Experimental studies on the removal of heavy metal ion concentration using sugarcane bagasse in batch adsorption process

Yogeshwaran, V.; Priya, A.K.

doi:10.5004/dwt.2021.27160

“…When the ion concentration in the solution increased gradually, the metal ion uptake was slowly Because of the of at low metal ion concentrations, the adsorption process was quick. Metal ions absorbed by the adsorbent become saturated in the mesopores (Yogeshwaran et al, 2021). In this batch study, 25 mg L -1 concentrated metal ion solution provides high adsorption efficiency using groundnut shell charcoal powder.…”

Section: Figure 9 Influence Of Metal Ion Concentration In Adsorptionmentioning

confidence: 94%

Biosorption of heavy metal ions from the aqueous solutions using groundnut shell activated carbon: batch adsorption, kinetic and thermodynamic studies

2022

Global NEST: The International Journal

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<p>Batch adsorption studies of heavy metals were carried out using activated charcoal groundnut shell powder as an adsorbent material. The groundnut shell was collected and synthesized by chemical synthesis to convert it into charcoal form. The prepared adsorbent’s pore size & surface area was analyzed by BET surface analysis using N2 – adsorption & desorption process. XRD techniques analyzed the crystalline structure of charcoal adsorbent, and the functional groups & behaviour of the surface were analyzed through FTIR, SEM, and EDX analysis. The optimum adsorption parameters of pH, temperature, time of contact between adsorbent and adsorbate, groundnut shell dose, and metal ion concentrations were obtained from the batch studies, and the mass transfer mechanism and rate-controlling step was identified by isotherm and kinetic studies. Thermodynamic studies confirm the endothermic nature of the adsorption process between adsorbent and adsorbate, and the spent metal ions have been recovered using concentrated sulfuric acid.</p>

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“…The plots of D-R isotherm (ln qe vs € 2 ) for chromium, lead and zinc metal ions are shown in Figure 13, and the constants are presented in Table 5. By fixing a constant temperature of 30°C, the regression coefficient (R 2 ) values were calculated and the values were observed to be in agreement (R 2 > 0.95) with the adsorption process (Yogeshwaran et al, 2021). Then, the R 2 values calculated by Temkin and D -R isotherm plots were compared to each other to find out the best fit of isotherm study.…”

Section: D-r Adsorption Isothermmentioning

confidence: 99%

Biosorption of heavy metal ions from the aqueous solutions using porous Sargassum Wightii (SW) brown algae: batch adsorption, kinetic and thermodynamic studies

Yogeshwaran¹,

Priya

²

2022

Preprint

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The removal of heavy metal ions (Cr, Pb and Zn) present in aqueous solutions has been examined utilizing Sargassum Wightii (SW) - brown algae – as an organic adsorbent. The functional groups of SW were determined by FTIR analysis before and after heavy metal ion adsorption. Because of the strong Van der Walls forces, the SEM/EDX picture reveals the presence of heavy metal ions on the surface of the SW. The influence of adsorption was studied in different settings by adjusting the parameters of pH, SW dosage, metal ion concentration, time of contact and temperature. In addition, the thermodynamic and isotherm investigations were carried out in order to determine the adsorption process and its connection. It was found that by adding 0.3 N H2SO4, the maximal desorption rate was achieved.

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“…14, and the constants are presented in Table 4. By xing a constant temperature of 30°C, the regression coe cient (R 2 ) values were calculated, and the values were observed to agree (R 2 > 0.95) with the adsorption process (Yogeshwaran et al, 2021). Then, the R 2 values calculated by Temkin, D -R and Sips isotherm plots were compared to each other to nd the best t for the isotherm study.…”

Section: Ftir -Studiesmentioning

confidence: 99%

Equilibrium, Kinetics and Thermodynamic studies of Cr (VI), Pb (II) & Zn (II) biosorption using Sargassum Wightii

Yogeshwaran¹,

Priya

²

2022

Preprint

0

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The removal of heavy metal ions (Cr, Pb and Zn) present in aqueous solutions has been examined utilizing Sargassum Wightii (SW) - brown algae – as an organic adsorbent. The functional groups of SW were determined by FTIR analysis before and after heavy metal ion adsorption. Because of the strong Van der Walls forces, the SEM/EDX picture reveals the presence of heavy metal ions on the surface of the SW. The influence of adsorption was studied in different settings by adjusting the parameters of pH, SW dosage, metal ion concentration, time of contact and temperature. In addition, the thermodynamic and isotherm investigations were carried out in order to determine the adsorption process and its connection. It was found that by adding 0.3 N H2SO4, the maximal desorption rate was achieved. Around 99.6% of chromium ions, 89.27% of lead ions and 82.39% of zinc ions were removed from the synthetic solutions through batch mode of adsorption studies.

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Experimental studies on the removal of heavy metal ion concentration using sugarcane bagasse in batch adsorption process

Cited by 23 publications

References 32 publications

Biosorption of heavy metal ions from the aqueous solutions using groundnut shell activated carbon: batch adsorption, kinetic and thermodynamic studies

Biosorption of heavy metal ions from the aqueous solutions using groundnut shell activated carbon: batch adsorption, kinetic and thermodynamic studies

Biosorption of heavy metal ions from the aqueous solutions using porous Sargassum Wightii (SW) brown algae: batch adsorption, kinetic and thermodynamic studies

Equilibrium, Kinetics and Thermodynamic studies of Cr (VI), Pb (II) & Zn (II) biosorption using Sargassum Wightii

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Experimental studies on the removal of heavy metal ion concentration using sugarcane bagasse in batch adsorption process

Cited by 23 publications

References 32 publications

Biosorption of heavy metal ions from the aqueous solutions using groundnut shell activated carbon: batch adsorption, kinetic and thermodynamic studies

Biosorption of heavy metal ions from the aqueous solutions using groundnut shell activated carbon: batch adsorption, kinetic and thermodynamic studies

Biosorption of heavy metal ions from the aqueous solutions using porous Sargassum Wightii (SW) brown algae: batch adsorption, kinetic and thermodynamic studies

Equilibrium, Kinetics and Thermodynamic studies of Cr (VI), Pb (II) &amp; Zn (II) biosorption using Sargassum Wightii

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Product

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Equilibrium, Kinetics and Thermodynamic studies of Cr (VI), Pb (II) & Zn (II) biosorption using Sargassum Wightii