Membrane separation technologies for downstream processing

Saravanan, A.; Kumar, Pramod; Jayasree, R.; Jeevanantham, S.

doi:10.1016/b978-0-12-817951-2.00021-3

Cited by 2 publications

(3 citation statements)

References 21 publications

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“…The concentration of dyes in the liquid phases was assessed with an ultraviolet-visible spectrophotometer (UV-Vis) (Shimadzu UV-1800, Japan) at 668 nm. The quantity of dye adsorbed at equilibrium was determined according to equations Saravanan et al, 2020).…”

Section: The Batch Experimentsmentioning

confidence: 99%

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Date Palm Fibre Waste Exploitation for the Adsorption of Congo Redis Dye via Batch and Continuous Modes

Ali,

Shaban,

Mohammed

et al. 2023

J. Ecol. Eng.

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The present study utilised date palm fibre (DPF) waste residues to adsorb Congo red (CR) dye from aqueous solutions. The features of the adsorbent, such as its surface shape, pore size, and chemical properties, were assessed with X-ray diffraction (XRD), BET, Fourier-transform infrared (FTIR), X-ray fluorescence (XRF), and field emission scanning electron microscope (FESEM). The current study employed the batch system to investigate the ideal pH to adsorb the CR dye and found that acidic pH decolourised the dye best. Extending the dye-DPF waste mixing period at 25 °C reportedly removed more dye. Consequently, the influence of the starting dye and DPF waste quantity on dye removal was explored in this study. At 5 g/L dye concentration, 48% dye removal was achieved, whereas at low dye concentrations, only 40% of the dye was removed. The current study also evaluated the DPF particle size created for dye adsorption, yielding a 66% optimal powder size removal. The heat impact assessment performed in this study indicated that increased temperature affected the amount of dye eliminated from aqueous solutions, where a 72% removal was recorded at 45 °C. The pseudo-first-and pseudo-second-order models were utilised to predict the maximum CR dye adsorption with DPF waste. Resultantly, the Langmuir-Freundlich experimental DPF waste CR adsorption documented pseudo-second-order kinetics. In a fixed bed reactor, the DPF waste has been reported to remove CR dye constantly. Consequently, several factors affecting the removal process, including the effects of primary dye, the flow rate of the liquid inside the column, the depth of the filling inside the column, and flow rate were assessed. The results were simulated in the COMSOL ® program and compared to practical experiments, which yielded a 99% match. Conclusively, DPF waste could remove several colours from wastewater via active removal.

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Section: The Batch Experimentsmentioning

confidence: 99%

“…Consequently, the technique eschewed the utilisation of activated carbon in favour of safer and cheaper methods. Adsorption is also advantageous when employed to purify raw wastewater, as it reportedly reduces operating cost, eliminates complicated organic compounds, and produces low residue levels (Saravanan et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Date Palm Fibre Waste Exploitation for the Adsorption of Congo Redis Dye via Batch and Continuous Modes

Ali,

Shaban,

Mohammed

et al. 2023

J. Ecol. Eng.

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“…In addition, it has low maintenance costs, as it does not have moving parts and complex controls. These properties make this method attractive for remote, unmanned, and footprint conscious sites ( Liang et al, 2019 ; Saravanan et al, 2020 ). However, it suffers from issues including low purification efficiency.…”

Section: Hydrogen Purificationmentioning

confidence: 99%

The potential of hydrogen hydrate as a future hydrogen storage medium

2021

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Summary Hydrogen is recognized as the “future fuel” and the most promising alternative of fossil fuels due to its remarkable properties including exceptionally high energy content per unit mass (142 ), low mass density, and massive environmental and economical upsides. A wide spectrum of methods in production, especially carbon-free approaches, purification, and storage have been investigated to bring this energy source closer to the technological deployment. Hydrogen hydrates are among the most intriguing material paradigms for storage due to their appealing properties such as low energy consumption for charge and discharge, safety, cost-effectiveness, and favorable environmental features. Here, we comprehensively discuss the progress in understanding of hydrogen clathrate hydrates with an emphasis on charging/discharging rate of (i.e. hydrate formation and dissociation rates) and the storage capacity. A thorough understanding on phase equilibrium of the hydrates and its variation through different materials is provided. The path toward ambient temperature and pressure hydrogen batteries with high storage capacity is elucidated. We suggest that the charging rate of in this storage medium and long cyclic performance are more immediate challenges than storage capacity for technological translation of this storage medium. This review and provided outlook establish a groundwork for further innovation on hydrogen hydrate systems for promising future of hydrogen fuel.

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Membrane separation technologies for downstream processing

Cited by 2 publications

References 21 publications

Date Palm Fibre Waste Exploitation for the Adsorption of Congo Redis Dye via Batch and Continuous Modes

Date Palm Fibre Waste Exploitation for the Adsorption of Congo Redis Dye via Batch and Continuous Modes

The potential of hydrogen hydrate as a future hydrogen storage medium

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