Preparation and characterization of zeolite from waste Linz-Donawitz (LD) process slag of steel industry for removal of Fe3+ from drinking water

Samanta, Niladri Shekhar; Banerjee, Sirsak; Mondal, Piyal; Anweshan,; Bora, Utpal; Purkait, Mihir Kumar

doi:10.1016/j.apt.2021.07.023

Cited by 43 publications

(8 citation statements)

References 57 publications

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“…The sample was gold-coated before analysis, and the image was taken at 3 kV and 150k× magnification. The pertinent phases of the lignin powder sample were evaluated using a field emission transmission electron microscopy (FETEM) 2100F (JEOL, Japan) . For the TEM analysis, lignin was dissolved in DMSO solvent.…”

Section: Methodsmentioning

confidence: 99%

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Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Dhara

Samanta

Das

et al. 2023

ACS Appl. Polym. Mater.

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Studies have suggested that ecofriendly, inexpensive, and renewable material sources are essential for developing scalable, high-performance mixed matrix membranes (MMMs). With the fact that the second-most prevalent biomacromolecule in the world of plant biology is lignin, this article delineates the effective fabrication of a lignin-based MMM utilizing polysulfone (PSf) as the base material. The influence of PSf and the lignin concentration on the properties of the fabricated membranes was examined. Also, the developed membranes were assessed for surface morphology, roughness, thickness, thermal stability, functional groups, elemental composition, mechanical strength, and hydrophilicity. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) studies showed that the PSf/lignin membranes possessed a rough and inconsistent morphology and comparatively greater surface porosity. The water contact angle was reduced for the 1.0 wt % PSF/ lignin membrane. Furthermore, lignin nanoparticles significantly impacted the membrane surface characteristics and decreased the ζ potential. Under the ideal experimental scenario, M2 (0.5 wt % lignin/PSf) and M3 (1.0 wt % lignin/PSf) membranes demonstrated good pure water flux values and a higher removal of 98.5 and 98.75% of Cr(VI), respectively. EDX analysis of the membranes after filtration affirmed the effective Cr(VI) removal from water. Owing to its low cost, green credentials, simplicity in synthesis, and remarkable efficiency, the newly developed PSf/lignin membrane is best suited for removing Cr(VI) and various other related contaminants from discharge aqueous effluents.

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Section: Methodsmentioning

confidence: 99%

“…The pertinent phases of the lignin powder sample were evaluated using a field emission transmission electron microscopy (FETEM) 2100F (JEOL, Japan). 19 For the TEM analysis, lignin was dissolved in DMSO solvent. The suspension was pipetted and dropped onto a 300-mesh carbon-coated copper grid.…”

Section: Fabrication Of Psf/lignin Mixed Matrix Membranementioning

confidence: 99%

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Dhara

Samanta

Das

et al. 2023

ACS Appl. Polym. Mater.

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“…The ladle is poured with refined liquid steel comprising some extra impurities in this phase. 10,22 The chemical composition and physical scale rather than commercially accessible material might be beneficial economically and environmentally. Therefore, keeping in mind the economic augmentation possibilities and environmental protection aspects, it is suggested that metals might be recovered from steel making slag following proper treatment techniques.…”

Section: Types and Physicochemical Properties Of Steel Slag (Ss)mentioning

confidence: 99%

“…However, further purification of purified liquid steel through a ladle creates LD-slag. The ladle is poured with refined liquid steel comprising some extra impurities in this phase. , The chemical composition and physical properties of ladle slag and three different SS are enlisted in Table .…”

Section: Types and Physicochemical Properties Of Steel Slag (Ss)mentioning

confidence: 99%

“…The recovery investigation has also reported that the codissolution of inorganic metal oxides such as MgO, Al 2 O 3 , and CaO resulted in acid depletion, however, less dissolution was observed with low acid concentrations. Alternatively, Linz-Donawitz (LD) converter slag, a solid waste produced from the pig iron refining process of the steel industry, , is mostly composed of various metal oxides like CaO, Fe 2 O 3 , Al 2 O 3 , and MnO along with other metal oxides such as vanadium pentoxide (V 2 O 5 ) and TiO 2 . Nowadays, the typical rate of LD-slag formation is about 150–180 kg per tonne of basic steel.…”

Section: Introductionmentioning

confidence: 99%

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An Overview of Precious Metal Recovery from Steel Industry Slag: Recovery Strategy and Utilization

Samanta

Das

Dhara

et al. 2023

Ind. Eng. Chem. Res.

