Arsenic removal in an iron oxide-coated fungal biomass column: Analysis of breakthrough curves

2008 ◽  
Vol 99 (6) ◽  
pp. 2067-2071 ◽  
Author(s):  
D. Pokhrel ◽  
T. Viraraghavan
Keyword(s):  
Iron Oxide ◽  
Fungal Biomass ◽  
Arsenic Removal ◽  
Breakthrough Curves

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 Iron Oxide-Coated Gravel Fixed Bed Column Study Performance to Remove Mixed Metals from Landfill Leachate

2019 ◽  
Vol 122 ◽  
pp. 01002 ◽  
Author(s):  
Ibrahim Yildiz ◽  
Banu Sizirici
Keyword(s):  
Iron Oxide ◽  
Fixed Bed ◽  
Breakthrough Curves ◽  
Fixed Bed Column ◽  
Desorption Process ◽  
Column Study ◽  
Regeneration Capability ◽  
Synthetic Leachate ◽  
Adsorption Desorption ◽  
Study Performance

Iron oxide-coated gravel as an adsorbent was employed in continuous fixed bed column study to remove Fe(II), Ni(II), and Zn(II) simultaneously in synthetic leachate samples. Experimental and modeled adsorption capacities derived from the breakthrough curves showed the adsorption capacity order of Zn(II)>Fe(II)> Ni(II). Iron oxide-coated gravel column removed 58.24% of Zn(II), 47.71% of Fe(II), and 39.45% of Ni(II). Desorption process was studied in order to test the regeneration capability of iron oxidecoated gravel. It was seen that 99.64 % of Ni(II), 99.54% of Fe(II) and 6.75% of Zn (II) were recovered through the first cycle of adsorption/desorption. In the second cycle, the recovery rates dropped to 81.4% for Ni(II), 80% for Fe(II) and 4% for Zn(II). Based on these results, iron oxide coated gravel has potential to remove mixed metal ions simultaneously in aqueous solutions.

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
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