Preparation of Calcium Carbonate Nanoparticles: Adsorption and Desorption Behavior of Organic Matter

Abstract

In this research the adsorption of organic matter onto calcium carbonate (CaCO3) nanoparticles was studied. CaCO3 nanoparticles were prepared by purging CO2 gas into lime slurry. Progress of the reaction was monitored by online measurement of pH and conductivity. Prepared particles were contacted with organic matter synthetic solutions. Organic matter removal rates during adsorption were higher in samples with a high initial organic matter concentration. This result would be a promising solution strategy for the problem of management of flows collected in the treatment concentrates of membrane filtration plants.

Keywords

• calcium carbonate particles
• humic acid
• organic material
• adsorption