Kinetics, thermodynamics and competitive adsorption of lead and zinc ions onto termite mound

Abdus-Salam, N.; Bello, Mojeed Olalekan

doi:10.1007/s13762-015-0769-2

Cited by 15 publications

(7 citation statements)

References 40 publications

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“…where qe = is the amount of Pb (II) ion adsorbed from the solution in (mg/g) at equilibrium, 𝐶𝑖 = the concentration before adsorption (mg/L), 𝐶𝑒 = the concentration after adsorption (mg/L), V = volume of the adsorbate (L), and M = is the weight in a gram of the adsorbent (g) respectively (Abdus-Salam and Bello, 2015). The extent of adsorption was calculated using the eq.…”

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

Adsorption of Pb (II) ion onto Modified Doum Palm (Hyphaene thebaica) Shells: Isotherm, Kinetic and Thermodynamic Studies

Alkali¹,

Abdus-Salam²,

Dikwa³

et al. 2022

AJBAR

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The negative impact of high concentrations of lead in the analytical environment on humans and aquatic plants prompted this research. The adsorption of hazardous lead from an aqueous medium using a Modified Doum Palm (MDP) shell was investigated. The modification of the Doum palm shell was supported via 2 M 1: 2 ZnCl2 as activating agent. The batch equilibrium technique was employed to study the effect of initial concentration (800 mg/L), contact time (90 min) and temperature (313 K) on the adsorption capacity of the prepared adsorbent. Experimental data were analyzed using four kinetic models: pseudo-first-order, pseudo-secondorder, intra-particle diffusion and Elovich models and it was found that the pseudo-second-order model fitted the adsorption data most with the highest correlation (R2 = 0.9875). The studies of thermodynamic behaviour revealed negative values for ∆Go (-26.7036 to -28.1252 kJ/mol), and negative values for ∆Ho (-15.5796 kJ/mol) and ∆So (0.03554 kJ/mol/k) respectively. These indicated the adsorption process was exothermic, feasible and spontaneous in the removal of the Pb (II) ion. The findings demonstrated that the adsorbent could be exploited in the removal of Pb (II) ion from an aqueous solution.

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Section: Batch Adsorption Experimentsmentioning

confidence: 99%

Adsorption of Pb (II) ion onto Modified Doum Palm (Hyphaene thebaica) Shells: Isotherm, Kinetic and Thermodynamic Studies

Alkali¹,

Abdus-Salam²,

Dikwa³

et al. 2022

AJBAR

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“…High Al, Ti, and Fe oxide mineral contents of termite mounds enhace adsorption of contaminants. Termite mounds have been successfully used to remove chromium [46], lead [47], zinc [48], and polycyclic aromatic hydrocarbons (PAH) [49]. Northwestern Ethiopia is characterized by large basaltic dykes as observed by ASTER multispectral imagery [50].…”

Section: Underground Water Treatment and Water Surveymentioning

confidence: 99%

Advances in Nanoscale Study of Organomineral Complexes of Termite Mounds and Associated Soils: A Systematic Review

Eze

Kokwe

Eze

2020

Applied and Environmental Soil Science

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Termite mounds are replete with natural nanoparticles, and they vary in physicochemical, geochemical, mineralogical, and biological properties from the adjoining soils. Although termite mounds have wide ecological and environmental roles including soil formation, faunal and vegetation growth and diversity, organic matter decomposition, geochemical exploration, water survey, treatment of underground contamination, thermoregulation, gas exchange, and global climate change, their nanoscale structures made by the associated organomineral complexes are still poorly understood because of technical limitations. In this review, we highlight the ecological and environmental significance of termite mounds and the documented techniques that have been successfully used to study nanostructure of termite mounds, namely, midinfrared spectroscopy (MIRS), photogrammetry and cross-sectional image analysis, a combination of transmission electron microscopy (TEM) and pyrolysis field ionization mass spectrometry (Py-FIMS), scanning transmission X-ray microscopy (STXM) using synchrotron radiation in conjunction with near-edge X-ray absorption fine structure (NEXAFS) spectroscopy, and high-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) for further appraisals. There is a need to continually develop and integrate nanotechnology with the routine classical soil analysis methods to improve our understanding of the functional mechanisms of nanostructure of termite mounds that are responsible for specific properties. In view of the numerous roles termite mounds play in the environments, agriculture, and engineering, there is no better time to channel much research into understanding how they function at nanoscale.

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“…The results from their experiment revealed that termite mound materials adsorbed Pb(II) up to 15.5 mg/g, and they then concluded that termite mound soil material is an efficient adsorbent of oxides of metals and even manganite silicate. Additionally reported in literature is the use of termite mound materials for defluoridation [74], the removal of arsenate from water [75], Zn(II) removal from aqueous solutions [76], the removal of dyes from wastewater [77], and the removal of chromium from aqueous solutions [78].…”

Section: The Role Of Termite Mound Soil and Its Bacteria In Bioremedimentioning

confidence: 99%

Environmental Sustainability: A Review of Termite Mound Soil Material and Its Bacteria

Enagbonma

Babalola

2019

Sustainability

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The high quantity of nutrients accumulated in termite mound soils have placed termite mound as a 'gold mine' for bacteria concentrations. However, over the years, not much attention has been given to the bacteria present in termite mound soil. This is because many studies have focused on approaches to manage termites which they see as menace to agricultural crops and buildings. Therefore, we aimed to evaluate the potential application of termite mound soil material and its bacteria for biotechnological purposes. This review has been grouped into four key parts: The termite mound as hotspot for bacterial concentration, the degradation of lignocellulose for biofuel production, termite mound soil as a soil amendment, and the role of termite mound soil and its bacteria in bioremediation and bio-filtration. Therefore, the effective usage of the termite mound soil material and its bacteria in an ecofriendly manner could ensure environmental sustainability.

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Kinetics, thermodynamics and competitive adsorption of lead and zinc ions onto termite mound

Cited by 15 publications

References 40 publications

Adsorption of Pb (II) ion onto Modified Doum Palm (Hyphaene thebaica) Shells: Isotherm, Kinetic and Thermodynamic Studies

Adsorption of Pb (II) ion onto Modified Doum Palm (Hyphaene thebaica) Shells: Isotherm, Kinetic and Thermodynamic Studies

Advances in Nanoscale Study of Organomineral Complexes of Termite Mounds and Associated Soils: A Systematic Review

Environmental Sustainability: A Review of Termite Mound Soil Material and Its Bacteria

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