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

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 Alginate-based biotechnology: a review on the arsenic removal technologies and future possibilities

2019 ◽  
Vol 68 (6) ◽  
pp. 369-389 ◽  
Author(s):  
Shakhawat Chowdhury ◽  
Imran Rahman Chowdhury ◽  
Fayzul Kabir ◽  
Mohammad Abu Jafar Mazumder ◽  
Md. Hasan Zahir ◽  
...  
Keyword(s):  
Drinking Water ◽  
Arsenic Removal ◽  
Alginate Bead ◽  
Alginate Beads ◽  
Industrial Applications ◽  
Mass Scale ◽  
Future Research ◽  
Large Area ◽  
Arsenic Adsorption ◽  
Wide Range

Abstract The alginate-based adsorption technologies have emerged as potential methods for arsenic removal from drinking water. The adsorbents (iron oxide, hydroxide, nano zero valent iron (nZVI), industrial waste, minerals, magnetite, goethite, zirconium oxide, etc.) are impregnated into alginate beads to produce the media. The biocompatibility, rough surface with large area, and amorphous and high water permeable bead structure improve arsenic adsorption efficiency while the regeneration process is simpler than the conventional adsorbents. In recent years, studies have reported laboratory-scale applications of alginate beads, encapsulated and impregnated with adsorbents, for arsenic removal from drinking water. The arsenic removal efficiencies were reported to be over 95% with a wide range of concentrations (10–1,000 parts per billion) and pH (3.0–7.5). However, commercial- and/or mass-scale applications have not been reported yet, due possibly to overall cost, complexity, reusability, and arsenic waste-laden sludge management. In this paper, research achievement on arsenic removal using alginate-based adsorbents has been reviewed. The review was performed in context to alginate bead development, adsorbent encapsulation and impregnation, application, performance, and regeneration. The advantages and limitations of the methods were analyzed and the scopes of future research were identified for mass scale domestic and industrial applications.

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.

Investigation of Cu(II) removal by cobalt-doped iron oxide captured in PVA-alginate beads

2014 ◽  
Vol 57 (5) ◽  
pp. 2052-2063 ◽  
Author(s):  
Ee Ting Wong ◽  
Kian Hwa Chan ◽  
Muhammad Irfan ◽  
Ani Idris
Keyword(s):  
Iron Oxide ◽  
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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