New Approach for the Removal of Metal Ions from Water:  Adsorption onto Aquatic Plants and Microwave Reaction for the Fabrication of Nanometals

2005 ◽  
Vol 109 (32) ◽  
pp. 15179-15181 ◽  
Author(s):  
B. Chefetz ◽  
L. Sominski ◽  
M. Pinchas ◽  
T. Ginsburg ◽  
S. Elmachliy ◽  
...  
Keyword(s):  
Metal Ions ◽  
Aquatic Plants ◽  
Water Adsorption ◽  
New Approach ◽  
Microwave Reaction ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

scholarly journals Ferrate(VI) Synthesis Using Fe(OH)3 from Waste Iron Electrolysis and Its Application for the Removal of Metal Ions and Anions in Water

2021 ◽  
Vol 21 (6) ◽  
pp. 1397
Author(s):  
Gunawan Gunawan ◽  
Abdul Haris ◽  
Nor Basid Adiwibawa Prasetya ◽  
Eka Pratista ◽  
Azis Amrullah
Keyword(s):  
Metal Ions ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
New Approach ◽  
Iron And Zinc ◽  
Alkaline Conditions ◽  
Removal Of Metal ◽  
Iron Electrolysis ◽  
Removal Of Metal Ions

Ferrate(VI) salt is an effective oxidant and coagulant for water treatment and removal of metal ions. This study demonstrates a new approach to processing metal ions and anions in water by Fe(VI) through Fe(III) obtained from the electrolysis of waste iron transformer. The electrolysis was successfully carried out in the Na2SO4 electrolyte using waste iron and zinc plates as anode and cathode, respectively. Fe(III) electrolysis results through the characterization of FTIR and XRD indicate compliance with Fe(OH)3 standards. Synthesis of ferrate was carried out by adding Fe(III) from electrolysis with NaOCl in alkaline conditions. The formed ferrate solution shows a purple color with a typical maximum wavelength of 505 nm. Furthermore, the ferrate obtained is used to remove metal ions (Fe(III), Cu(II), Zn(II), Mg(II), Pb(II)) and anions (sulfate, nitrate, and carbonate) in water with pH variations. Ferrate treatment filtrate was analyzed using AAS for metal ions, while sulfate, nitrate, and carbonate anions used UV-Vis spectrophotometry, turbidimetry, and titration methods. The results showed that ferrate effectively eliminates metal ions and anions in water with optimum pH 6. The mechanism of heavy metal removal by ferrate(VI) can be explained by ionic bonding and adsorption.

Utilization of Polysaccharides and their Derivatives in the Removal of Metal Ions: Role and Recent Advancement

2020 ◽  
Vol 13 ◽  
Author(s):  
Rishabha Malviya ◽  
Pramod Sharma ◽  
Akanksha Sharma
Keyword(s):  
Waste Water ◽  
Heavy Metal ◽  
Metal Ions ◽  
Industrial Waste ◽  
Heavy Metal Ions ◽  
Environmental Hazards ◽  
Industrial Waste Water ◽  
Recent Advancement ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

: Manuscript discussed about the role of polysaccharides and their derivatives in the removal of metal ions from industrial waste water. Quick modernization and industrialization increases the amount of various heavy metal ions in the environment. They can possess various disease in humans and also causes drastic environmental hazards. In this review the recent advancement for the adsorption of heavy metal ions from waste water by using different methods has been studied. Various natural polymers and their derivatives are act as effective adsorbents for the removal of heavy metal ions from the waste water released from the industries and the treated water released into the environment can decreases the chances of diseases in humans and environmental hazards. From the literature surveys it was concluded that the removal of heavy metal ions from the industrial waste water was important to decrease the environmental pollution and also diseases caused by the heavy metal ions. Graft copolymers were acts as most efficient adsorbent for the removal of heavy metal ions and most of these followed the pseudo first order and pseudo second order model of kinetics.

scholarly journals Removal of metal ions and humic acids through polyetherimide membrane with grafted bentonite clay

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Raghavendra S. Hebbar ◽  
Arun M. Isloor ◽  
Balakrishna Prabhu ◽  
Inamuddin ◽  
Abdullah M. Asiri ◽  
...  
Keyword(s):  
Metal Ions ◽  
Humic Acids ◽  
Bentonite Clay ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

Removal of metal ions from a petrochemical wastewater using brown macro-algae as natural cation-exchangers

2016 ◽  
Vol 286 ◽  
pp. 1-15 ◽  
Author(s):  
Maria A.P. Cechinel ◽  
Diego A. Mayer ◽  
Tatiana A. Pozdniakova ◽  
Luciana P. Mazur ◽  
Rui A.R. Boaventura ◽  
...  
Keyword(s):  
Metal Ions ◽  
Petrochemical Wastewater ◽  
Cation Exchangers ◽  
Removal Of Metal ◽  
Removal Of Metal Ions ◽  
Macro Algae

Lipoprotein biosurfactant production from an extreme acidophile using fish oil and its immobilization in nanoporous activated carbon for the removal of Ca2+and Cr3+in aqueous solution

RSC Advances ◽  
2014 ◽  
Vol 4 (64) ◽  
pp. 34144-34155 ◽  
Author(s):  
P. Saranya ◽  
S. Swarnalatha ◽  
G. Sekaran
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Fish Oil ◽  
Metal Ions ◽  
Biosurfactant Production ◽  
Removal Of Metal ◽  
Removal Of Metal Ions ◽  
Nanoporous Activated Carbon

Lipoprotein biosurfactant from extreme acidophile using fish oil and its immobilization in nanoporous activated carbon for removal of metal ions.

Microwave induced activated carbon for the removal of metal ions in fixed-bed column study: modelling and mechanisms

2021 ◽  
Vol 221 ◽  
pp. 139-151
Author(s):  
Omar S.A. Al-Khazrajy ◽  
Salam A. Mohammed ◽  
Omaimah Al-Musallami ◽  
Zahour Al-Rawahi ◽  
Emad Yousif
Keyword(s):  
Activated Carbon ◽  
Metal Ions ◽  
Fixed Bed ◽  
Fixed Bed Column ◽  
Column Study ◽  
Removal Of Metal ◽  
Removal Of Metal Ions
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