Related Experiment Video
Updated: May 10, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Arsenic removal using natural biomaterial-based sorbents
Linda Ansone1, Maris Klavins, Arturs Viksna
1Department of Environmental Science, University of Latvia, Raina Blvd 19, Riga, Latvia. linda_ansone@inbox.lv
Abstract:
Arsenic contamination of water is a major problem worldwide. A possible solution can be approached through developing new sorbents based on cost-effective and environmentally friendly natural biomaterials. We have developed new sorbents based on biomaterial impregnation with iron oxyhydroxide. In this study, raw peat material, iron-modified peat, iron-modified biomass (shingles, straw, sands, cane and moss) as well as iron humate were used for the removal of arsenate from contaminated water. The highest sorption capacity was observed in iron-modified peat, and kinetic studies indicated that the amount of arsenic sorbed on this material exceeds 90 % in 5 h. Arsenate sorption on iron-modified peat is characterised by the pseudo-second-order mechanism. The results of arsenic sorption in the presence of competing substances indicated that sulphate, nitrate, chloride and tartrate anions have practically no influence on As(V) sorption onto Fe-modified peat, whereas the presence of phosphate ions and humic acid significantly lowers the arsenic removal efficiency.
More Related Videos
08:34A Dual-Functional Electroactive Filter Towards Simultaneously Sb(III) Oxidation and Sequestration
Published on: December 5, 2019
10:44Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for Cu(II) Through Microwave Pre-Pyrolysis
Published on: February 12, 2019
Related Concept Videos
Pharmaceutical Poisoning: Treatment Strategies
Enhanced Elimination of Poison
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
Microbial Bioremediation of Uranium
Prevention of Further Absorption of Poison
Microbial Leaching
Extraction: Advanced Methods