Sorption interactions of organic compounds with soils affected by agricultural olive mill wastewater

Keren, Y.; Borisover, Mikhail; Bukhanovsky, Nadezhda

doi:10.1016/j.chemosphere.2015.06.085

Cited by 46 publications

(17 citation statements)

References 31 publications

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“…Figure 9 f shows the Sips adsorption isotherm, where Q max,S = 1350 mg·g −1 , K S = 204.15 and n S = 1.93 for the Sips isotherm. According to Keren et al [ 72 ], the Sips adsorption isotherm is a flexible isotherm model which corresponds to different isotherm models depending on the value for n S . The Sips isotherm reduces to the Langmuir isotherm for n S = 1, while a value for n S > 1 results in a sorbate–sorption site interaction characterised by a Gaussian distribution (known as the Langmuir–Freundlich model).…”

Section: Resultsmentioning

confidence: 99%

Effective Adsorption of Congo Red from Aqueous Solution Using Fe/Al Di-Metal Nanostructured Composite Synthesised from Fe(III) and Al(III) Recovered from Real Acid Mine Drainage

Muedi

Masindi

Maree³

et al. 2022

Nanomaterials

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This study presents the first known exploration of Congo red dye (CR) adsorption by a polycationic Fe/Al Di-metal nanostructured composite (PDFe/Al) synthesised using Fe(III) and Al(III) recovered from authentic acid mine drainage (AMD). The PDFe/Al successfully removed CR from the aqueous solution. The mineralogical, microstructural, and chemical properties of the synthesised PDFe/Al adsorbent (before and after adsorption) were studied using state-of-the-art analytical instruments. The optimum conditions were observed to be 100 mg·L−1 CR, 1 g of the PDFe/Al in 500 mL adsorbate solution, 20 min of shaking, pH = 3–8, and a temperature of 35 °C. At optimised conditions, the PDFe/Al showed ≥99% removal efficacy for CR dye and an exceptionally high Langmuir adsorption capacity of 411 mg·g−1. Furthermore, a diffusion-limited adsorption mechanism was observed, with two distinct surfaces involved in the adsorption of CR from an aqueous solution. It was determined that the adsorption of CR induced internal strain and deformation within the matrices and interlayers of the PDFe/Al which resulted in a marked increase in the adsorbent pore surface area and pore volume. The remarkably high adsorption capacity could be attributed to the high surface area. A regeneration study showed that the adsorbent could be reused more than four times for the adsorption of CR. The findings from this study demonstrated the feasibility of recovering valuable minerals from toxic and hazardous AMD and demonstrated their potential for the treatment of industrial wastewaters.

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Section: Resultsmentioning

confidence: 99%

Effective Adsorption of Congo Red from Aqueous Solution Using Fe/Al Di-Metal Nanostructured Composite Synthesised from Fe(III) and Al(III) Recovered from Real Acid Mine Drainage

Muedi

Masindi

Maree³

et al. 2022

Nanomaterials

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“…(a-f) The best agreement between theoretical (red line) and experimental (black line) XRD patterns obtained by varying %RH rates under different pH values(3)(4)(5)(6)(7)(8).…”

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confidence: 89%

“…Recent studies investigated the adsorption/desorption of various organic matters on/from soil particles. These include, for example, the adsorption of antibodies, surfactants, fireretarding organics, and herbicides [5][6][7][8]. The use of these techniques is thwarted by the high cost of materials used for these purposes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Soil Solution pH during the Tetracycline Intercalation on the Structural Properties of a Dioctahedral Smectite: Microstructural Analysis

Oueslati

2019

Journal of Nanomaterials

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The aim of this work is to quantitatively characterize the structural response to a chemical disruption of saturated montmorillonite crystallites by organic molecules (tetracycline (TC)), derived from pharmaceutical waste. The chemical disturbance is performed by varying the surrounding soil solution pH. To show the effect of this chemical perturbation on the interlamellar space (IS) configuration and the hydration properties, an "in situ" XRD analysis, based on the modeling of the 00l reflections, is carried out. The "in situ" XRD analysis is performed by varying the relative humidity conditions (%RH). FTIR SEM and BET-(Brunauer-Emmett-Teller-) BJH (Barrett-Joyner-Halenda) analyses are used as complementary techniques to confirm the structural changes accompanying the intercalation process. Results showed a dependence between solution acid character and the TC adsorption mechanism. From pH values close to 7, the deprotonation of the TC molecule within IS is accelerated by an increasing %RH rate. IR spectroscopy shows that the structure is preserved versus pH value and only a shift of the water deformation bands ascribed to interlamellar water molecule abundance and TC conformation is observed. The surface morphology studied by SEM shows the increase in the surface porosity by increasing the pH value. BET-specific surface area and BJH pore size distribution (PSD) analyses confirm the SEM observations.

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“…The higher the value of n, the more heterogenous is the system [62,63]. However, in some cases, when the value of n is greater than 1, this model may be identified as describing a cooperative interaction with adsorbates at one site of the adsorbent influencing different binding sites on the same adsorbent [64]. Evaluation of the experimental fitting yielded an n of 2.04, thus indicating the cooperative manifestations of the adsorptive Ni(II) ions on the heterogeneous surface of Au/MPA/V-CNCs-CTA thin film.…”

Section: Ni(ii) Ionmentioning

confidence: 99%

Cellulose and Vanadium Plasmonic Sensor to Measure Ni2+ Ions

et al. 2021

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A novel vanadium–cellulose composite thin film-based on angular interrogation surface plasmon resonance (SPR) sensor for ppb-level detection of Ni(II) ion was developed. Experimental results show that the sensor has a linear response to the Ni(II) ion concentrations in the range of 2–50 ppb with a determination coefficient (R2) of 0.9910. This SPR sensor can attain a maximum sensitivity (0.068° ppb−1), binding affinity constant (1.819 × 106 M−1), detection accuracy (0.3034 degree−1), and signal-to-noise-ratio (0.0276) for Ni(II) ion detection. The optical properties of thin-film targeting Ni(II) ions in different concentrations were obtained by fitting the SPR reflectance curves using the WinSpall program. All in all, the proposed Au/MPA/V–CNCs–CTA thin-film-based surface plasmon resonance sensor exhibits better sensing performance than the previous film-based sensor and demonstrates a wide and promising technology candidate for environmental monitoring applications in the future.

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Sorption interactions of organic compounds with soils affected by agricultural olive mill wastewater

Cited by 46 publications

References 31 publications

Effective Adsorption of Congo Red from Aqueous Solution Using Fe/Al Di-Metal Nanostructured Composite Synthesised from Fe(III) and Al(III) Recovered from Real Acid Mine Drainage

Effective Adsorption of Congo Red from Aqueous Solution Using Fe/Al Di-Metal Nanostructured Composite Synthesised from Fe(III) and Al(III) Recovered from Real Acid Mine Drainage

Effect of Soil Solution pH during the Tetracycline Intercalation on the Structural Properties of a Dioctahedral Smectite: Microstructural Analysis

Cellulose and Vanadium Plasmonic Sensor to Measure Ni2+ Ions

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