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

Aoyama, Masakazu

doi:10.1002/jctb.838

Cited by 38 publications

(23 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The K F value 2.396(mgg -1 Lg 1/n ) suggesting and conforming that Ni(II) has greater adsorption tendency towards the RC. Similar results are reported 26 .…”

Section: The Freundlich Isothermsupporting

confidence: 91%

Kinetic and Isotherm Studies on Adsorption of Nickel (II) Ions by Brassera Oleracea as a Bioadsorbent

2016

IJSR

View full text Add to dashboard Cite

An increase in population initiating rapid industrialization was found to consequently increase the effluents into the aquatic ecosystem. brassera oleracea -Cabbage, a vegetable wastes were used to produce bioadsorbent through environment friendly process. It were cut, washed, dried, grounded into powder and used for nickel(II) removal. Nickel(II) adsorption onto raw cabbage(RC) was depended upon the controlling parameters such as pH, contact time, initial concentration, adsorbent dosage, particle size and temperature. pH 5 was found to be suitable for nickel(II) removal. Equilibrium, thermodynamic and kinetic data were well fitted (R 2 = 0.991). Various thermodynamic parameters such as ΔGº, ΔHº and ΔSº have also been evaluated and it has been found that the adsorption process was spontaneous, endothermic and randomness in nature. The experimental data were analyzed using the Freundlich, Langmuir and Temkin adsorption isotherm equations. The equilibrium data were found to fit well in the Langmuir isotherm, which confirmed the monolayer coverage of Ni(II) ions onto RC. The monolayer adsorption capacity was 13.63mg/g. The R L and 'n' values has proved the favorability of nickel(II) adsorption onto raw cabbage. The uptake of metal ions normally follows pseudo-first order kinetics and the adsorption capacity increase at elevated temperatures. The results indicate that the RC can be used to effectively adsorb nickel(II) ions from wastewater.

show abstract

“…The K F value 2.396(mgg -1 Lg 1/n ) suggesting and conforming that Ni(II) has greater adsorption tendency towards the RC. Similar results are reported 26 .…”

Section: The Freundlich Isothermsupporting

confidence: 91%

Kinetic and Isotherm Studies on Adsorption of Nickel (II) Ions by Brassera Oleracea as a Bioadsorbent

2016

IJSR

View full text Add to dashboard Cite

show abstract

“…The removal of metal ions increased with the increase in biosorbent concentration and attained equilibrium after 0.25 g of adsorbent dosage for the chromium (VI) ions. This is due to availability of more biosorbent as well as greater availability of surface area (Aoyama, 2003). The removal of Cr(VI) is highly favoured at pH 3 and the same pH is maintained through out the experiments.…”

Section: Effect Of Dosagementioning

confidence: 99%

Biosorption of hexavalent chromium using tamarind (Tamarindus indica) fruit shell-a comparative study

Popuri¹,

Jammala²,

Reddy³

et al. 2007

Electron. J. Biotechnol.

View full text Add to dashboard Cite

The adsorption of chromium (VI) ions from aqueous solutions has been investigated on crude tamarind fruit shell, HCl treated and Oxalic acid treated shells at room temperatures. The biosorbents are characterized by FT-IR, EDXRF and porosimetry. The biosorption experiments are conducted through batch system. The influence of different experimental parameters such as pH, effect of initial metal ion concentration and effect of dosage of adsorbent on biosorption are evaluated. The adsorption followed first order kinetics. The data are fitted well to Langmuir and Freundlich isotherm models. A comparison is drawn on the extent of biosorption between untreated and treated forms of the tamarind shells. Due to their outstanding adsorption capacities, tamarind shells are excellent sorbents for the removal of chromium ions.

show abstract

“…The removal of metal ions increased with the increase in biosorbent concentration and equilibrium was attained after 4 g/L of adsorbent dosage for the chromium (VI) ions. This is due to availability of more biosorbent sites as well as enhanced surface area [41]. The decrease in the rate of Cr (VI) uptake at adsorbent dose greater that 2 mg/L may be due to competition of the Cr (VI) ion for the sites available [42].…”

Section: Effect Of Biosorbent Dosage On Cr (Vi) Uptakementioning

confidence: 99%

Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Mandina¹

2013

IOSR-JAC

View full text Add to dashboard Cite

of Cr (VI) ions increased with increase in contact time and remained constant after an equilibrium time of 180 min. The removal of Cr (VI) ions increased with increase in biosorbent concentration with the optimal adsorbent dosage at 4.0 mg/L. The increase in initial Cr (VI) ion concentration led to an increase in the percentage removal of Cr (VI). The adsorption data fitted well with the Freundlich isotherm model with

show abstract

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

Cited by 38 publications

References 22 publications

Kinetic and Isotherm Studies on Adsorption of Nickel (II) Ions by Brassera Oleracea as a Bioadsorbent

Kinetic and Isotherm Studies on Adsorption of Nickel (II) Ions by Brassera Oleracea as a Bioadsorbent

Biosorption of hexavalent chromium using tamarind (Tamarindus indica) fruit shell-a comparative study

Removal of chromium (VI) from aqueous solution using chemically modified orange (citrus cinensis) peel

Contact Info

Product

Resources

About