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.

Characterization of Magnetic Nanoiron Oxides for the Removal of Metal Ions from Aqueous Solution

2017 ◽  
Vol 50 (17) ◽  
pp. 2822-2838 ◽  
Author(s):  
Ecaterina Matei ◽  
Andra Predescu ◽  
Claudia Drăgan ◽  
Cristian Pantilimon ◽  
Cristian Predescu
Keyword(s):  
Aqueous Solution ◽  
Metal Ions ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

scholarly journals Using of wooden sawdust for copper removal from waters

2019 ◽  
Vol 18 (1) ◽  
pp. 66-71 ◽  
Author(s):  
Stefan Demcak ◽  
Magdalena Balintova ◽  
Maria Demcakova ◽  
Inga Zinicovscaia ◽  
Nikita Yushin ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Binding ◽  
Metal Removal ◽  
Heavy Metal Removal ◽  
Waste Products ◽  
Heavy Metal Binding ◽  
Potential Alternative ◽  
Ft Ir ◽  
Removal Of Metal ◽  
Removal Of Metal Ions

Abstract The heavy metal removal from wastewater is very important due to their persistent character in aquatic environment. The use of wooden sawdust is emerging as a potential alternative to the existing conventional technologies for the removal of metal ions from aqueous solutions. The aim of this work is to study the Cu(II) removal of from water by unconventional waste products including the wooden sawdust of poplar, cherry, spruce and hornbeam. The FT-IR spectra of the studied wooden sawdust confirmed the presence of functional groups that have potential for heavy metal binding. The highest efficiency of Cu(II) removal was observed for poplar wooden sawdust at static (86 %) and dynamic (88 %) adsorption experiments. Data obtained by neutron activation analysis revealed that ion exchange is also a mechanism of metal removal by the selected wooden sawdust.

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.

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