Biosorption of Pb(II) from aqueous solutions using chemically modified Moringa oleifera tree leaves

Reddy, D. Harikishore Kumar; Harinath, Y.; Seshaiah, K.; Reddy, Α. V. R.

doi:10.1016/j.cej.2010.06.010

Cited by 187 publications

(96 citation statements)

References 54 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Also, the partial aggregation that occurs at higher dosages decreases the active sites on the biomass. Experimental results of Sarı et al [8], Reddy et al [40], and Fawzy et al [41] are compatible with the literature. In these studies biosorption capacity increases to an equilibrium dosage and then tends to be almost the same.…”

Section: Effect Of Biomass Dosagesupporting

confidence: 81%

Phytoremediation and Biosorption Potential of Lythrum salicaria L. for Nickel Removal from Aqueous Solutions

Bingöl¹,

Özmal²,

Akın³

2017

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Section: Effect Of Biomass Dosagesupporting

confidence: 81%

Phytoremediation and Biosorption Potential of Lythrum salicaria L. for Nickel Removal from Aqueous Solutions

Bingöl¹,

Özmal²,

Akın³

2017

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

“…4, the kinetics presented a multi-linear profile, and the model's R 2 value of 0.9358 was not good. This indicated that intra-particle diffusion was not the only rate-controlling step (Reddy et al 2010). a b Isotherm Figure 5 shows the sorption isotherm for manganese ion adsorption onto Moringa oleifera seeds.…”

Section: Determination Of Optimum Parameters and Adsorption Studiesmentioning

confidence: 99%

“…Considering that the application of neither the pseudo-first-order model nor the pseudo-second-order model led to a diffusion-limited mechanism being identified, another kinetic model was needed in order to study this process. For this end, the Weber and Morris sorption kinetic model (Reddy et al 2010) was applied. This model also is known as the intra-particle diffusion model since this is a process that in many cases is the rate-limiting step.…”

Section: Determination Of Optimum Parameters and Adsorption Studiesmentioning

confidence: 99%

Assessment of the Use of Moringa oleifera Seeds for Removal of Manganese Ions from Aqueous Systems

Marques¹,

Alves²,

Coelho³

et al. 2013

BioResources

View full text Add to dashboard Cite

Moringa oleifera seeds were investigated for the removal of manganese ions from aqueous solutions. The seeds utilized were obtained from plants grown in Uberlândia, Brazil. After being dried and pulverized, the seeds were treated with 0.1 mol L -1 NaOH. Using the optimized methodology (50 mL of 4.0 mg L -1 Mn(II), pH range of 4.0-6.0, contact time of 5 min, and biosorbent mass of 0.5 g) it was found that 100% of Mn(II) could be removed from water samples. In order to remove up to 95% of Mn ions in 50 mL of a laboratory residue produced during biochemical oxygen demand determinations with 112.0 mg L -1 of manganese, the contact time and pH were maintained, but a mass of 3.0 g was used. The kinetic data were fitted to a pseudo-second-order kinetic model. The sorption data were fitted satisfactorily to the Langmuir and Freundlich isotherm models. Evaluation applying the Langmuir equation gave the monolayer sorption capacity as 5.61 mg/g. In this application the method was found to be efficient, fast, simple, and economical.

show abstract

“…The biosorption capacity of the Delonix regia for Lead increased as temperature increased, indicating the adsorption process was Table 5 Effect of temperature on Pb 2+ ions removal efficiency and q e at different initial concentrations (10,20,50) mg/L by Delonix regia pod. endothermic.…”

Section: Thermodynamic Studiesmentioning

confidence: 99%

“…From the intercept and slope the Langmuir parameters (b and q m ) are calculated. These values may be used for compared and correlate the biosorptive properties of Delonix regia of the Freundlich has the linear form [2,50].…”

Section: Adsorption Isotherm: Pbmentioning

confidence: 99%

Removal of Toxic Pb(II) Ions from Aqueous Solution by Nano Sized Flamboyant Pod (Delonix regia)

Abdel‐Rahman¹,

Al-Farhan²,

Abu‐Dief³

et al. 2017

Arch Chem Res

View full text Add to dashboard Cite

The removing of toxic heavy metals from aqueous solution by agricultural biosorbents was investigated by studying the effect of nano sized (Delonix regia) and chemically modified biosorbent citric acid Delonix regia (CADR) for removing of Pb 2+ ions. TEM, XRD and EDS, FT-IR, SEM methods were used for characterizing the biosorbent (Delonix regia). The effect of contact time, pH, temperature, dosage of biosorbent, and Pb 2+ ion concentration on adsorption process were studied. The maximum biosorption capacities (q m ) of Pb 2+ by Delonix regia biosorbent was 43.62 mg/g. The highest R. E was (93.5%) at pH 5. FT-IR method showed that the adsorption of metal ions occurs by functional groups on the surface of Delonix regia powder. The biosorption process was endothermic from thermodynamic parameters. The pseudo second-order model more fit (R 2 =0.999) than the pseudo first-order model (R 2 =0.985) from studying the kinetic parameters. The experimental data fit with Freundlich isotherm (R 2 close to 1). This results indicated that Delonix regia is available agricultural, low cost and environment friendly biosorbent for removing the Pb 2+ ions.

show abstract

Biosorption of Pb(II) from aqueous solutions using chemically modified Moringa oleifera tree leaves

Cited by 187 publications

References 54 publications

Phytoremediation and Biosorption Potential of Lythrum salicaria L. for Nickel Removal from Aqueous Solutions

Phytoremediation and Biosorption Potential of Lythrum salicaria L. for Nickel Removal from Aqueous Solutions

Assessment of the Use of Moringa oleifera Seeds for Removal of Manganese Ions from Aqueous Systems

Removal of Toxic Pb(II) Ions from Aqueous Solution by Nano Sized Flamboyant Pod (Delonix regia)

Contact Info

Product

Resources

About