Biosorption of Lead (II) Ions From Aqueous Solutions by Biological Activated Dates Stems

Yazid, Hynda; Maachi, Rachida

doi:10.3923/jest.2008.201.213

Cited by 10 publications

(4 citation statements)

References 19 publications

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“…This is an indication of a strong positive relationship for the adsorption data. Araucaria cookii leaves 37.03 - (Deepa and Suresha, 2014) Groundnut hull 31.54 30.21 (Qaiser et al, 2009) Biological activated dates stem 27.03 - (Yazid and Maachi, 2008) Ficus religiosa leaves 37.45 26.25 (Qaiser et al, 2007) Bagasse fly ash 2.5 4.35 (Gupta and Ali, 2004) The maximum monolayer adsorption capacity (Q max ) values of 34.48 mg/g for lead and 16.13 mg/g for chromium observed in this study compared well with some other adsorbents reported from literature as shown in Table 3.…”

Section: The Langmuir Isotherm Modelmentioning

confidence: 99%

Removal of Lead and Chromium from Aqueous Solution onto Flamboyant (<i>Delonix regia) Pod Activated Carbon

Mustapha¹,

Adewoye²,

Aderibigbe³

et al. 2018

Nig. J. Technol. Dev.

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ABSTRACT:The contamination of water by potentially toxic elements is considered a global problem. It calls for a safe, economic and technological approach in order to curb and prevent the devastating effect of the menace on both human and the aquatic life. In the light of this background, the adsorption potential of flamboyant pod activated carbon (FPAC) for the removal of chromium and lead from aqueous solution was studied. The effect of contact time, pH, initial concentration as well as adsorbent dosage on the removal efficiency of both metal ions was investigated via batch adsorption. Characterization of the FPAC adsorbent was done using Brunaur Emmett Teller and Fourier transform infrared spectroscopy. The maximum adsorption capacity Q e was found to be 34.48 and 16.13 mg/g for Pb (II) and Cr (VI), respectively. The Langmuir isotherm model showed a better fit to the equilibrium data than the Freundlich isotherm model. The mechanism of adsorption for both metal ions onto the FPAC agrees well with pseudo second order kinetic model. The results showed that FPAC has excellent adsorption properties and thus can be used as an effective low-cost adsorbent for the removal of lead and chromium ions from aqueous solution.

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Section: The Langmuir Isotherm Modelmentioning

confidence: 99%

Removal of Lead and Chromium from Aqueous Solution onto Flamboyant (<i>Delonix regia) Pod Activated Carbon

Mustapha¹,

Adewoye²,

Aderibigbe³

et al. 2018

Nig. J. Technol. Dev.

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“…The plot should be linear if the intra-particle diffusion is involved in the adsorption process. If the lines pass through the origin then the intra-particle diffusion is the rate-controlling step; if not, it is indicative of some degree of boundary layer control and this further shows that the intra-particle diffusion is not the only rate-limiting step, but that other kinetic models may also control the rate of adsorption, all of which may be operating simultaneously (Yazid and Maachi, 2008).…”

Section: Adsorption Kineticsmentioning

confidence: 98%

A comparative study on Pb2+ removal efficiencies of fired clay soils of different particle size distributions

Tessema¹,

Alemayehu²

2013

Afr. J. Environ. Sci. Technol.

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Batch adsorption studies were carried out to evaluate the Pb 2+ adsorption capacities of three different fired clay soils with different particle size distributions. Adsorption efficiency was observed to increase with an increase in clay content. Adsorption efficiencies of the fired clay soils were also influenced by the firing temperature, the solution's acidity, initial Pb 2+ concentration, shaking time and adsorbent dose. Adsorption of Pb 2+ by the clay soils was observed to increase linearly from pH 1 to 5 and then remained nearly constant at higher pH values. The adsorption of Pb 2+ was observed to increase sharply with Pb 2+ for the lower initial concentrations (5 to 10 mg/L), while a modest increase in Pb 2+ adsorption was found from 10 to about 50 mg/L, a concentration at which maximum removal was attained. The Langmuir and Freundlich adsorption models were applied to the adsorption data and the Langmuir model represented the adsorption process better than the Freundlich model, with correlation coefficients (R 2) ranging from 0.97 to 0.99. The adsorption capacities (qm) calculated from Langmuir for the adsorption of Pb 2+ by S 3F , S 2F and S 1F were found to be 17.3, 15.9, and 11.2 mg/g, respectively.

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“…The date rods waste can be an alternative and favorable adsorbent material for pollutants since it is abundantly available in Algeria and can be considered as cost effective sorbent. To our knowledge, minor works were carried on date rods to remove pollutants from contaminated solutions [5][6][7].The authors indicated that date rods have the average composition of most of lignocellulosic precursors [6]. A proximate analysis of this material has shown the following composition (Ash 5%, Moisture 3%, Volatile matter 67.24% and fixed carbon 24.76%).…”

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confidence: 99%

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confidence: 99%

Treatment of Wastewater by Material Based on Dates Rods

Bouranène¹

2019

Journal of Waste Resources and Recycling

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Many methods are available for the elimination of pollutants from wastewaters including physico chemical and biological treatment techniques (solvent extraction, chemical oxidation by ozone, ion exchange by resins, photocatalytic, electrodialysis filtration and adsorption. However, these methods are not preferable due to their high cost of investing, operating and equipping [1][2][3]. Over the last few years, the use of adsorption to remove pollutants from aqueous solutions is a powerful technology especially using locally available adsorbents [4]. Agricultural waste materials are cost effective and eco-friendly materials due to their unique chemical composition, availability, low cost, being renewable, and other many factors that attract many researchers toward such studies. This work concerns the use of date rods as an agricultural waste material in wastewater treatment. The date rods waste can be an alternative and favorable adsorbent material for pollutants since it is abundantly available in Algeria and can be considered as cost effective sorbent. To our knowledge, minor works were carried on date rods to remove pollutants from contaminated solutions [5][6][7].The authors indicated that date rods have the average composition of most of lignocellulosic precursors [6]. A proximate analysis of this material has shown the following composition (Ash 5%, Moisture 3%, Volatile matter 67.24% and fixed carbon 24.76%). For other characteristics of date rods, the X-Ray diffraction of the raw material sample i.e. the date rods, a broad peak appearing at 2θ = 21.786° is a typical silica characteristic, which can be attributed to the presence of disordered cristobalite [6,8]. On the other hand, analysis of nitrogen adsorption isotherm of the raw date rods results a specific surface area and a pore volume of 5.9 m 2 /g and 0.07 cm 3 /g respectively [9].

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Biosorption of Lead (II) Ions From Aqueous Solutions by Biological Activated Dates Stems

Cited by 10 publications

References 19 publications

Removal of Lead and Chromium from Aqueous Solution onto Flamboyant (<i>Delonix regia) Pod Activated Carbon

Removal of Lead and Chromium from Aqueous Solution onto Flamboyant (<i>Delonix regia) Pod Activated Carbon

A comparative study on Pb2+ removal efficiencies of fired clay soils of different particle size distributions

Treatment of Wastewater by Material Based on Dates Rods

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