Sorption Kinetics, Isotherm Studies and Mechanism of Removal of Organic and Inorganic by Adsorption onto Renewable Biomineral

Detho, Amir; Abbasi, Sikandar Ali; Memon, Aftab Hameed; Almohana, Abdulaziz Ibrahim; Daud, Zawawi; Rosli, Mohd Arif

doi:10.1007/s11270-022-06040-7

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…For optimal removal percentage of NH 3 –N, the obtained adsorbent ratio considers as best ratio of PWS. Figure 4 indicates that the removal percentage of COD increases with varying ratio of PWS, because PWS is most efficient adsorbent for removing organic compounds 36 . The finding results revealed that optimal adsorbent mixing ratio at 2.0 g which results in best removal percentage for COD and NH 3 –N.…”

Section: Resultsmentioning

confidence: 96%

Isotherm-kinetic equilibrium investigations on absorption remediation potential for COD and ammoniacal nitrogen from leachate by the utilization of paper waste sludge as an eco-friendly composite filler

Detho,

Kadir,

Rassem

2024

Sci Rep

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The paper industry is a major environmental polluter due to paper waste sludge (PWS), often disposed of in hazardous ways. The techniques are employed to disposing of PWS are posing significant environmental hazards and risks to well-being. This study aims to evaluate PWS as a potential replacement for commercial adsorbents like AC and ZEO in treating stabilized leachate. Contact angle analysis of PWS was 92.60°, reveals that PWS to be hydrophobic. Batch adsorption experiments were conducted with parameters set at 200 rpm stirring speed, 120 min contact time, and pH 7. Optimal conditions for COD and NH3–N removal were identified at 120 min contact time, 200 rpm stirring speed, pH 7, and 2.0 g PWS ratio. Removal percentages for COD and NH3–N were 62% and 52%, respectively. Based on the results of the isotherm and kinetic studies, it was observed that the Langmuir and Pseudo second order (PSO) model exhibited greater suitability compared to the Freundlich and Pseudo first order (PFO) model, as indicated by higher values of R-squared (R2). The R-squared of Langmuir for COD and NH3–N were 0.9949 and 0.9919 and for Freundlich model were 0.9855 and 0.9828 respectively. Whereas the R-squared of PFO for COD and NH3–N were 0.9875 and 0.8883 and for PSO were 0.9987 and 0.9909 respectively.

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Section: Resultsmentioning

confidence: 96%

Isotherm-kinetic equilibrium investigations on absorption remediation potential for COD and ammoniacal nitrogen from leachate by the utilization of paper waste sludge as an eco-friendly composite filler

Detho,

Kadir,

Rassem

2024

Sci Rep

Self Cite

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“…The pseudo-first-order (PFO) and pseudo-second-order (PSO) kinetics models, described by Equations ( 3) and (4), respectively, were adopted [7,35,61]. Specifically, experiments referred to the change in adsorbent and adsorbate amounts were subjected to this investigation.…”

Section: Adsorption Kineticsmentioning

confidence: 99%

The Adsorption Efficiency of Regenerable Chitosan-TiO2 Composite Films in Removing 2,4-Dinitrophenol from Water

Gubitosa

Rizzi

Fini

et al. 2023

IJMS

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In this work, the great performance of chitosan-based films blended with TiO2 (CH/TiO2) is presented to adsorb the hazardous pollutant 2,4-dinitrophenol (DNP) from water. The DNP was successfully removed, with a high adsorption %: CH/TiO2 exhibited a maximum adsorption capacity of 900 mg/g. For pursuing the proposed aim, UV–Vis spectroscopy was considered a powerful tool for monitoring the presence of DNP in purposely contaminated water. Swelling measurements were employed to infer more information about the interactions between chitosan and DNP, demonstrating the presence of electrostatic forces, deeply investigated by performing adsorption measurements by changing DNP solutions’ ionic strength and pH values. The thermodynamics, adsorption isotherms, and kinetics were also studied, suggesting the DNP adsorption’s heterogeneous character onto chitosan films. The applicability of pseudo-first- and pseudo-second-order kinetic equations confirmed the finding, further detailed by the Weber–Morris model. Finally, the adsorbent regeneration was exploited, and the possibility of inducing DNP desorption was investigated. For this purpose, suitable experiments were conducted using a saline solution that induced the DNP release, favoring the adsorbent reuse. In particular, 10 adsorption/desorption cycles were performed, evidencing the great ability of this material that does not lose its efficiency. As an alternative approach, the pollutant photodegradation by using Advanced Oxidation Processes, allowed by the presence of TiO2, was preliminary investigated, opening a novel horizon in the use of chitosan-based materials for environmental applications.

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Zeolite as an Adsorbent Reduces Ammoniacal Nitrogen and COD in Rubber Processing Industry Effluents

Detho,

Kadir,

Rosli

2023

Water Air Soil Pollut

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Sorption Kinetics, Isotherm Studies and Mechanism of Removal of Organic and Inorganic by Adsorption onto Renewable Biomineral

Cited by 4 publications

References 15 publications

Isotherm-kinetic equilibrium investigations on absorption remediation potential for COD and ammoniacal nitrogen from leachate by the utilization of paper waste sludge as an eco-friendly composite filler

Isotherm-kinetic equilibrium investigations on absorption remediation potential for COD and ammoniacal nitrogen from leachate by the utilization of paper waste sludge as an eco-friendly composite filler

The Adsorption Efficiency of Regenerable Chitosan-TiO2 Composite Films in Removing 2,4-Dinitrophenol from Water

Zeolite as an Adsorbent Reduces Ammoniacal Nitrogen and COD in Rubber Processing Industry Effluents

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