Simultaneous adsorption of organic and inorganic micropollutants from rainwater by bentonite and bentonite‑carbon nanotubes composites

Marszałek, Anna; Kamińska, Gabriela; Salam, Noura Fathy Abdel

doi:10.1016/j.jwpe.2021.102550

Cited by 13 publications

(2 citation statements)

References 67 publications

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“…No evident change in the pore size of the foam was found when we raised the temperature of the bentonite treatment to 600 °C. However, the temperature treatment at 700 °C and 800 °C leads to an enlargement of the pores of the composite foam, reaching 1.83 mm and 2.18 mm, respectively, for BS-700 and BS-800 [ 42 ]. Therefore, by increasing the APS, the apparent density decreases; in particular, a 45.2% decrease from sample BS-300 to sample BS-800 was calculated.…”

Section: Resultsmentioning

confidence: 99%

Sorption Capacity of Polydimethylsiloxane Foams Filled with Thermal-Treated Bentonite—Polydimethylsiloxane Composite Foams for Oil Spill Remediation

et al. 2023

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The spillage of oil causes severe and long-lasting impacts on both the environment and human life. It is crucial to carefully reconsider the methods and techniques currently employed to recover spilled oil in order to prevent any possible secondary pollution and save time. Therefore, the techniques used to recover spilled oil should be readily available, highly responsive, cost-effective, environmentally safe, and, last but not least, they should have a high sorption capacity. The use of sorbents obtained from natural materials is considered a suitable approach for dealing with oil spills because of their exceptional physical characteristics that support sustainable environmental protection strategies. This article presents a novel sorbent material, which is a composite siloxane foam filled with bentonite clay, aimed at enhancing the hydrophobic and oleophilic behavior of the material. The thermal treatment of bentonite optimizes its sorption capacity by eliminating water, and increasing the surface area, and, consequently, its interaction with oils. In particular, the maximum sorption capacity is observed in kerosene and naphtha for the bentonite clay thermally treated at 600 °C, showing an uptake at saturation of 496.8% and 520.1%, respectively. Additionally, the reusability of the composite foam is evaluated by squeezing it after reaching its saturation point to determine its sorption capacity and reusability.

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Section: Resultsmentioning

confidence: 99%

Sorption Capacity of Polydimethylsiloxane Foams Filled with Thermal-Treated Bentonite—Polydimethylsiloxane Composite Foams for Oil Spill Remediation

et al. 2023

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“…In this scienti c research theme, various sorbent materials such as MgO-K-BC [22], zeolite, carbon nanotubes [23], carboxylfunctionalized MOFs [24], modi ed rice husk [25], Zein ber [26], zwitterionic hydrogel [27], coal-analcime composite [28],…”

Section: Introductionmentioning

confidence: 99%

Application of chitosan-citric acid variant resins in the cyclic sorption-desorption of toxic ions from Zn dominant Adsorbate system

Patel,

Pandey,

Uppaluri

2024

Preprint

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Targeted sorbents for the real-world adsorptive separation of heavy metals shall exhibit high sorption capacity, reusability, and cost-effectiveness. In this study, a novel composite sorbent has been synthesized for the concurrent mitigation of iron, lead, and zinc metal ions from synthetic wastewater systems. For this purpose, chitosan with alternate molecular weight (low, medium, and high) and with hydroxyl and amine functional groups was employed as a substrate. The successful anchoring of the organic compound citric acid was achieved with the glutaraldehyde crosslinker. The work focused on the concurrent elimination of iron, lead, and zinc ions under diverse conditions of sorbent dose (0.2 to 2 g L− 1), initial concentration (194.9-584.7 mg L− 1, 2.65–7.95 mg L− 1, and 104.8-314.4 mg L− 1 respectively for zinc, lead, and iron), and adsorbent contact duration (5 to 720 min). Accordingly, it was ascertained that other alternative ions in the adsorbate system significantly alter the sorption patterns. Following this, the desorption of metal ions was effective with simple basic and acidic eluents and for a three-cycle-based simultaneous regeneration. In summary, the findings demonstrate the promising performance of the sorbent for metal ions eradication from intricate solutions.

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A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

El Alouani,

Aouan,

Bassam

et al. 2024

Studies in Big Data

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Simultaneous adsorption of organic and inorganic micropollutants from rainwater by bentonite and bentonite‑carbon nanotubes composites

Cited by 13 publications

References 67 publications

Sorption Capacity of Polydimethylsiloxane Foams Filled with Thermal-Treated Bentonite—Polydimethylsiloxane Composite Foams for Oil Spill Remediation

Sorption Capacity of Polydimethylsiloxane Foams Filled with Thermal-Treated Bentonite—Polydimethylsiloxane Composite Foams for Oil Spill Remediation

Application of chitosan-citric acid variant resins in the cyclic sorption-desorption of toxic ions from Zn dominant Adsorbate system

A Mini-Review on Natural and Modified Clays for Removal of Organic and Inorganic Pollutants From Wastewater and Their Other Applications

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