Marine macroalgae Pelvetia canaliculata (Linnaeus) as natural cation exchanger for metal ions separation: A case study on copper and zinc ions removal

2014 ◽  
Vol 247 ◽  
pp. 320-329 ◽  
Author(s):  
Franciélle Girardi ◽  
Fabíola V. Hackbarth ◽  
Selene M.A. Guelli U. de Souza ◽  
Antônio Augusto U. de Souza ◽  
Rui A.R. Boaventura ◽  
...  
Keyword(s):  
Metal Ions ◽  
Cation Exchanger ◽  
Marine Macroalgae ◽  
Zinc Ions ◽  
Copper And Zinc

Gram-scale synthesis of monodisperse sulfonated polystyrene nanospheres for rapid and efficient sequestration of heavy metal ions

2017 ◽  
Vol 53 (95) ◽  
pp. 12766-12769 ◽  
Author(s):  
Bin Gong ◽  
Yaotian Peng ◽  
Ziyan Pan ◽  
Weiming Chen ◽  
Yi Shen ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Large Scale ◽  
Zinc Ions ◽  
Sulfonated Polystyrene ◽  
Copper And Zinc ◽  
Polystyrene Nanospheres

Large-scale monodisperse sulfonated polystyrene nanospheres are synthesized for the removal of lead, copper and zinc ions from aqueous solutions.

Equilibrium and Kinetic Studies on Removal of Binary Metal Ions Using Immobilized Saccharomyces cerevisiae

2014 ◽  
Vol 661 ◽  
pp. 39-44
Author(s):  
Nur Khalida Adibah Md Rodzi ◽  
Senusi Faraziehan ◽  
Alrozi Rasyidah
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Metal Ions ◽  
Copper Ions ◽  
Binding Capacity ◽  
Kinetic Studies ◽  
Suitable Model ◽  
Zinc Ions ◽  
Copper And Zinc ◽  
Maximum Sorption ◽  
Pseudo Second Order

In this study, biosorption of copper and zinc ions on Baker’s yeast, Saccharomyces Cerevisiae was investigated. The data of batch experiments was used to perform equilibrium and kinetic studies. The experimental results were fitted well to the Langmuir and Freundlich model isotherms. According to the parameters of Langmuir isotherm, the maximum biosorption capacities of copper and zinc ions onto immobilized yeast were 5.408mg/g and 1.479mg/g at 293 Kfor the treated beads. Competitive biosorption of two metal ions was investigated in terms of maximum sorption quantity. The binding capacity for copper ions is more than the zinc ions for both untreated and treated immobilized yeast.While, for the kinetic studies, the pseudo second order model was found the most suitable model for the present systems.

scholarly journals Lettuce Leaves as Biosorbent Material to Remove Heavy Metal Ions from Industerial Wastewater

2014 ◽  
Vol 11 (3) ◽  
pp. 1164-1170
Author(s):  
Baghdad Science Journal
Keyword(s):  
Heavy Metal ◽  
Environmental Factors ◽  
Metal Ions ◽  
Contact Time ◽  
Industrial Wastewater ◽  
Heavy Metal Ions ◽  
Current Data ◽  
Zinc Ions ◽  
Biosorption Capacity ◽  
Copper And Zinc

The current study was designed to remove Lead, Copper and Zinc from industrial wastewater using Lettuce leaves (Lactuca sativa) within three forms (fresh, dried and powdered) under some environmental factors such as pH, temperature and contact time. Current data show that Lettuce leaves are capable of removing Lead, Copper and Zinc ions at significant capacity. Furthermore, the powder of Lettuce leaves had highest capability in removing all metal ions. The highest capacity was for Lead then Copper and finally Zinc. However, some examined factors were found to have significant impacts upon bioremoval capacity of studied ions, where best biosorption capacity was found at pH 4, at temperature 50º C and contact time of 1 hour.

