Biosorption of zinc onto Syzygium cumini L.: Equilibrium and kinetic studies

King, P.; Rakesh, N R; Lahari, S. Beena; Kumar, Y. Prasanna; Prasad, Vandana

doi:10.1016/j.cej.2008.01.019

Cited by 59 publications

(22 citation statements)

References 31 publications

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“…The optimum pH was found to be 6 with the removal of about 96.7% Zn 2þ from the aqueous leachate. Similar results were also reported in the literature for different biomass systems [18][19][20][21][22] Fig. 2.…”

Section: Effect Of Ph On Adsorption Of Zn 2þ Onto Pssupporting

confidence: 91%

“…This phenomenon was due to the fact that a large number of vacant surface sites were available for adsorption during the initial stage, and after a lapse of time, the remaining vacant surface sites were difficult to occupy due to repulsive forces between the solute molecules on the solid and bulk phases. A similar trend was observed in the adsorption of Zn 2þ on different biomass systems [22][23][24]. Maximum adsorption was observed after 10 min, beyond which there was almost no further …”

Section: Effect Of Contact Time On Adsorption Of Zn 2þsupporting

confidence: 76%

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Use of Pistachio Shells as an Adsorbent for the Removal of Zinc(II) Ion

Turan

Mesci

2011

CLEAN Soil Air Water

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In this study, the removal of zinc(II) ion from an aqueous solution by pistachio shells (PS) is investigated. The dynamic behavior of the adsorption is examined on the effects of pH, adsorbent dosage, and contact time. The adsorption rates are determined quantitatively and simulated by the Lagergren first order, pseudo-second order, Elovich, and intra-particle diffusion kinetic models. The adsorption kinetic models are also tested for validity. The thermodynamic parameters, which are also deduced from adsorption experiments, are very useful in elucidating the nature of adsorption. The experimental results reveal that the optimum pH value and the contact time for the adsorption of Zn 2þ onto PS are found as 6 and 10 min, respectively. According to these parameters, adsorption process follows the pseudo-second order kinetic model with high correlation coefficients (R 2 ¼ 0.999). The obtained results demonstrate that PS is a reasonably effective adsorbent for the removal of Zn 2þ from aqueous leachate of hazardous waste.

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Section: Effect Of Ph On Adsorption Of Zn 2þ Onto Pssupporting

confidence: 91%

Section: Effect Of Contact Time On Adsorption Of Zn 2þsupporting

confidence: 76%

Use of Pistachio Shells as an Adsorbent for the Removal of Zinc(II) Ion

Turan

Mesci

2011

CLEAN Soil Air Water

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“…The more concentration of the adsorbate in solution, the smaller is the ability of the adsorbent to adsorb. In high concentration range, the fractional adsorption is low [25,26]. For lead, maximum removal (100%) was at concentration (1-5 mg/l) then decreased to minimum removal (91.68%)at concentration (13 mg/l).…”

Section: Effect Of Contact Timementioning

confidence: 96%

Removal of Lead and Copper Ions from Polluted Aqueous Solutions using Nano-Sawdust Particles

A¹,

A²,

H³

2017

Int J Waste Resour

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“…Des r esultats similaires en termes de comportement des mat eriaux adsorbants ont et e observ es pour les feuilles du jamelonier (Syzygium cumini) [10] et la laitue de mer (Ulva fasciata sp). [11] Effet de la temp erature Afin d' etudier l'effet de la temp erature nous avons suivi le protocole ci-dessous.…”

Section: Effet Du Temps De R Eactionunclassified

Elimination du zinc par les cosses de petits pois (Pisum sativum) et les feuilles de lierre (Hedera helix L) Elimination of zinc by peapods (Pisum sativum) and ivy leaves (Hedera helix L)

2015

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La pollution des eaux souterraines et de surface par les m etaux lourds constitue un grand probl eme pour l'environnement ; de ce fait il s'av ere n ecessaire de pouvoir eliminer ces substances toxiques. Il existe de nombreuses m ethodes qui permettent d' eliminer ces derni eres, telles que l'adsorption, la pr ecipitation chimique et la filtration sur membrane.Dans notre etude, le zinc a et e adsorb e sur les cosses de petits pois et les feuilles de lierre. Un temps de r eaction de 30 minutes a et e obtenu pour les deux adsorbants ; ainsi qu'un pH optimal egal a 4 pour les feuilles de lierre et a 5 pour les cosses de petits pois. Les r esultats obtenus montrent egalement que les isothermes d'adsorption sont de type I. Mots clefs : zinc, adsorption, petits pois, lierre, pollutionThe pollution of surface and ground water by heavy metals is a major problem for the environment; therefore, it is necessary to eliminate these toxic substances. There are many methods to remove these pollutants, such as adsorption, chemical precipitation, and membrane filtration.In our study, zinc is adsorbed on peapods and ivy leaves. Contact time is 30 min for the two adsorbents, and optimal pH is 4 for ivy leaves and 5 for peapods. Results indicate that adsorption isotherms were of type I.

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Biosorption of zinc onto Syzygium cumini L.: Equilibrium and kinetic studies

Cited by 59 publications

References 31 publications

Use of Pistachio Shells as an Adsorbent for the Removal of Zinc(II) Ion

Use of Pistachio Shells as an Adsorbent for the Removal of Zinc(II) Ion

Removal of Lead and Copper Ions from Polluted Aqueous Solutions using Nano-Sawdust Particles

Elimination du zinc par les cosses de petits pois (Pisum sativum) et les feuilles de lierre (Hedera helix L) Elimination of zinc by peapods (Pisum sativum) and ivy leaves (Hedera helix L)

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