Related Experiment Video
Updated: May 9, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Aminopolycarboxylic acid functionalized adsorbents for heavy metals removal from water
Eveliina Repo1, Jolanta K Warchoł, Amit Bhatnagar
1Laboratory of Green Chemistry, LUT Savo Sustainable Technologies, Lappeenranta University of Technology, Sammonkatu 12, FI-50130 Mikkeli, Finland. Eveliina.Repo@lut.fi
Abstract:
Due to the excellent chelating properties of aminopolycarboxylic acid (APCAs), they can be used for the removal of metals from contaminated waters. This paper reviews the research results obtained for both commercial and self-prepared adsorbents functionalized with four most common APCAs: iminodiacetic acid (IDA), nitrilotriacetic acid (NTA), ethylenediaminetetraacetic acid (EDTA), and diethylenetriaminepentaacetic acid (DTPA). The structural characteristics and unique metal binding properties of these chelating adsorbents are presented. The theory of the adsorption phenomena is discussed based on the kinetics of adsorption, equilibrium adsorption isotherm models, and thermodynamic models. The most important applications of APCA-functionalized adsorbents are also described. APCA-functionalized adsorbents are found to be highly promising materials for metal removal from contaminated waters.
More Related Videos
Related Concept Videos
Extraction: Advanced Methods
Ion Exchange
Precipitation and Co-precipitation
Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration
Ion-Exchange Chromatography
Complexometric Titration: Ligands

