Characterization and remediation of soils contaminated with uranium

Gavrilescu, Maria; Pavel, Lucian Vasile; Creţescu, Igor

doi:10.1016/j.jhazmat.2008.07.103

Cited by 504 publications

(220 citation statements)

References 224 publications

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“…This has given rise to notable efforts in the field of environmental science for the development of remediation strategies that aim at the limitation of the health hazard related to the chemical toxicity of uranium (Gavrilescu et al, 2009). In environments for which anoxic conditions can be maintained, a potential approach to addressing this problem is the precipitation of uranium by reducing highly soluble and mobile U(VI) species to less soluble U(IV) species, generally dominated by the mineral uraninite (UO 2 ).…”

Section: Introductionmentioning

confidence: 99%

U(VI) reduction by spores of Clostridium acetobutylicum

Vecchia

Veeramani

Suvorova

et al. 2010

Research in Microbiology

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Vegetative cells of Clostridium acetobutylicum are known to reduce hexavalent uranium (U(VI)). We investigated the ability of spores of this organism to drive the same reaction. We found that spores were able to remove U(VI) from solution when H 2 was provided as an electron donor and to form a U(IV) precipitate. We tested several environmental conditions and found that spent vegetative cell growth medium was required for the process. Electron microscopy showed the product of reduction to accumulate outside the exosporium. Our results point towards a novel U(VI) reduction mechanism, driven by spores, that is distinct from the thoroughly studied reactions in metal-reducing Proteobacteria.

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Section: Introductionmentioning

confidence: 99%

U(VI) reduction by spores of Clostridium acetobutylicum

Vecchia

Veeramani

Suvorova

et al. 2010

Research in Microbiology

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“…Individual can be exposed to uranium by inhalation, ingestion, and dermal contact. Soluble form of concentrated uranium when ingest shows chemotoxic effect to renal tissue which ultimately leads to the failure of kidney (Gavrilescu et al 2009). In addition, zirconium (89Zr, 95Zr, 93Zr, and 88Zr) and thorium ( 232 Th, 230Th, and 229 Th) are other hazardous radioactive nuclides which show risk of cancer and lungs toxicity in humans.…”

Section: Prototheca Zopfimentioning

confidence: 99%

Green remediation. Tool for safe and sustainable environment: a review

et al. 2016

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Nowadays, the bioremediation of toxic pollutants is a subject of interest in terms of health issues and environmental cleaning. In the present review, an ecofriendly, cost-effective approach is discussed for the detoxification of environmental pollutants by the means of natural purifier, i.e., blue-green algae over the conventional methods. Industrial wastes having toxic pollutants are not able to eliminate completely by existing the conventional techniques; in fact, these methods can only change their form rather than the entire degradation. These pollutants have an adverse effect on aquatic life, such as fauna and flora, and finally harm human life directly or indirectly. Cyanobacterial approach for the removal of this contaminant is an efficient tool for sustainable development and pollution control. Cyanobacteria are the primary consumers of food chain which absorbed complex toxic compounds from environments and convert them to simple nontoxic compounds which finally protect higher food chain consumer and eliminate risk of pollution. In addition, these organisms have capability to solve secondary pollution, as they can remediate radioactive compound, petroleum waste and degrade toxins from pesticides.

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“…Significant exposure may occur through environmental remediation of soil, mine, or waste contaminated with uranium, industrial milling, mining, and refining uranium, and in nuclear fuel fabrication and processing [146]. This topic has become a significant issue of late in military conflict, whether that is from depleted uranium (DU) munitions assembly, combat where DU was employed, DU shrapnel exposure, or fighting fires in vehicles struck with DU, which may generate uranium dust.…”

Section: Exposuresmentioning

confidence: 99%