Biosorption of zinc from aqueous solution using Azadirachta indica bark: Equilibrium and kinetic studies

King, P.; Anuradha, K.; Lahari, S. Beena; Kumar, Y. Prasanna; Prasad, Vandana

doi:10.1016/j.jhazmat.2007.06.101

Cited by 77 publications

(38 citation statements)

References 23 publications

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“…Masud and Anantharaman (2005) found biosorption activity of copper (II) on negative bacteria Thiobacillus ferooxidans while Nuhoglu et al (2002) used Ulothrix zonata for removal of Cu (II) from aquous system. King et al (2007) used Azadirachta indica bark while Mamoona et al (2008) used Neem biomass for the removal of zinc from aquous solution. Pb (II) removal by citrus pectin and Pseudomonas aeruginosa were studied by Ankit and Silke (2005) Vijayaraghavan et al (2006) and Mogollon et al (1998) onto Sargussum wightii and filamentous fungi strains Rhizopus sp.…”

Section: Introductionmentioning

confidence: 99%

Study of mango biomass (Mangifera indica L) as a cationic biosorbent

Ashraf

Maah

Yusoff

2010

Int. J. Environ. Sci. Technol.

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Unfertilizable fruiting buds of mango plant Mangifera Indica L, an agrowaste, is used as a biomass in this study. The efficacy of the biosorbent was tested for the removal of lead, copper, zinc and nickel metal ions using batch experiments in single and binary metal solution under controlled experimental conditions. It is found that metal sorption increases when the equilibrium metal concentration rises. At highest experimental solution concentration used (150 mg/L), the removal of metal ions were 82.76 % for lead, 76.60 % for copper, 63.35 % for zinc and 59.35 % for nickel while at lowest experimental solution concentration (25 mg/L), the removal of metal ions were 92.00% for lead, 86.84 % for copper, 83.96 % for zinc and 82.29 % for nickel. Biosorption equilibrium isotherms were plotted for metal uptake capacity (q) against residual metal concentrations (C f ) in solution. The q versus C f sorption isotherm relationship was mathematically expressed by Langmuir and Freundlich models. The values of separation factor were between zero and one indicating favourable sorption for four tested metals on the biosorbent. The surface coverage values were approaching unity with increasing solution concentration indicating effectiveness of biosorbent under investigation. The non-living biomass of Mangifera indica L present comparable biosorption capacity for lead, copper, zinc and nickel metal ions with other types of biosorbent materials found in literature and is effective to remove metal ions from single metal solutions as well as in the presence of other co-ions with the main metal of solution. Keyword s: Biomass; Efficacy; Isotherm; Multi metal; Single metal; Sorption INTRODUCTIONWater is essential for life on earth. Ninety-seven percent of the water on the earth is salt water. Two percent of the water on earth is glacier ice at the north and south poles and only less then one percent of all the water on earth is fresh water that actually available for drinking, agriculture, domestic and industrial consumption. Moreover, the rest is locked up in oceans as salt water, polar ice caps, glaciers and underground reservoirs. Rapid industrialization and population growth have increased water demands but the supply is limited. This available limited quantity of water is also polluted by variety of pollutants. The major sources of water contamination are domestic, industrial and agricultural, as well as solid waste pollution, thermal pollution, shipping water pollution and radioactive wastes (Tyagi and Mehra, 1994). Heavy metals such as zinc, lead and chromium have a number of applications in basic engineering works, paper and pulp industries, leather tanning, organochemicals, petrochemicals,

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Section: Introductionmentioning

confidence: 99%

Study of mango biomass (Mangifera indica L) as a cationic biosorbent

Ashraf

Maah

Yusoff

2010

Int. J. Environ. Sci. Technol.

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“…Various literatures on biosorption of different metals utilizing H. verticillata as biosorbent suggest that these aquatic plants possess hydroxyl groups in their cellulosic matrix (Huang et al 2010;Li et al 2013;Naveen et al 2011). Modification or pre-treatment of biosorbent using Fenton's reagent technique can be used to oxidize these hydroxyl groups of cellulose into carboxyl groups by creating a weak cationic ion exchanger (Shukla and Pai 2005), which ultimately could enhance the metal removal efficiency up to many folds as compared to the other previous research studies (Nasernejad et al 2005;Kumar et al 2007;Li et al 2007;Singh et al 2007;King et al 2008;Mohammadi et al 2010;Liang et al 2011;Momcilovic et al 2011;Tay et al 2011;Zhang 2011;Verma et al 2013;Kumar 2014;Tasar et al 2014) without imposing much burden on the economy. Furthermore, the use of Fenton modified dried biomass of H. verticillata (FMDBH) for the removal of metal ions from aqueous solution and their application for treating wastewater does not exist.…”

Section: Introductionmentioning

confidence: 92%

Enhanced biosorption of metal ions from wastewater by Fenton modified Hydrilla verticillata dried biomass

Mishra

Tripathi

Kumar

2014

Int. J. Environ. Sci. Technol.

