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Updated: Dec 12, 2025
08:01
Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
7.8K
Review: Efficiently performing periodic elements with modern adsorption technologies for arsenic removal
Md Jamal Uddin1, Yeon-Koo Jeong2
1Department of Environmental Engineering, Kumoh National Institute of Technology, 61 Daehak-ro, Gumi, Gyeongbuk, 39177, Republic of Korea. jamal_swedu@yahoo.com.
Environmental Science and Pollution Research International
|August 11, 2020
Summary
Arsenic toxicity is a global threat. Iron-based adsorbents, especially nanoparticles and mixed-element materials, show superior arsenic removal from drinking water, offering a cost-effective and safe solution.
Area of Science:
- Environmental Science
- Water Treatment Technologies
- Materials Science
Background:
- Arsenic contamination in water poses a significant global health risk, particularly in regions like Bangladesh and India.
- Anthropogenic activities exacerbate arsenic levels in natural water sources.
- Arsenic-contaminated water is a primary concern for drinking water treatment plants worldwide.
Purpose of the Study:
- To review and highlight the effectiveness of adsorption as a method for arsenic removal from water.
- To identify and evaluate various adsorbent materials, with a focus on iron-based compounds.
- To explore the potential of advanced adsorbent technologies, including nanoparticles and mixed-element materials.
Main Methods:
- Extensive literature review on arsenic removal techniques.
- Analysis of studies focusing on iron-based adsorbents, including oxides, hydroxides, and nanoparticles.
- Investigation of mixed-element adsorbents and metal-organic frameworks for arsenic adsorption.
- Evaluation of arsenic oxidation and adsorption mechanisms.
Main Results:
- Iron-based adsorbents demonstrate excellent capacity for reducing arsenic concentrations below recommended levels.
- Nanoparticles of iron, titanium, copper, and zirconium show enhanced arsenic removal efficiency.
- Mixed-element adsorbents (e.g., Fe-Mn, Fe-Ti) exhibit efficient arsenic removal, often involving oxidation of arsenite to arsenate.
- Porous materials as carriers for nano-adsorbents improve separation and performance.
Conclusions:
- Adsorption using iron-based materials is a highly effective and cost-efficient method for arsenic removal.
- Nanostructured and mixed-element adsorbents offer superior performance in arsenic remediation.
- Utilizing porous carriers can overcome separation challenges associated with nano-adsorbents, enhancing practical application.
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