Synthesis of a Goethite Pigment by Selective Precipitation of Iron from Acidic Coal Mine Drainage

Silva, Rodrigo de Almeida; Menezes, Jean Carlo Salomé dos Santos; Lopes, Fabrício Abella; Kirchheim, Ana Paula; Schneider, Ivo

doi:10.1007/s10230-017-0448-2

Cited by 9 publications

(5 citation statements)

References 21 publications

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“…Red ochres are dominated by hematite and yellow ochres are typically dominated by goethite, though jarosite group mineral-rich yellow ochres are of local importance. The definition of ochres also includes ferrihydrite-rich ochre deposits formed as the result of natural acid rock drainage (NARD) and acid mine drainage (AMD) which tend to revert to goethite [10,11]. Such deposits are concentrated in streams and rivers and their locations would have been remarkable as well as colourful to pre-industrial eyes (Figure 1).…”

Section: Ochresmentioning

confidence: 99%

Mineral Pigments in Archaeology: Their Analysis and the Range of Available Materials

Siddall

2018

Minerals

117

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Naturally occurring minerals or their synthetic analogues have been important as pigments used in artistic and cosmetic contexts in global antiquity. The analysis and identification of mineral pigments, though routine to the petrologist or mineralogist, also requires specialist knowledge of the archaeological contexts and available technologies and trade. This paper attempts to present an analytical approach to the study of mineral pigments in archaeology and also introduces the range of mineral pigments encountered in works of art and painted objects on archaeological sites and in museums. It attempts to cover the range of mineral and synthetic inorganic pigments used in global cultures from to the early Medieval period.

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Section: Ochresmentioning

confidence: 99%

Mineral Pigments in Archaeology: Their Analysis and the Range of Available Materials

Siddall

2018

Minerals

117

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“…These minerals are used in a number of fields (biomedicine, agriculture, and environment) such as chromatic science, ferro-fluid technology, information and energy storage, biomedicine, and controlled drug delivery, coal washing and as adsorbents. This is attributed to their high surface area, magnetic properties, cohesion ability, stability at varying temperature gradients and reusability (Chmielewská et al, 2017, Ponomar, 2018, de Almeida Silva et al, 2017. Their non-toxic conduct and biocompatible applications can also be enriched further by special surface coating with organic or inorganic molecules, including surfactants, drugs, proteins, starches, enzymes, antibodies, nucleotides, non-ionic detergents, and polyelectrolytes.…”

Section: Introductionmentioning

confidence: 99%

“…Research studies have explored the use of different waste materials and streams for Fespecies recovery and beneficiation (Akinwekomi et al, 2017, de Almeida Silva et al, 2017.…”

Section: Introductionmentioning

confidence: 99%

Beneficiation of acid mine drainage (AMD): A viable option for the synthesis of goethite, hematite, magnetite, and gypsum – Gearing towards a circular economy concept

Akinwekomi

Maree²,

Masindi

et al. 2020

Minerals Engineering

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Pollution of water resources by acid mine drainage (AMD) has been an issue of primary concern in recent decades, since it negatively affects the environment and its suitability to foster life. As such, efforts to recover, valorise and beneficiate minerals acquired from AMD treatment process have been ongoing, albeit with minimal success. With that in mind, this study unpacks novel ways of beneficiating AMD via the synthesis of valuable minerals with myriads of industrial applications. To this end, real AMD was used to synthesize goethite, hematite, magnetite, and gypsum (product minerals). Drinking water was also reclaimed as part of the treatment process, hence rendering this system a zero-liquid-discharge (ZLD) process. For the synthesis of goethite, hematite, and magnetite, Fe(III) and Fe(II) were recovered via sequential precipitation in batch reactors. Lime was added to treated water to synthesize high-grade gypsum. Furthermore, reverse osmosis (RO) was employed to reclaim drinking water as per South African drinking water standards (SANS 241) specifications. Product minerals were ascertained using advanced analytical techniques. Concisely, this study proved that AMD can be beneficiated into valuable minerals, which could be utilized in a number of industrial applications. The profits from selling the product minerals can potentially aid in offsetting the running costs of the treatment process, hence making this

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“…Also, the recovery of metals from AMD using chemical precipitation produces sludge, and the metal recycling is not a sustainable process . Adsorption, coagulation, chemical precipitation, and integrated filtration and chemical precipitation are some of the other techniques used for iron recovery from AMD. Though biological methods for recovery of metals through passive bioreactors are promising viable alternatives, they require electron donors or substrates to promote and sustain the process. , Microalgae that thrive in any extreme habitats from desert to AMD by their ability to tolerate harsh environmental conditions are implicated in a wide array of biotechnological applications. − Most studies on metal recovery from synthetic solutions used dead algal biomass as the adsorbent, , but the potential of acidophilic microalgae in metal recovery from AMD has not been understood so far.…”

Section: Introductionmentioning

confidence: 99%

“…9 Also, the recovery of metals from AMD using chemical precipitation produces sludge, and the metal recycling is not a sustainable process. 11 Adsorption, 12 coagulation, 13 chemical precipitation, 14 and integrated filtration and chemical precipitation 15 are some of the other techniques used for iron recovery from AMD. Though biological methods for recovery of metals through passive bioreactors are promising viable alternatives, they require electron donors or substrates to promote and sustain the process.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Iron Recovery and Biodiesel Yield by Acid-Adapted Microalgae, Desmodesmus sp. MAS1 and Heterochlorella sp. MAS3, Grown in Synthetic Acid Mine Drainage

et al. 2020

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Sustainable resource recovery is the key to manage the overburden of various waste entities of mining practices. The present study demonstrates for the first time a novel approach for iron recovery and biodiesel yield from two acid-adapted microalgae, Desmodesmus sp. MAS1 and Heterochlorella sp. MAS3, grown in synthetic acid mine drainage (SAMD). Virtually, there was no difference in the growth of the strain MAS3 both in Bold’s basal medium (control) and SAMD. Using the IC50 level (200 mg L–1) and a lower concentration (50 mg L–1) of iron in SAMD, the cell granularity, exopolysaccharide (EPS) secretion, iron recovery, and biodiesel were assessed in both the strains. Both cell granularity and accumulation of EPS were significantly altered under metal stress in SAMD, resulting in an increase in total accumulation of iron. Growth of the microalgal strains in SAMD yielded 12–20% biodiesel, with no traces of heavy metals, from the biomass. The entire amount of iron, accumulated intracellularly, was recovered in the residual biomass. Our results on the ability of the acid-adapted microalgal strains in iron recovery and yield of biodiesel when grown in SAMD indicate that they could be the potential candidates for use in bioremediation of extreme habitats like AMD.

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Synthesis of a Goethite Pigment by Selective Precipitation of Iron from Acidic Coal Mine Drainage

Cited by 9 publications

References 21 publications

Mineral Pigments in Archaeology: Their Analysis and the Range of Available Materials

Mineral Pigments in Archaeology: Their Analysis and the Range of Available Materials

Beneficiation of acid mine drainage (AMD): A viable option for the synthesis of goethite, hematite, magnetite, and gypsum – Gearing towards a circular economy concept

Sustainable Iron Recovery and Biodiesel Yield by Acid-Adapted Microalgae, Desmodesmus sp. MAS1 and Heterochlorella sp. MAS3, Grown in Synthetic Acid Mine Drainage

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