Adsorption isotherms, kinetic, and desorption studies on removal of toxic metal ions from aqueous solutions by polymeric adsorbent

2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Naser Samadi ◽  
Reza Hasanzadeh ◽  
Mohamad Rasad
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Adsorption Isotherms ◽  
Toxic Metal ◽  
Polymeric Adsorbent ◽  
Toxic Metal Ions

scholarly journals Adsorption of Toxic Metal Ions from Aqueous Solutions by Modified Cellulosic Waste Material

2013 ◽  
Vol 25 (1) ◽  
pp. 309-312
Author(s):  
Arvind Dixit ◽  
Anuradha Tiwari ◽  
Sunil Kumar Yadav ◽  
Bhakti Vijay Shukla
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Toxic Metal ◽  
Waste Material ◽  
Toxic Metal Ions ◽  
Cellulosic Waste

Non-apatite Ca-Mg phosphate sorbent for removal of toxic metal ions from aqueous solutions

2017 ◽  
Vol 5 (2) ◽  
pp. 2010-2017 ◽  
Author(s):  
A.I. Ivanets ◽  
V. Srivastava ◽  
N.V. Kitikova ◽  
I.L. Shashkova ◽  
M. Sillanpää
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Toxic Metal ◽  
Toxic Metal Ions

scholarly journals Use of Vermicompost for the Removal of Toxic Metal Ions of Synthetic Aqueous Solutions and Real Aqueous Waste

2018 ◽  
Vol 43 (1SI) ◽  
pp. 35 ◽  
Author(s):  
Luane Patricia Guedes Barbosa ◽  
Tácila Oliveira Pinto De Freitas ◽  
Madson De Godoi Pereira
Keyword(s):  
Aqueous Solutions ◽  
Metal Ions ◽  
Aqueous Media ◽  
Toxic Metal ◽  
National Council ◽  
Mechanical Agitation ◽  
Chemical Laboratory ◽  
Toxic Metal Ions ◽  
Legal Limits ◽  
Metallic Cations

Samples of vermicompost were used to decontaminate aqueous media containing Cd2+, Cu2+, Mn2+, Ni2+, Pb2+ and/or Zn2+ at concentration up to 10X higher than the limits of National Council of the Environment (Resolution 430/2011). For this purpose, 50.00 mL of synthetic solutions and wastewater from a chemical laboratory were stirred with dried vermicompost (~10.0000 g), in natura or with diameter ≤ 0.053 mm. Aqueous media were treated with vermicompost, either at rest (24, 48, 72, and/or 96 h) or under mechanical agitation (2, 4, 6, 8, and/or 10 h). All elements were spectrometrically determined in the different supernatants. In the synthetic solutions, except for Mn2+and Zn2+, all cations were undetectable (concentrations lower than the legal limits), when in natura vermicompost was used. After treating synthetic solutions with sieved vermicompost, Cd2+, Cu2+, Ni2+, Pb2+ e Zn2+ concentrations were undetectable, while Mn2+ concentrations were too close to the legal limits. In the wastewater, Cd2+and Pb2+ concentrations, which were 1.5 and 3.8X higher than the legal limits, respectively, were undetectable after treatment with vermicompost in natura. Besides its efficiency of retaining the evaluated metallic cations, vermicompost was able to increase the aqueous media pH from 0.9 to 6.0 ± 0.5.    

scholarly journals Polymeric ion exchanger supported ferric oxide nanoparticles as adsorbents for toxic metal ions from aqueous solutions and acid mine drainage

2019 ◽  
Vol 17 (2) ◽  
pp. 719-730 ◽  
Author(s):  
Caroline Lomalungelo Dlamini ◽  
Lueta-Ann De Kock ◽  
Kebede Keterew Kefeni ◽  
Bhekie Brilliance Mamba ◽  
Titus Alfred Makudali Msagati
Keyword(s):  
Acid Mine Drainage ◽  
Aqueous Solutions ◽  
Metal Ions ◽  
Ferric Oxide ◽  
Mine Drainage ◽  
Toxic Metal ◽  
Ion Exchanger ◽  
Oxide Nanoparticles ◽  
Toxic Metal Ions ◽  
Acid Mine
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