Arsenic removal effectiveness of iron oxide-based fibrous adsorbents and stability of granular iron oxide media

2021 ◽  
Author(s):  
Arun Kumar
Keyword(s):  
Iron Oxide ◽  
Arsenic Removal ◽  
Granular Iron

Arsenic removal by iron oxide coated sponge: Experimental performance and mathematical models

2010 ◽  
Vol 182 (1-3) ◽  
pp. 723-729 ◽  
Author(s):  
Tien Vinh Nguyen ◽  
Saravanamuthu Vigneswaran ◽  
Huu Hao Ngo ◽  
Jaya Kandasamy
Keyword(s):  
Iron Oxide ◽  
Mathematical Models ◽  
Arsenic Removal ◽  
Experimental Performance

scholarly journals Ultra-long magnetic nanochains for highly efficient arsenic removal from water

2014 ◽  
Vol 2 (32) ◽  
pp. 12974-12981 ◽  
Author(s):  
Gautom Kumar Das ◽  
Cecile S. Bonifacio ◽  
Julius De Rojas ◽  
Kai Liu ◽  
Klaus van Benthem ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Arsenic Removal ◽  
Oxide Nanoparticles ◽  
Highly Efficient

Ultralong chains of iron oxide nanoparticles make excellent adsorbents of arsenic in water.

Developing new adsorptive membrane by modification of support layer with iron oxide microspheres for arsenic removal

2018 ◽  
Vol 514 ◽  
pp. 760-768 ◽  
Author(s):  
Xuan Zhang ◽  
Xiaofeng Fang ◽  
Jiansheng Li ◽  
Shunlong Pan ◽  
Xiuyun Sun ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Arsenic Removal ◽  
Adsorptive Membrane

scholarly journals Arsenic removal using Prosopis spicigera L. wood (PsLw) carbon–iron oxide composite

2020 ◽  
Vol 10 (9) ◽  
Author(s):  
Ramasubbu DhanaRamalakshmi ◽  
Mahalingam Murugan ◽  
Vincent Jeyabal
Keyword(s):  
Iron Oxide ◽  
Large Scale ◽  
Adsorption Process ◽  
Arsenic Removal ◽  
Freundlich Isotherm ◽  
Second Order ◽  
Batch Adsorption ◽  
Experimental Conditions ◽  
Initial Concentration ◽  
Oxide Composite

Abstract The present manuscript reports the removal of arsenic from aqueous solution using iron oxide composite of carbon derived from the plant material Prosopis spicigera L. wood which depletes the ground water of ponds, lakes and other water bodies. The adsorbent was characterised by Fourier Transform Infra Red spectroscopy and Scanning Electron Microscope for surface analysis; Brunauer–Emmett–Teller and methylene blue method for surface area determination and pHzpc for surface charge determination. Experimental conditions such as pH, contact time, adsorbate initial concentration and in the presence other ions are varied to study the batch adsorption equilibrium experiment. The adsorption process was tested with Langmuir and Freundlich isotherm model and Langmuir isotherm was best suited. Sorption kinetics was analysed with pseudo-first- and second-order kinetics but adsorption follows second order kinetics. For an initial concentration of 60 mg/L of As(III) ions, adsorption capacity was found to be 83.84 mg/g at pH = 6.0. Thermodynamically the adsorption process is spontaneous, feasible and endothermic in nature. Adsorption involves pore diffusion, external mass transfer and complex formation. Column study was performed to apply this process for large scale treatment.

Arsenic Removal Using Iron Oxide Loaded Alginate Beads

2002 ◽  
Vol 41 (24) ◽  
pp. 6149-6155 ◽  
Author(s):  
Anastasios I. Zouboulis ◽  
Ioannis A. Katsoyiannis
Keyword(s):  
Iron Oxide ◽  
Arsenic Removal ◽  
Alginate Beads

scholarly journals Decontamination of spent iron-oxide coated sand from filters used in arsenic removal

Chemosphere ◽  
2013 ◽  
Vol 92 (2) ◽  
pp. 196-200 ◽  
Author(s):  
Ismail M.M. Rahman ◽  
Zinnat A. Begum ◽  
Hikaru Sawai ◽  
Teruya Maki ◽  
Hiroshi Hasegawa
Keyword(s):  
Iron Oxide ◽  
Arsenic Removal ◽  
Coated Sand

A Hybrid Sorbent Utilizing Nanoparticles of Hydrous Iron Oxide for Arsenic Removal from Drinking Water

2007 ◽  
Vol 24 (1) ◽  
pp. 104-112 ◽  
Author(s):  
P. Sylvester ◽  
P. Westerhoff ◽  
T. Möller ◽  
M. Badruzzaman ◽  
O. Boyd
Keyword(s):  
Drinking Water ◽  
Iron Oxide ◽  
Arsenic Removal ◽  
Hybrid Sorbent ◽  
Hydrous Iron Oxide

Arsenic Removal from Water by Adsorption Using Iron Oxide Minerals as Adsorbents: A Review

2012 ◽  
Vol 33 (5) ◽  
pp. 301-315 ◽  
Author(s):  
Marisol Gallegos-Garcia ◽  
Kardia Ramírez-Muñiz ◽  
Shaoxian Song
Keyword(s):  
Iron Oxide ◽  
Arsenic Removal ◽  
Oxide Minerals

scholarly journals Removal and Oxidation of As(III) from Water Using Iron Oxide Coated CTAB as Adsorbent

Polymers ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 1687 ◽  
Author(s):  
Daniela Predoi ◽  
Simona Liliana Iconaru ◽  
Mihai Valentin Predoi ◽  
Mikael Motelica-Heino
Keyword(s):  
Iron Oxide ◽  
Aqueous Solutions ◽  
Photoelectron Spectroscopy ◽  
Arsenic Removal ◽  
Morphological Changes ◽  
Xrd Analysis ◽  
Precipitation Method ◽  
Cubic Phase ◽  
Separation Procedure ◽  
X Ray

Iron oxides such as magnetite and maghemite coated with cetyltrimethylammonium bromide (CTAB) are very promising materials for wastewater treatment because iron oxide can be easily separated from solutions using the magnetic separation procedure Iron oxide (IO) coated CTAB was synthesized by an adapted co-precipitation method. In the present study, the IO-CTAB was used for removing arsenic from water for the first time. In the present study, the performance of iron oxide coated CTAB biocomposites as an adsorbent for arsenic removal from aqueous solutions was examined. X-ray diffraction (XRD) analysis and the results revealed a cubic phase Fd-3 m of Fe3O4 with lattice a = 8.40 Å and average crystal size equal to 17.26 ± 3 nm. The mean particle size calculated from transmission electron microscopy (TEM) was 19.86 ±1.7 nm. The results of the adsorption batch experiments and the data determined using the Langmuir and Freundlich models emphasized that IO-CTAB nanoparticles were favorable for the adsorption of As(III) ions from aqueous solutions. Ultrasound measurements have shown that IO-CTAB is a cost-effective biocomposite for removing arsenic from contaminated solutions. Moreover, x-ray photoelectron spectroscopy (XPS) has shown that during the process of arsenic absorption, there is oxidation from As(III) to As(V), which leads to a decrease in toxicity during this process. The results of the cytotoxic assays confirmed that the IO-CTAB nanoparticles did not induce any morphological changes in the HeLa cells and did not affect their proliferation after 24 h of incubation.

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