Removal of Lead(II) by Adsorption onto "Waste" Iron(III)/Chromium(III) Hydroxide from Aqueous Solution and Radiator Manufacturing Industry Wastewater

Namasivayam, C.; Ranganathan, K.

doi:10.1021/ie00042a019

Cited by 42 publications

(15 citation statements)

References 14 publications

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“…There are other equations available for analyzing experimental sorption equilibrium data, including the Toth, the Dubnin-Redushkevich, and the Redlich-Peterson isotherms. [9]. The equilibrium time required for the metal ion is very short.…”

Section: Adsorption Isothermsmentioning

confidence: 99%

“…The use of adsorbents such as modified groundnut husk [5], olive stones [6], lignite material [3], bagasse and fly ash [7], peanut hull carbon [8], Fe(III)/Cr(III) sludge [9], betonite [10], water biogas residual slurry [11], crude coniferous bark [12], modified sawdust [13], and sugar beet pulp [14] for the removal of Pb(II) from aqueous solution has been reported.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetics and equilibrium adsorption study of lead(II) onto activated carbon prepared from coconut shell

Sekar¹,

Sakthi²,

Selvaraj

2004

Journal of Colloid and Interface Science

592

229

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Section: Adsorption Isothermsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Kinetics and equilibrium adsorption study of lead(II) onto activated carbon prepared from coconut shell

Sekar¹,

Sakthi²,

Selvaraj

2004

Journal of Colloid and Interface Science

592

229

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“…Me rem (%). The specific rate constants for the heavy metal adsorption were found from the Lagergren equation [23]:…”

Section: Analysis Of the Heavy Metals Adsorptionmentioning

confidence: 99%

Waste Conversion into Activated Carbon for Heavy Metal Removal from Waste Water

Lyubchik

Khodorkovskij

Makarova

et al. 2008

NATO Science for Peace and Security Series C: Environmental Security

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Abstract. Activated carbons were prepared from co-mingled natural organic waste, comprising 25% sunflower husks, 50% petroleum waste and 25% low-grade bituminous coal. The porous carbon materials were obtained either by direct activation with steam at 1,123 K, or through pre-oxidation stages with binary eutectic Na/K carbonates, followed by carbonization at 623 K in an inert atmosphere, and then steam activation at 1,123 K. The activated carbons prepared from the co-mingled natural organic wastes were used as adsorbents to remove copper (II), cobalt (III), nickel (II), iron (II), and manganese (II) from real multi-component solutions. Batch experiments were carried out to study the kinetics of multi-component, competitive adsorption. The mechanisms of heavy-metal adsorption on activated carbon are discussed.

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“…[4][5][6][7][8][9][10][11][12]. Waste materials from iron and steel industries applied for the removal of lead ions from aqueous solutions [13][14][15] are blast furnace flue dust, Fe(III) sludge, electro furnace slag etc. In the present investigation, iron ore slimes have been utilized for the adsorption of lead ions from aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Studies on removal of lead ions from aqueous solutions using iron ore slimes as adsorbent

Panda

Das

Rao

2011

Korean J. Chem. Eng.

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Iron ore slimes, a waste material generated during iron ore mining have been employed for the removal of lead ions from aqueous solutions by a batch adsorption technique. The slime sample contains 45.8% Fe, 13.6% SiO 2 , and 13.9% Al 2 O 3 . It is characterized by X-ray diffraction (XRD) and optical microscopy to determine the presence of different phases such as hematite, goethite, limonite, quartz and kaolinite. It is assumed that the adsorption of lead ions is mainly due to the presence of pores and cavities in goethite mineral. The FTIR studies showed the presence of Si-OH and Fe-OH sites responsible for adsorption. Furthermore, the point of zero charge (pzc) of iron ore slime is shifted from 6.2 to 5.8 due to the adsorption of lead ions. Batch adsorption experiments have been conducted to study the sorption behavior of lead ions on iron ore slime. The effects of agitation time, concentration of lead ions, adsorbent doses, solution pH, other metal ions and temperature on the amount of lead ions adsorbed have been investigated. Lead ion adsorption is fast, and equilibrium could be achieved within 15 minutes of time. The adsorption increased with increase in temperature suggesting an endothermic adsorption. Under the conditions, it is possible to remove 95% lead from an aqueous solution bearing ~20 mg/l at pH~5.1. The equilibrium adsorption isotherm data fitted very well to both Langmuir and Freundlich adsorption models.

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Removal of Lead(II) by Adsorption onto "Waste" Iron(III)/Chromium(III) Hydroxide from Aqueous Solution and Radiator Manufacturing Industry Wastewater

Cited by 42 publications

References 14 publications

Kinetics and equilibrium adsorption study of lead(II) onto activated carbon prepared from coconut shell

Kinetics and equilibrium adsorption study of lead(II) onto activated carbon prepared from coconut shell

Waste Conversion into Activated Carbon for Heavy Metal Removal from Waste Water

Studies on removal of lead ions from aqueous solutions using iron ore slimes as adsorbent

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