Ion-exchange breakthrough curves for single and multi-metal systems using marine macroalgae Pelvetia canaliculata as a natural cation exchanger

2015 ◽  
Vol 269 ◽  
pp. 359-370 ◽  
Author(s):  
Fabíola V. Hackbarth ◽  
Franciélle Girardi ◽  
João C. Santos ◽  
Antônio Augusto U. de Souza ◽  
Rui A.R. Boaventura ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Cation Exchanger ◽  
Breakthrough Curves ◽  
Marine Macroalgae

Kinetics of removal of zinc ions from aqueous solutions by a modified acrylnitrile copolymer

1999 ◽  
Vol 39 (8) ◽  
pp. 139-146
Author(s):  
R. Y. Stefanova
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Sorption Process ◽  
Intraparticle Diffusion ◽  
Zinc Ions ◽  
Sorption System ◽  
Modified Polymer ◽  
Rate Limiting Step ◽  
High Sorption ◽  
Kinetics Of

The kinetics of removal of zinc ions from aqueous solutions by a modified acrylnitrile copolymer containing carboxyl and amino groups has been investigated. The dependence of the rate of removal on the intensity of stirring, the size of the sorbent's particles, the initial concentration of metal ions and the temperature of the solution have been established. Attempts have been made to identify the rate limiting step and to determine the batch kinetic parameters. The limiting conditions of the transition from external to intraparticle diffusion step of mass transfer in a sorption system have been determined. The coefficients of intraparticle diffusion and the energy of activation of the sorption process have been established. The data obtained in this work show that the modified polymer with a high sorption capacity and very good kinetic characteristics can be successfully used for removal of heavy metal ions from water solutions and industrial wastewaters.

scholarly journals Efficient Removal of Metals from Synthetic and Real Galvanic Zinc–Containing Effluents by Brewer’s Yeast Saccharomyces cerevisiae

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3624 ◽  
Author(s):  
Inga Zinicovscaia ◽  
Nikita Yushin ◽  
Daler Abdusamadzoda ◽  
Dmitrii Grozdov ◽  
Margarita Shvetsova
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Metal Ions ◽  
High Efficiency ◽  
Zinc Ions ◽  
Brewer’S Yeast ◽  
Yeast Saccharomyces Cerevisiae ◽  
Brewer's Yeast ◽  
Biosorption Process ◽  
Metal Biosorption ◽  
Removal Of Metal Ions

The performance of the brewer’s yeast Saccharomyces cerevisiae to remove metal ions from four batch systems, namely Zn(II), Zn(II)-Sr(II)-Cu(II), Zn(II)-Ni(II)-Cu(II), and Zn(II)-Sr(II)-Cu(II)-Ba(II), and one real effluent was evaluated. Yeast biosorption capacity under different pH, temperature, initial zinc concentration, and contact time was investigated. The optimal pH for removal of metal ions present in the analyzed solution (Zn, Cu, Ni, Sr, and Ba) varied from 3.0 to 6.0. The biosorption process for zinc ions in all systems obeys Langmuir adsorption isotherm, and, in some cases, the Freundlich model was applicable as well. The kinetics of metal ions biosorption was described by pseudo-first-order, pseudo-second-order, and Elovich models. Thermodynamic calculations showed that metal biosorption was a spontaneous process. The two-stage sequential scheme of zinc ions removal from real effluent by the addition of different dosages of new sorbent allowed us to achieve a high efficiency of Zn(II) ions removal from the effluent. FTIR revealed that OH, C=C, C=O, C–H, C–N, and NH groups were the main biosorption sites for metal ions.

A Study on the Coordination of Fully Substituted Cyclopentano Cucurbit[5, 6]uril with Copper and Zinc Ions

2019 ◽  
Vol 4 (40) ◽  
pp. 11674-11677 ◽  
Author(s):  
Wei Wei Zhao ◽  
Lian Tong Wei ◽  
Kai Zhi Zhou ◽  
Ming Hua Chen ◽  
Si Yuan Cheng ◽  
...  
Keyword(s):  
Zinc Ions ◽  
Copper And Zinc
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