Charred waste of oxalic acid plant as an adsorbent of toxic ions and dyes

Shukla, Nandita; Pandey, Govind

doi:10.1016/0269-7483(90)90078-7

Cited by 12 publications

(2 citation statements)

References 1 publication

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“…Methods applied for the removal of heavy metals from wastewater include chemical precipitation (Akria et al 1989), solvent extraction (Moore 1979), ultrafiltration (Dean et al 1972, biochemical treatment (Brinckman and Olson 1986), ion exchange (Stefonanovic and Macan 1990) and adsorption (Tiwari et al 1989;Shukla and Pandey 1990;Nassar, 1997Nassar, , 1998Nassar, , 1999. Of these, adsorption, which is considered as a third stage of wastewater treatment, has been preferred over other processes because of its cheapness and the high-quality treated effluents it produces.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Iron and Manganese Ions Using Low-Cost Materials as Adsorbents

Nassar

Ewida

Ebrahiem

et al. 2004

Adsorption Science & Technology

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ABSTRACT:The removal of toxic metal ions (iron and manganese) from aqueous solution by adsorption was studied. The batch process was used either to remove each metal ion singly or both metals as a multi-component system. The adsorbents used were low-cost materials, viz. palm fruit bunch and maize cob. The adsorption isotherms demonstrated that the adsorbents behaved in a favourable manner towards metal ion adsorption. The adsorption capacities for iron ions on palm fruit bunch and maize cob were in the 57-80% range and for the manganese ion in the 50-79% range for initial concentrations between 1 ppm and 10 ppm. With mixtures of both metal ions, removal of iron ions from the mixture was in the 54-79% range and for the manganese ion in the 54-76% range. The extended Langmuir model gave poor agreement with the data for the adsorption of mixtures of the two metal ions while the P-factor model yielded good agreement.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Iron and Manganese Ions Using Low-Cost Materials as Adsorbents

Nassar

Ewida

Ebrahiem

et al. 2004

Adsorption Science & Technology

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“…Methods applied for removal of heavy metals from wastewater includes chemical precipitation, [1] solvent extraction, [2] ultra-filtration, [2] biochemical treatments, [3] ion exchange [4] and adsorption, [5][6][7][8] Of these adsorption, which is considered as a third stage of waste treatment, proved its advantage over the other processes because of its cost effectiveness and the high-quality of treated effluent it produces. Adsorption is the process by which a solid adsorbent can attract a component in water to its surface and form an attachment via a physical or chemical bond, thus removing the component from the fluid phase.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Iron and Manganese Using Low Cost Materials as Adsorbents

Nassar

Ewida

Ebrahiem

et al. 2004

Journal of Environmental Science and Health, Part A

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Removal of toxic metals (iron and manganese) ions from aqueous solution by adsorption was studied. Batch tests were used to study the removal of each metal either as a single component or both metals as multicomponent. The adsorbents used are low cost materials namely; palm fruit bunch and maize cobs. The adsorption isotherms proved the favor ability of the adsorbent used. Removal of iron ion by adsorption on palm fruit bunch and maize cobs was in the range of 80-57%, and for magnesium ion in the range of 79-50% for initial concentration ranged between 1 and 10 ppm. In case of mixture of both metals, removal of iron from the mixture was in the range 79-54% and for magnesium was in range of 76-54%.

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Removal of Cr(VI) from aqueous solution by London plane leaves

Aoyama

2003

J of Chemical Tech & Biotech

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The effect of initial metal concentration, contact time and solution temperature on the removal of Cr(VI) from solution by waste London plane leaves, generated by the pruning of street trees, was investigated in batch mode conditions. The removal of Cr(VI) was highly concentration-dependent and mainly governed by physico-chemical adsorption under the weak acidic conditions studied. The equilibrium data fit well in the Langmuir isotherm model. The Langmuir constants were calculated at different temperatures and both the adsorption capacity and adsorption intensity increased with rising temperature. The endothermic nature of the Cr(VI) adsorption was confirmed by the thermodynamic parameters. The study has shown that the waste leaves can be used as an effective adsorbent for removal of Cr(VI) from wastewater.

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Charred waste of oxalic acid plant as an adsorbent of toxic ions and dyes

Cited by 12 publications

References 1 publication

Adsorption of Iron and Manganese Ions Using Low-Cost Materials as Adsorbents

Adsorption of Iron and Manganese Ions Using Low-Cost Materials as Adsorbents

Adsorption of Iron and Manganese Using Low Cost Materials as Adsorbents

Removal of Cr(VI) from aqueous solution by London plane leaves

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