Red mud a byproduct of aluminum production contains soluble vanadium that causes genotoxic and cytotoxic effects in higher plants

Mišík, Miroslav; Burke, Ian T.; Reismüller, Matthias; Pichler, Clemens; Rainer, Bernhard; Mišíková, Katarína; Mayes, William M.; Knasmueller, Siegfried

doi:10.1016/j.scitotenv.2014.06.052

Cited by 65 publications

(24 citation statements)

References 36 publications

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“…Whilst there have been no published studies on application of residue leachates to soils and substrates, Lehoux et al 2013 2013). Soluble V in the pH 11.1 treatment was a magnitude of 10 times lower than values reported likely to cause genotoxic effects in plants (Mišík et al 2014). Although leachate additions in the current study raised substrate pH levels, all values were considerably lower than pH 9.…”

Section: Discussioncontrasting

confidence: 65%

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The potential for constructed wetlands to treat alkaline bauxite-residue leachate: Phragmites australis growth

Higgins

Curtin

Pawlett

et al. 2016

Environ Sci Pollut Res

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High alkalinity (pH > 12) of bauxite-residue leachates presents challenges for the long-term storage and managements of the residue. Recent evidence has highlighted the potential for constructed wetlands to effectively buffer the alkalinity, but there is limited evidence on the potential for wetland plants to establish and grow in soils inundated with residue leachate. A pot-based trial was conducted to investigate the potential for Phragmites australis to establish and grow in substrate treated with residue leachate over a pH range of 8.6-11.1. The trial ran for 3 months, after which plant growth and biomass were determined. Concentrations of soluble and exchangeable trace elements in the soil substrate and also in the aboveground and belowground biomass were determined. Residue leachate pH did not affect plant biomass or microbial biomass. With the exception of Na, there was no effect on exchangeable trace elements in the substrate; however, increases in soluble metals (As, Cd and Na) were observed with increasing leachate concentration. Furthermore, increases in Al, As and V were observed in belowground biomass and for Cd and Cr in aboveground biomass. Concentrations within the vegetation biomass were less than critical phytotoxic levels. Results demonstrate the ability for P. australis to grow in bauxite-residue leachate-inundated growth media without adverse effects.

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Section: Discussioncontrasting

confidence: 65%

“…Although leachate additions in the current study raised substrate pH levels, all values were considerably lower than pH 9. Mišík et al (2014) suggested that pH control of soil to pH 9 in residue affected soils would mitigate high aqueous concentrations phytotoxic effects.…”

Section: Discussionmentioning

confidence: 99%

The potential for constructed wetlands to treat alkaline bauxite-residue leachate: Phragmites australis growth

Higgins

Curtin

Pawlett

et al. 2016

Environ Sci Pollut Res

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“…Chemical analyses has shown that it also contains radionuclides (e.g. 40 K, 226 Ra, and 230 Th), as well as, heavy metals such as Cd, Co, Cr, Ni and V [4].…”

Section: Introductionmentioning

confidence: 99%

Application of modified red mud in environmentally-benign applications: A review paper

Joseph

Taufiq‐Yap

Krishnan

et al. 2019

Environmental Engineering Research

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Red mud (RM) is a waste product that results from bauxite refining via the Bayer process. Its disposal remains an issue which raises significant environmental concerns, particularly if disposed on land or water bodies. Much research has been done on the use of red mud for environmentally-benign applications such as wastewater treatment, catalysis, the production of construction materials and glass ceramics, and for the recovery of metals. This paper reviews the current efforts made in the utilization of red mud as a valuable industrial by-product, which in turn should minimize its harmful impact on the environment. This detailed review compiles and highlights a variety of novel applications of modified red mud as a coagulant, an adsorbent for wastewater treatment, as well as, its use in catalytic processes and in building materials. The physico-chemical properties of red mud can be tuned by a range of treatment methods include acidification, neutralization and heat treatment. As revealed from the literature reviewed, modifications on red mud for the removal of various types of contaminants have shown promising results. However, further amendment and modifications on red mud are needed to utilize this industrial waste in many other industrial applications.

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“…Although there are no CSBTS and SQG levels for V, it is present at concentrations well above the Dutch intervention standards. This is of particular concern due to the noted mobility of V in waters in contact with red mud (Burke et al, 2012Lehoux et al, 2013;Mišík et al, 2014).…”

Section: Comparison Of Total Heavy Metals In Rm and Relevant Environmmentioning

confidence: 99%

Use of bauxite residue (red mud) as a low cost sorbent for sulfide removal in polluted water remediation

Sheng

Sun

Sun³

et al. 2016

Water Science and Technology

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Abstract:Sulfide is an important pollutant in aqueous systems. Sulfide removal from polluted waters is required prior to discharge. Red mud (RM) is a solid waste of bauxite processing that is rich in reactive iron oxides and consequently has the potential to be used to remove sulfide from aqueous systems. A series of experiments were undertaken using raw and sintered RM to remove sulfide from waters. RM was highly efficient at sulfide removal (average 75% sulfide removal at initial concentration of ~5 mg L -1 , with 500 mg L -1 RM addition) due to both physical adsorption (high specific area) and chemical reaction (with amorphous Fe). Sintered RM, which has a lower surface area and lower mineral reactivity, was much less efficient at removing sulfide (~20% removal under equivalent experimental conditions). Furthermore, concomitant metal release from raw RM was lower than for sintered RM during the sulfide removal process. The results showed that raw RM is a potentially suitable material for sulfide removal from polluted waters and consequently could be used as a low cost alternative treatment in certain engineering applications.

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Red mud a byproduct of aluminum production contains soluble vanadium that causes genotoxic and cytotoxic effects in higher plants

Cited by 65 publications

References 36 publications

The potential for constructed wetlands to treat alkaline bauxite-residue leachate: Phragmites australis growth

The potential for constructed wetlands to treat alkaline bauxite-residue leachate: Phragmites australis growth

Application of modified red mud in environmentally-benign applications: A review paper

Use of bauxite residue (red mud) as a low cost sorbent for sulfide removal in polluted water remediation

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