Removal of Lead (II) Ion from Aqueous Solutions Using Black Walnut (Juglan Nigra) Seed Husk

Lawal, O. J.

doi:10.19080/ctbeb.2017.09.555755

Cited by 3 publications

(1 citation statement)

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“…1). At lower pH due to higher concentration of H + ions there is a competition with positively charged Pb(II) ions ( Lawal et al, 2017;Cruz-Lopes,2021). With increase in pH the competitive effect of H + ions decreases and adsorption increases.…”

Section: Effect Of Phmentioning

confidence: 99%

Single and Competitive Removal of Pb(II) in the Presence of Ni(II) using Polyacrylamide Grafted Rice Husk

Sumanjeet¹,

Neeta²,

Kaur³

2023

jasem

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In a quest to find efficient adsorbents for metal ions, studies on various adsorbents for metals have been of interest since the past several decades. The present study is focused on the removal of Pb (II) ions from aqueous solution using poly acrylamide grafted rice husk by batch studies. Industrial waste waters generally contain metals present as mixtures, therefore the effect of Ni (II) on the removal of Pb(II) from mixtures of Pb(II)+Ni(II) ions has also been investigated. The adsorbent has been prepared by the treatment of rice husk with acrylamide in the presence of N,N-methylene bis acrylamide and potassium persulphate. The adsorbent has been characterised by infrared spectral studies. Maximum adsorption obtained is 93% at pH 5, metal ion concentration 300mg/L in 180mins at 298K. Isotherm analyses show that both Langmuir and Freundlich isotherm models are best obeyed. The process is endothermic and spontaneous in nature and follows pseudo first order kinetics. Intraparticle diffusion also occurs but is not the rate determining step. Application of Langmuir competitive model for the binary system shows that adsorption of Pb(II) has been supressed by presence of Ni(II) ions. Studies suggest that the adsorbent is effective and can find industrial applicability.

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Section: Effect Of Phmentioning

confidence: 99%

Single and Competitive Removal of Pb(II) in the Presence of Ni(II) using Polyacrylamide Grafted Rice Husk

Sumanjeet¹,

Neeta²,

Kaur³

2023

jasem

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Progress and challenges in batch and optimization studies on the adsorptive removal of heavy metals using modified biomass-based adsorbents

Adegoke

Akinnawo

Ajala

et al. 2022

Bioresource Technology Reports

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Achievements and Difficulties with Batch and Optimization Investigations of Heavy Metal Adsorptive Removal Utilizing Enhanced Biomass-based Adsorption Materials

El-Fahaam,

Sanad,

Farouz

2025

CNANO

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Surface enhancement improves the porousness and surface area (SSA) of biomass materials, which boosts their adsorption capability. This work investigates recent advances in surface modification technologies of biomass-based materials for heavy metal adsorption, including Pb, As, Cr, Fe, Cd, Mn, Cu, Co, Hg, Ni, Zn, and their ions in waters/wastewaters. The chemical structure and surface properties of biomass were examined in connection with various surface modification approaches and their effects on the adsorption process. In addition, adsorption performance we assessed using various operating conditions, isotherms, kinetics, and computational and artificial intelligence methodologies. This study found that acid-activated Posidonia oceanica had the highest adsorption effectiveness of 631.13 mg/g to eliminate Pb2+, whereas H3PO4/furnace-modified oil palm biomass had the lowest (0.1576 mg/g) for removing Cd2+. Important insights into knowledge gaps for changing these materials for extremely effective adsorption performance were emphasized to improve the area.

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Removal of Lead (II) Ion from Aqueous Solutions Using Black Walnut (Juglan Nigra) Seed Husk

Cited by 3 publications

References 0 publications

Single and Competitive Removal of Pb(II) in the Presence of Ni(II) using Polyacrylamide Grafted Rice Husk

Single and Competitive Removal of Pb(II) in the Presence of Ni(II) using Polyacrylamide Grafted Rice Husk

Progress and challenges in batch and optimization studies on the adsorptive removal of heavy metals using modified biomass-based adsorbents

Achievements and Difficulties with Batch and Optimization Investigations of Heavy Metal Adsorptive Removal Utilizing Enhanced Biomass-based Adsorption Materials

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