Selenite sorption onto goethite: isotherm and ion-competitive studies, and effect of pH on sorption kinetics

Matulová, Michaela; Urík, Martin; Bujdoš, Marek; Duborská, Eva; Cesnek, Martin; Miglierini, Marcel

doi:10.1007/s11696-019-00847-1

Cited by 21 publications

(9 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have previously reported that the ferric oxyhydroxides have a great affinity for both dominant oxygenated species of selenium in acidic solutions [26,27]. Here, our results showed that after 24 h the amount of removed selenate by amorphous ferric oxyhydroxides reached 45%.…”

Section: Discussionsupporting

confidence: 66%

See 1 more Smart Citation

Fungal Mobilization of Selenium in the Presence of Hausmannite and Ferric Oxyhydroxides

Farkas

Vojtková

Bujdoš

et al. 2021

JoF

Self Cite

View full text Add to dashboard Cite

Bioleaching of mineral phases plays a crucial role in the mobility and availability of various elements, including selenium. Therefore, the leachability of selenium associated with the surfaces of ferric and manganese oxides and oxyhydroxides, the prevailing components of natural geochemical barriers, has been studied in the presence of filamentous fungus. Both geoactive phases were exposed to selenate and subsequently to growing fungus Aspergillus niger for three weeks. This common soil fungus has shown exceptional ability to alter the distribution and mobility of selenium in the presence of both solid phases. The fungus initiated the extensive bioextraction of selenium from the surfaces of amorphous ferric oxyhydroxides, while the hausmannite (Mn3O4) was highly susceptible to biodeterioration in the presence of selenium. This resulted in specific outcomes regarding the selenium, iron, and manganese uptake by fungus and residual selenium concentrations in mineral phases as well. The adverse effects of bioleaching on fungal growth are also discussed.

show abstract

Section: Discussionsupporting

confidence: 66%

“…We have previously reported that the ferric oxyhydroxides have a great affinity for both dominant oxygenated species of selenium in acidic solutions [26,27]. Here, our re-…”

Section: Discussionmentioning

confidence: 64%

Fungal Mobilization of Selenium in the Presence of Hausmannite and Ferric Oxyhydroxides

Farkas

Vojtková

Bujdoš

et al. 2021

JoF

Self Cite

View full text Add to dashboard Cite

show abstract

“…The most studied iron-based materials are two oxides, hematite Fe 2 O 3 and magnetite Fe 3 O 4 , and an oxy-hydroxide, goethite (FeOOH), a most stable varieties of iron(III) oxy-hydroxide with surface area lower than 20 m 2 /g. These oxides are natural, inexpensive and effective Chao 1987, 1990;Hayes et al 1987;Zhang and Sparks 1990;Glasauer et al 1995;Lo and Chen 1997;Zingaro et al 1997;Peak and Sparks 2002;Su and Suarez 2000;Duc et al 2006;Rovira et al 2008;Sandy and DiSante 2010;Sharrad et al 2012;Simeonidis et al 2016;Kalaitzidou et al 2019;Kawamoto et al 2019;Matulova et al 2019;Rene et al 2019;Sharma et al 2019). The affinity for Se(VI) is always greater than for Se(IV) and the mechanisms are mainly due to surface complexation by formation of Lewis acid-base complexes, and precipitation, e.g.…”

Section: Metal Oxidesmentioning

confidence: 99%

“…The high affinity of this iron oxy-hydroxide with oxyanions is promising for selenium removal from drinking water in full-scale water treatment plants. Matulova et al (2019) demonstrated that goethite, one of the most common oxy-hydroxides in the environment, is efficient as adsorbent to remove selenite; this method is viable although the performance depend on the pH and the presence of anions such as sulfate and chloride.…”

Section: Metal Oxidesmentioning

confidence: 99%

Technologies to Remove Selenium from Water and Wastewater

Lichtfouse

Morin‐Crini

Bradu

et al. 2021

Environmental Chemistry for a Sustainable World

View full text Add to dashboard Cite

After major pollution by nitrates and pesticides, soils and groundwater in some parts of the world are now facing the emergence of a third major issue of selenium (Se) contamination. Selenium occurrence in ecosystems results naturally from weathering of Se-containing rocks, and is further aggravated by human activities. Selenium is ubiquitous in the environment, and the two main sources of human exposure by Se are food and water. Se, a metalloid, is an important micronutrient due to Se antioxidant, anti-inflammatory and chemo-preventative properties. At normal dietary doses, selenium is an essential diet element that has nutritional proper-E. Lichtfouse (*)

show abstract

“…The abrupt media alkalization to co-precipitate ferric phases seems less suitable for the removal of selenites and selenates, because of their low affinity towards hydrated ferric iron precipitates' surfaces at neutral or alkalic pH regions [35,36]. Still, as a secondary effect, the presence of high concentrations of selenium oxyanions may significantly hinder the kinetics of ferric oxyhydroxide precipitation and crystal growth.…”

Section: Introductionmentioning

confidence: 99%

The Effect of High Selenite and Selenate Concentrations on Ferric Oxyhydroxides Transformation under Alkaline Conditions

Matulová

Bujdoš

Miglierini

et al. 2021

IJMS

Self Cite

View full text Add to dashboard Cite

Iron-based nanomaterials have high technological impacts on various pro-environmental applications, including wastewater treatment using the co-precipitation method. The purpose of this research was to identify the changes of iron nanomaterial’s structure caused by the presence of selenium, a typical water contaminant, which might affect the removal when the iron co-precipitation method is used. Therefore, we have investigated the maturation of co-precipitated nanosized ferric oxyhydroxides under alkaline conditions and their thermal transformation into hematite in the presence of selenite and selenate with high concentrations. Since the association of selenium with precipitates surfaces has been proven to be weak, the mineralogy of the system was affected insignificantly, and the goethite was identified as an only ferric phase in all treatments. However, the morphology and the crystallinity of ferric oxyhydroxides was slightly altered. Selenium affected the structural order of precipitates, especially at the initial phase of co-precipitation. Still, the crystal integrity and homogeneity increased with time almost constantly, regardless of the treatment. The thermal transformation into well crystalized hematite was more pronounced in the presence of selenite, while selenate-treated and selenium-free samples indicated the presence of highly disordered fraction. This highlights that the aftermath of selenium release does not result in destabilization of ferric phases; however, since weak interactions of selenium are dominant at alkaline conditions with goethite’s surfaces, it still poses a high risk for the environment. The findings of this study should be applicable in waters affected by mining and metallurgical operations.

show abstract

Selenite sorption onto goethite: isotherm and ion-competitive studies, and effect of pH on sorption kinetics

Cited by 21 publications

References 47 publications

Fungal Mobilization of Selenium in the Presence of Hausmannite and Ferric Oxyhydroxides

Fungal Mobilization of Selenium in the Presence of Hausmannite and Ferric Oxyhydroxides

Technologies to Remove Selenium from Water and Wastewater

The Effect of High Selenite and Selenate Concentrations on Ferric Oxyhydroxides Transformation under Alkaline Conditions

Contact Info

Product

Resources

About