Use of metallurgical dust for removal chromium ions from aqueous solutions

Pająk, Magdalena; Dzieniszewska, Agnieszka; Kyzioł-Komosińska, Joanna; Chrobok, Michał

doi:10.1051/e3sconf/20182801029

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…With an increase in the initial concentration of Cr(III) from 0.1 to 10 mg L −1 , the pH of the equilibrium solution was constant, higher than that of the initial solution (maximum 5.8 for SO 2− 4 , pH 5.0), and then decreased to maximum 2.71 (Cl − , pH 3.0). The results indicated that the adsorption process may be accompanied by precipitation of chromium hydroxide Cr(OH) 3 for sulfate solutions at initial pH 5.0 and initial Cr concentration of 0.1-10 mg L −1 (Pieczara & Rzepa, 2016;Pajak et al, 2018). The presence of H + ions had significant influence on the adsorption capacity of the adsorbent at initial concentrations above 50 mg L −1 (Fig.…”

Section: Adsorption Of Cr(iii) Ions On Ferrihydritementioning

confidence: 89%

Adsorption and bonding strength of chromium species by ferrihydrite from acidic aqueous solutions

Dzieniszewska

Kyzioł-Komosińska

Pająk

2020

PeerJ

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The adsorption behavior of Cr(III) and Cr(VI) ions onto laboratory-synthesized 2-line ferrihydrite was investigated under a batch method as a function of initial chromium concentration (0.1–1000 mg L−1) and pH (3.0 and 5.0). Moreover, the effect of the type of anion (chloride and sulfate) on Cr(III) adsorption was studied. The affinity of Cr(III) ions for the ferrihydrite surface depended on both the type of anion and pH of the solution and the maximum adsorption capacities decreased as follows: q (SO42−, pH 5.0) > q (SO42−, pH 3.0) > q (Cl−, pH 5.0) > q (Cl−, pH 3.0), and were found to be 86.06 mg g−1, 83.59 mg g−1, 61.51 mg g−1 and 40.67 mg g−1, respectively. Cr(VI) ions were bound to ferrihydrite in higher amounts then Cr(III) ions and the maximum adsorption capacity increased as the pH of the solution decreased and was 53.14 mg g−1 at pH 5.0 and 83.73 mg g−1 at pH 3.0. The adsorption process of Cr species was pH dependent, and the ions were bound to the surface of ferrihydrite by surface complexation. The Sips isotherm was the best-fit model to the results obtained from among the four isotherm models used, i.e., Freundlich, Langmuir, Dubinin-Radushkevich and Sips, indicating different adsorption centers participate in Cr uptake. In order to assess the bonding strength of the adsorbed chromium ions the modified BCR procedure, dedicated to the samples with a high iron content, was used. The results of the sequential extraction showed that Cr(III) ions were bound mainly in the immobile residual fraction and Cr(VI) ions were bound in the reducible fraction. The presence of Fe (oxyhydr)oxides in soil and sediments increases their adsorption capacity for Cr, in particular for hexavalent Cr in an acid environment due to their properties (high pHPZC).

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Section: Adsorption Of Cr(iii) Ions On Ferrihydritementioning

confidence: 89%

Adsorption and bonding strength of chromium species by ferrihydrite from acidic aqueous solutions

Dzieniszewska

Kyzioł-Komosińska

Pająk

2020

PeerJ

Self Cite

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“…Therefore, many studies propose using steel dust in applications where clays are similarly used. They are used as adsorbents to remove toxic and heavy metals from water [22][23][24][25][26][27][28], as catalyst [29][30][31], and for CO 2 sequestration [32,33]. In addition, steel dust was also reported to have been used for drill cuttings disposal [34,35].…”

Section: Introductionmentioning

confidence: 99%

Utilization of Steel-Making Dust in Drilling Fluids Formulations

et al. 2020

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Steelmaking is an energy-intensive process that generates considerable amounts of by-products and wastes, which often pose major environmental and economic challenges to the steel-making industry. One of these by-products is steel dust that is produced during the separation of impurities in the smelting and refining of metals in steel-making furnaces. In this study, electric arc furnace (EAF) dust has been evaluated as a potential, low-cost additive to increase the viscosity and weight of drilling muds. Currently, the cost of drilling operations typically accounts for 50 to 80% of the exploration costs and about 30 to 80% of the subsequent field development costs. Utilization of steelmaking waste in drilling fluids formulations is aimed to produce new and optimized water-based drilling formulations, which is expected to reduce the amount of bentonite and other viscosifier additives used in the drilling formulations. The results showed that in a typical water-based drilling fluid of 8.6 ppg (1030.51 kg/m3), the amount of standard drilling grade bentonite could be reduced by 30 wt.% with the addition of the proposed new additive to complete the required mud weight. The mixture proved to be stable with no phase separation.

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Evaluation of the Metallurgical Dust Sorbent Efficacy in Reactive Blue 19 Dye Removal from Aqueous Solutions and Textile Wastewater

Pająk

Dzieniszewska

2020

Environmental Engineering Science

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Use of metallurgical dust for removal chromium ions from aqueous solutions

Cited by 3 publications

References 21 publications

Adsorption and bonding strength of chromium species by ferrihydrite from acidic aqueous solutions

Adsorption and bonding strength of chromium species by ferrihydrite from acidic aqueous solutions

Utilization of Steel-Making Dust in Drilling Fluids Formulations

Evaluation of the Metallurgical Dust Sorbent Efficacy in Reactive Blue 19 Dye Removal from Aqueous Solutions and Textile Wastewater

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