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Steel slag is a solid waste of the steel industry, produced during steel production. Three types of slag, namely electric arc furnace (EAF), basic oxygen furnace (BOF), and Linz-Donawitz processed slag (LD-slag) are the steel industry byproducts. That slag comprises precious elements including zinc (Zn), chromium (Cr), iron (Fe), nickel (Ni), silicon (Si) , aluminum (Al), and vanadium (V) and is considered a secondary source of many metals. These metal constituents can be recovered from slags by employing mineral processing techniques like crushing, grinding, magnetic separation, eddy current separation, flotation, leaching, and/or roasting. Metal extraction from steelmaking slag and slag utilization is essential not only for conserving metal supplies but also for environmental protection. This review article evaluated and summarized various extraction methods including magnetic separation, roasting, pyrometallurgical method, hydrometallurgical and bio hydrometallurgical technique to recover precious metal constituents from obtained slag. The state-of-the-art of metal recovery from slag using the aforementioned methodologies and the merits, and demerits of each procedure have been illustrated comprehensively. Suggestions have been made to overcome the shortfall and or lacuna of the technology for better performance and efficiency. The opportunities and difficulties portion of this article paints a vivid picture of turning such a beneficial technology into a more adaptable procedure with some additions that may motivate and lead future research in new directions. The essence of this survey indicates that extracted metal and treated slag might be reutilized in various fields ranging from biomedical to fertilizer applications.

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MnO₂@Al‐BDC nanocomposite as adsorbent of remarkable high efficiency toward iron remediation from wastewaters

Said,

Sayed,

Aly

et al. 2024

Applied Organom Chemis

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Global environmental problems, especially those related to water contamination brought on by rapid industrialization and economic growth, are among the most dangerous threats facing humanity today. In this research work, Al3+ based metal–organic framework with 1,4‐benzenedicarboxylic acid (H2BDC) linker has been synthesized by a simple and economic coprecipitation method. The obtained Al‐BDC MOF was utilized as an adsorbent for sequestering iron from wastewater, but only 54.0% of iron concentration was eliminated after 120 min. To boost the removal efficiency, modification of the Al‐BDC MOF was carried out. MnO2@Al‐BDC nanocomposite was prepared and applied as a nanoadsorbent for iron remediation from water. The adsorption capability of Al‐BDC MOF was greatly enhanced by facile modification. The adsorption efficiency reached 97.0% using 35.0 mg of the nanocomposite after 120 min compared to 54.0% iron removal using the un‐modified MOF. The effect of pH of the medium was then studied using MnO2@Al‐BDC nanocomposite. The best elimination efficacy of iron was accomplished at pH ~ 2.2. The adsorption of iron on the surface of MnO2@Al‐BDC nanocomposite attains 97.0% (120 min) using a 35.0 mg dose of adsorbent and reaches 98.7% utilizing a 50.0 mg dose of adsorbent. In contrast, at pH = 9.2, the removal efficiency drops to 90.0% (after 120 min, 35.0 mg adsorbent). The adsorption capability was examined also using a variety of iron concentrations, i.e., 2.5, 5.0, and 7.5 mg/L where the adsorption efficiency dropped notably upon increasing the concentration. It dropped from 96.3% to 87.0% using 35.0 mg of MnO2@Al‐BDC nanocomposite at 90 min. The newly developed adsorbent showed a pronounced efficiency for Fe3+ removal against real samples collected from different water sources. Ultimately, this research introduces a novel MnO2@Al‐BDC nanocomposite, synthesized through a simple and economical coprecipitation method, to address water contamination by iron. The innovation lies in the significant enhancement of iron elimination efficiency, from 54.0% with unmodified Al‐BDC MOF to 97.0% with the MnO2@Al‐BDC nanocomposite.

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Preparation and characterization of zeolite from waste Linz-Donawitz (LD) process slag of steel industry for removal of Fe3+ from drinking water

Cited by 43 publications

References 57 publications

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

An Overview of Precious Metal Recovery from Steel Industry Slag: Recovery Strategy and Utilization

MnO₂@Al‐BDC nanocomposite as adsorbent of remarkable high efficiency toward iron remediation from wastewaters

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Preparation and characterization of zeolite from waste Linz-Donawitz (LD) process slag of steel industry for removal of Fe3+ from drinking water

Cited by 43 publications

References 57 publications

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

Ravenna Grass-Extracted Alkaline Lignin-Based Polysulfone Mixed Matrix Membrane (MMM) for Aqueous Cr(VI) Removal

An Overview of Precious Metal Recovery from Steel Industry Slag: Recovery Strategy and Utilization

MnO2@Al‐BDC nanocomposite as adsorbent of remarkable high efficiency toward iron remediation from wastewaters

Contact Info

Product

Resources

About

MnO₂@Al‐BDC nanocomposite as adsorbent of remarkable high efficiency toward iron remediation from wastewaters