Design and principles of adsorbent-based reactors for modular wastewater treatment

Chaudhary, Mohit; Jain, Neha; Barman, L.; Bhowmick, G.D.

doi:10.1016/b978-0-323-85421-4.00018-8

Cited by 3 publications

(1 citation statement)

References 105 publications

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“…Capable of effectively removing a broad spectrum of PFAS compounds, ranging from short-chain to long-chain and branched-chain varieties, AC adsorption finds applicability in treating various PFAS-contaminated matrices, encompassing water, soil, sediment, and wastewater. The flexibility of AC adsorption systems is evident in their diverse configurations, such as fixedbed and fluidized-bed adsorbers, with performance influenced by factors like the type of AC used, PFAS characteristics, and operating conditions (Vu et al, 2022;Chaudhary et al, 2022). While AC adsorption systems are designed to achieve removal efficiencies of 90% or greater, it is crucial to acknowledge that they are not flawless solutions, as saturation over time necessitates replacement or regeneration of the AC.…”

Section: Activated Carbon Adsorptionmentioning

confidence: 99%

Environmental Remediation of Perfluoroalkyl Substances: Current and Emerging Strategies

2023

JEES

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Perfluoroalkyl substances (PFAS) represent a significant challenge to environmental systems due to their extensive presence in everyday consumer products and industrial processes, resulting in the contamination of water and soil sources and consequent negative impact on human health. This review aims to provide a comprehensive overview of the current approaches and their potential for mitigating the environmental impact of these persistent substances. By exploring technological advances in the remediation of PFAS, this review intends to contribute to the understanding appropriate technologies to mitigate the environmental risks associated with PFAS. By focusing on combined treatment strategies, synergistic approaches, advanced tools, and addressing knowledge gaps, more efficient, sustainable, and reliable technologies can be developed for the environmental management of contaminants of interest.

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Section: Activated Carbon Adsorptionmentioning

confidence: 99%

Environmental Remediation of Perfluoroalkyl Substances: Current and Emerging Strategies

2023

JEES

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Preparation of novel green adsorbent (Tabernaemontana divaricata leaf powder) and evaluation of its dye (malachite green) removal capacity, mechanism, kinetics, and phytotoxicity

Akanda,

Sohrawordi,

Haque

et al. 2024

South African Journal of Chemical Engineering

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Novel Starch-Modified NiCrMn-LDH-Based Composite for Photocatalytic Degradation of Reactive Orange 13

Usman,

Taj,

Almasoudi

et al. 2024

Catalysts

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Water pollution has become a great challenge today. To address this problem regarding wastewater treatment by removing toxic synthetic dyes from wastewater, this research focused on the synthesis of a novel starch-modified NiCrMn-layered double hydroxide composite through the coprecipitation method and applied it as a photocatalyst for the degradation of reactive orange 13 dye. The synthesized photocatalyst was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), Brunauer–Emmett–Teller (BET), point of zero charges (PZC), dynamic light scattering (DLS), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and Zeta potential techniques. These techniques revealed different characteristics of photocatalysts, like surface and structural properties. According to BET analysis, the final composite had 2.5 × 102 m2/g BET-specific surface area with a 45.56 nm pore radius value, and the overall composite found as mesoporous. Similarly, in DLS analysis, bare NiCrMn-LDH had 404 nm hydrodynamic size, which increased for the final starch composite up to 667 nm. Zeta potential value changed from −14.56 mV to 0.95 mV after the incorporation of starch with NiCrMn-LDH. They confirmed the incorporation of starch with trimetallic NiCrMn-layered double hydroxide (2:1:2). Starch association improved the properties of the photocatalyst like surface area. Different parameters like pH value, initial dye concentration, photocatalyst dose, hydrogen peroxide concentration, effect of sacrificial reagent, and effect of inorganic anions were studied for degradation of RO13. Overall, the photocatalysis process for RO13 followed pseudo-first-order kinetics. Photocatalytic degradation reactions for reactive orange 13 were conducted with an initial dye concentration of 10 mg/L, photocatalyst dosage of 20 mg/50 mL, and pH value at 3 in the presence of sunlight, resulting in an impressive degradation removal rate of 86.68%. This remarkable degradation ability of the photocatalyst for reactive orange 13 proves this composite was highly efficient.

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Design and principles of adsorbent-based reactors for modular wastewater treatment

Cited by 3 publications

References 105 publications

Environmental Remediation of Perfluoroalkyl Substances: Current and Emerging Strategies

Environmental Remediation of Perfluoroalkyl Substances: Current and Emerging Strategies

Preparation of novel green adsorbent (Tabernaemontana divaricata leaf powder) and evaluation of its dye (malachite green) removal capacity, mechanism, kinetics, and phytotoxicity

Novel Starch-Modified NiCrMn-LDH-Based Composite for Photocatalytic Degradation of Reactive Orange 13

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