Bionanomining: biotechnological synthesis of metal nanoparticles from mining waste—opportunity for sustainable management of mining environmental liabilities

Wong-Pinto, Liey-si; Menzies, Andrew; Ordóñez, Javier I.

doi:10.1007/s00253-020-10353-0

Cited by 29 publications

(13 citation statements)

References 55 publications

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“…Green approaches and natural sources of biochemicals used for synthesis of TiO2 NPs Nowadays, biological methods are gaining more attention due to their characteristics which make them a viable eco-friendly, simple and cost-effective alternative to chemical and physical methods (Wong-Pinto et al, 2020). Practices involving living organisms in the synthesis of NPs are also known as green synthesis methods because they are in accordance with the principles of green chemistry, a concept of sustainable development addressed to the molecular level.…”

Section: Conventional Methods Used For Tio2 Nps Synthesismentioning

confidence: 99%

Green synthesized titanium dioxide nanoparticles and their future applications in biomedicine, agriculture and industry

Miu

Dinischiotu

2021

Rev. Biol. Biomed. Sci.

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In the green synthesis of titanium dioxide nanoparticles (TiO2 NPs) chemical reagents are replaced with biological extracts. Conventional methods used in the manufacture of TiO2 NPs raise environmental issues as they use harmful chemicals and spend a high amount of energy. At a laboratory scale, biologically synthesized titanium dioxide nanoparticles (bio-TiO2 NPs) proved to be a suitable alternative to the chemically synthesized ones. The biological activity of NPs is mainly determined by their shape, size and crystalline structure. However, these characteristics are hardly controlled when natural sources of reagents are used and so bio-TiO2 NPs did not reach an advanced technology readiness level. In this paper, we reviewed the majority of the available studies referring to bio-TiO2 NPs. Our aim is to briefly present the efficiency of biochemicals from different living organisms in producing TiO2 nano-scale particles as well as the benefits bio-TiO2 NPs would bring to the biomedical, agricultural and industrial sectors. Finally, based on the available data we discuss the sustainability of bio-TiO2 NPs referring to their possible environmental, economic and societal impacts.

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Section: Conventional Methods Used For Tio2 Nps Synthesismentioning

confidence: 99%

Green synthesized titanium dioxide nanoparticles and their future applications in biomedicine, agriculture and industry

Miu

Dinischiotu

2021

Rev. Biol. Biomed. Sci.

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“…Chile's well-known mining makes up 13% of the nation's GDP [32]. From this industry, great economic benefit is bestowed upon mining communities, but the dangers of this industry are perhaps even greater.…”

Section: Introductionmentioning

confidence: 99%

“…From this industry, great economic benefit is bestowed upon mining communities, but the dangers of this industry are perhaps even greater. The industry is the culprit behind intensive consumption of oil and water, emission of particulate materials, and the generation of polluting effluents with high content of heavy metals and metalloids, all of which are harmful to the population, and require treatment or mitigation strategies [32,33]. It is estimated that globally, there are approximately 3500 active deposits of mining waste, which consist of rock and tailing dumps [32,34].…”

Section: Introductionmentioning

confidence: 99%

“…The industry is the culprit behind intensive consumption of oil and water, emission of particulate materials, and the generation of polluting effluents with high content of heavy metals and metalloids, all of which are harmful to the population, and require treatment or mitigation strategies [32,33]. It is estimated that globally, there are approximately 3500 active deposits of mining waste, which consist of rock and tailing dumps [32,34]. The increasing demand for essential metals, the decrease in ore grades, and the extraction of complex ore bodies have resulted in larger quantities of loss that require immediate mitigation strategies [32,35,36].…”

Section: Introductionmentioning

confidence: 99%

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Study of the Potential Uses of Hydrochar from Grape Pomace and Walnut Shells Generated from Hydrothermal Carbonization as an Alternative for the Revalorization of Agri-Waste in Chile

et al. 2021

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A myriad of resources and efforts have been devoted to assessing the possibilities of using locally sourced biomass to produce energy, reduce CO2 emissions, and, in turn, lower dependance on petroleum. Grape pomace (GP) and walnut shells (WS) are organic waste generated in Chile. Within the last decade, the potential benefits and application of biomass have received significant attention, both in terms of producing functionalized carbon materials, and the various potential applications in the field of energy storage and environmental protection. The proposed research motivation is on the development of carbonous materials through thermal decomposition processes. Few researchers have addressed the idea of developing a multipurpose carbonaceous matrix from hydrochar, and there remains a need for an efficient method to obtain hydrochar specially from grape pomace. Hence, the general objective of this research is to study the potential of grape pomace and walnut shells treated with hydrothermal carbonization (HTC) as an alternative low-cost and efficient carbonous matrix. Proximate and elemental analysis was determined to distinguish the nature of the feedstock along with the hydrochar produced. Yield and reaction severity were also studied to study the impacts of temperature and residence time for both feedstocks. Successful results from the proposed work have broad applications for increasing the sustainability biomass applications, contributing to a positive economic impact.

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“…The valorization of contaminating industrial or mine waste by micro-and macroorganisms for the biosynthesis of metal nanoparticles is a research field that is not extensively discussed in the literature, but which proves to be emerging, according to the seeking for sustainable processes for effluent treatment and the generation of strategic nanomaterials required to develop technological products [44].…”

Section: Introductionmentioning

confidence: 99%

Recovery of Copper from Leached Tailing Solutions by Biosorption

2020

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Due to the progressive fall of the ore grades and the increasingly refractory composition of minerals, concentrating plants have increased which has led to an increase in the generation of tailings. Tailings, especially those obtained in the past, have remaining copper and other valuable species in quantities that can potentially be recovered, such as gold, silver, vanadium, and rare earth elements which transforms this abundant waste into a potential source of precious or strategic metals for secondary mining. One of the techniques of solid–liquid separation that processes solutions with low concentrations of metals corresponds to adsorption, and more recently biosorption, which is based on the use of biological matrices that do not constitute an environmental liability after application. Biosorption occurs as a consequence of the wide variety of active functional groups present in different types of biomass. Bacterial, fungal, plant, and algal biomasses have been described as biosorbents, mainly for the treatment of diluted and simple solutions. This work aims to recover copper from leached tailings using biomass of the red algae Gracilaria chilensis as a biosorbent. The tailing samples were taken from an abandoned deposit, in the north of Chile, and after an acid leaching copper was biosorbed, kinetics of adsorption and the equilibrium isotherms were studied, applying the Freundlich and Langmuir models. Operational parameters such as adsorbent dose, pH, and initial metal concentration were studied.

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Bionanomining: biotechnological synthesis of metal nanoparticles from mining waste—opportunity for sustainable management of mining environmental liabilities

Cited by 29 publications

References 55 publications

Green synthesized titanium dioxide nanoparticles and their future applications in biomedicine, agriculture and industry

Green synthesized titanium dioxide nanoparticles and their future applications in biomedicine, agriculture and industry

Study of the Potential Uses of Hydrochar from Grape Pomace and Walnut Shells Generated from Hydrothermal Carbonization as an Alternative for the Revalorization of Agri-Waste in Chile

Recovery of Copper from Leached Tailing Solutions by Biosorption

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