Related Experiment Video
Updated: Jul 10, 2026

Detecting the Water-soluble Chloride Distribution of Cement Paste in a High-precision Way
Published on: November 21, 2017
Hydrated cement: a promising adsorbent for the removal of fluoride from aqueous solution
1Environmental Materials Unit, National Environmental Engineering Research Institute, Nehru Marg, Nagpur, India.
Abstract:
The present study was carried out to investigate the potential of cement hydrated at various time intervals for the removal of excess F- from aqueous solution by using batch adsorption studies. The influence of different adsorption parameters, viz. effect of adsorbent dose, initial concentration, pH, interfering ions and contact time were studied for their optimization. It was observed that the adsorbent exhibited reasonably significant F- removal over a wide range of pH. The presence of carbonate and bicarbonate ions in aqueous solution were found to affect the F- removal indicating that these anions compete with the sorption of F- on adsorbent. The equilibrium adsorption data were fitted well for both the Freundlich and Langmuir isotherms and the adsorption capacities were calculated. Comparative studies for F- removal in simulated and field water show relatively higher F- removal in simulated water. XRD and SEM patterns of the hydrated cement were recorded to get better insight into the mechanism of adsorption process. From the experimental results, it may be concluded that HC was an efficient and economical adsorbent for F- removal.
More Related Videos
Related Concept Videos
Hydration of Cement
Strength and Heat of Hydration
The heat of hydration for each cement compound is significant; for instance, tricalcium aluminate (C3A) and...
Factors Affecting Solubility
Solubility Equilibria: Overview
Solubility is important in biological and environmental processes. A notable...
Porosity in Cement Paste
The balance of water to cement in the mix is critical—it...
Fineness of Cement
Direct...