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Present study deals with the biosorption of metal ions (Cu 2? , Zn 2? , Pb 2? , and Cd 2? ) from aqueous solutions as well as from wastewater using Fenton modified Hydrilla verticillata dried biomass. Fenton modification process was optimized by varying different parameters such as pH, temperature, contact time, and Fe 2? /H 2 O 2 ratio. The modified biosorbent was characterized by using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and Malvern particle size analyzer. Energy-dispersive X-ray spectroscopy analysis revealed the enhancement in weight percent of Cu 2? (47.53 %), Zn 2? (41.82 %), Pb 2?(43.76 %), and Cd 2? (43.15 %) ions on the surface of modified biosorbent after the biosorption process. The experimental data obtained from the batch study were modeled using Langmuir and Freundlich isotherm models. Experimental data showed best fitting to Freundlich isotherm model. The increase in biosorption capacity after the Fenton modification was observed, which follows the sequence:[ Zn 2? . The biosorption process followed the pseudo-second-order kinetics, suggesting that the chemisorption may be the rate-limiting step in this study. The thermodynamic study revealed that the biosorption process was spontaneous and exothermic in nature. The biosorption capacity for multi-metal solution was found to be relatively lower than the single-metal solution. Performance of batch reactor in treating wastewater showed significant increase in removal efficiency of Cu (from 71 to 89 %) ions after the modification of biosorbent as compared to raw biomass.

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“…The adsorption mixtures in conical fl asks were placed in an incubation shaker and the agitation speed was set at 180 rpm. The sampling was carried out at specifi ed times (5,10,15,20,25,30,40, 50 and 60 min) and the adsorption mixtures were collected and centrifuged. The supernatant was analyzed by using AAS.…”

Section: Adsorption Studies On Kinetics and Mechanismmentioning

confidence: 99%

Adsorption kinetic, equilibrium and thermodynamic investigations of Zn(II) and Ni(II) ions removal by poly(azomethinethioamide) resin with pendent chlorobenzylidine ring

Kumar¹,

Ethiraj²,

Venkat³

et al. 2015

Polish Journal of Chemical Technology

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This paper reports the application of poly(azomethinethioamide) (PATA) resin having the pendent chlorobenzylidine ring for the removal of heavy metal ions such as Zn(II) and Ni(II) ions from the aqueous solutions by adsorption technology. Kinetic, equilibrium and thermodynamic models for Zn(II) and Ni(II) ions adsorption were applied by considering the effect of contact time, initial metal ion concentration and temperature data, respectively. The adsorption infl uencing parameters for the maximum removal of metal ions were optimized. Adsorption kinetic results followed the pseudo-second order kinetic model based on the correlation coeffi cient (R 2 ) values and closed approach of experimental and calculated equilibrium adsorption capacity values. The removal mechanism of metal ions by PATA was explained with the Boyd kinetic model, Weber and Morris intraparticle diffusion model and Shrinking Core Model (SCM). Adsorption equilibrium results followed the Freundlich model based on the R 2 values and error functions. The maximum monolayer adsorption capacity of PATA for Zn(II) and Ni(II) ions removal were found to be 105.4 mg/g and 97.3 mg/g, respectively. Thermodynamic study showed the adsorption process was feasible, spontaneous, and exothermic in nature.

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Biosorption of zinc from aqueous solution using Azadirachta indica bark: Equilibrium and kinetic studies

Cited by 77 publications

References 23 publications

Study of mango biomass (Mangifera indica L) as a cationic biosorbent

Study of mango biomass (Mangifera indica L) as a cationic biosorbent

Enhanced biosorption of metal ions from wastewater by Fenton modified Hydrilla verticillata dried biomass

Adsorption kinetic, equilibrium and thermodynamic investigations of Zn(II) and Ni(II) ions removal by poly(azomethinethioamide) resin with pendent chlorobenzylidine ring

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