaining neutral pH, the formation of calcium sulfate suspensions and the disposal of large volumes of sludges [ [47] , [48] , [49] ]. Although Al–Mg alloy is much more expensive than lime, the cost of AMD treatment using Al–Mg alloy can be reduced by using scraps from Al–Mg alloy industries and producing layered double hydroxides (LDH), which has widespread applications in industrial catalysis, soil and water remediation [ [50] , [51] , [52] , [53] ].…”

Section: Resultsmentioning

confidence: 99%

Rapid and effective removal of copper, nitrate and trichloromethane from aqueous media by aluminium alloys

Zhang,

Song,

Chao

et al. 2024

Heliyon

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Rapid and effective removal of copper, nitrate and trichloromethane from aqueous media by aluminium alloys

Zhang,

Song,

Chao

et al. 2024

Heliyon

Self Cite

View full text Add to dashboard Cite

“…To increase the mechanical strength and the corrosion resistance of magnesium, the most common used metal is aluminum. It is believed that at low concentrations of aluminum a layer of Al 2 O 3 forms, which protects the alloy and is less soluble than Mg (OH) 2 [ 38 ]. However, aluminum belongs to the category of metals that promotes Alzheimer’s, so its use is avoided.…”

Section: Characteristics and Toxicity Of Metal Alloy Biomaterialsmentioning

confidence: 99%

Metals Biotribology and Oral Microbiota Biocorrosion Mechanisms

Contuzzi

Casalino

Boccaccio

et al. 2022

JFB

View full text Add to dashboard Cite

During the last decades, metal-based biomaterials have been extensively explored to be used as biocompatible metals for biomedical applications, owing to their superior mechanical properties and corrosion resistance. Consequently, for long-term implanted medical devices, to assure the biomaterials’ reliability, functionality, and biocompatibility, studying the various bio-tribological damage mechanisms to obtain the optimum properties is one of the most important goals. In this review, we consider the most important metal-based biomaterials such as stainless steel, alloys of titanium (Ti), cobalt-chromium (Co-Cr), and Nichel-Titatium (Ni-Ti), as well Magnesium (Mg) alloys and with Tantalum (Ta), emphasizing their characteristics, clinical applications, and deterioration over time. The influence of metal elements on biological safety, including significant effects of metal-based biomaterials in dentistry were discussed, considering the perspectives of surface, mechanical properties, corrosion behaviors, including interactions, bio-mechanisms with tissues, and oral environments. In addition, the role of the oral microbiota was explored due to its role in this erosion condition, in order to further understand the mechanism of metal-based biomaterials implanted on the microflora balance of aerobic and anaerobic bacteria in an oral environment.

show abstract

“…Researchers have improved the combustibility through Al powder modification processes, but most of them are difficult to mass produce in the short term due to technical complexity and cannot meet engineering application requirements. − This article proposes an Al–Mg alloy powder-based water jet propulsion engine system. It intends to use the high boiling point difference characteristics of Al and Mg to fully react with water by destroying the aluminum oxide film in the engine’s hot environment. − …”

Section: Introductionmentioning

confidence: 99%

Kinetic Analysis of the Reaction of Micrometer-Sized Al–Mg Alloy Particles in a Water Vapor Atmosphere

Wei,

Han,

Lei

et al. 2024

Langmuir

View full text Add to dashboard Cite

This study investigated the reaction mechanism of aluminum−magnesium (Al−Mg) alloy particles with water (Al− Mg/H 2 O) through thermogravimetric analysis-differential scanning calorimetry experiments and kinetic analysis using isoconversional methods and the master plot technique to determine the reaction mechanism function, with the aim of providing insights to support metal powder/water ramjet engine design and combustion characteristics. The results showed that the Al−Mg/H 2 O reaction occurred in two distinct stages, with stage 1 primarily involving the reaction of Mg elements in the L(Al−Mg) alloy with water while Al played a leading role in stage 2. Notably, the reaction temperatures of Al−Mg particles were significantly lower than those for either Al or Mg particles alone in a water vapor environment. Additionally, the activation energy of stage 1 was lower than that for the individual Al and Mg particles and decreased with increasing Mg content in stage 2. Furthermore, the concentration of Mg in the alloy was found to have a major influence on the reaction mechanism, which followed a random nucleation and growth model. Overall, this work elucidated an alternating endothermic and exothermic staged reaction process for Al−Mg/H 2 O dominated first by Mg and then Al with kinetic insights providing theoretical support for optimizing Al−Mg alloy compositions for improved ignition and combustion performance in metal powder/water ramjet engines.

show abstract

Groundwater remediation using Magnesium–Aluminum alloys and in situ layered doubled hydroxides

Cited by 6 publications

References 59 publications

Rapid and effective removal of copper, nitrate and trichloromethane from aqueous media by aluminium alloys

Rapid and effective removal of copper, nitrate and trichloromethane from aqueous media by aluminium alloys

Metals Biotribology and Oral Microbiota Biocorrosion Mechanisms

Kinetic Analysis of the Reaction of Micrometer-Sized Al–Mg Alloy Particles in a Water Vapor Atmosphere

Contact Info

Product

Resources

About