Determining calcium carbonate neutralization kinetics from experimental laboratory data
- 335 Downloads
In the framework of a research aimed at estimating the performance and lifetime of porous filters filled with marble powder and used to neutralize acid waters, we propose a mathematical model for determining the calcium carbonate reaction kinetics from some experimental data. In particular we show how to determine the order of the reaction and the reaction rate when calcium carbonate is immersed in a HCl solution. These parameters are evaluated by means of a fitting procedure based on least square methods. The experiments are performed using CaCO3 in the form of a slab and powder and measuring (by means of BET analysis) the specific reaction surface.
KeywordsNeutralization Mathematical modelling Calcium carbonate Reaction kinetics
Unable to display preview. Download preview PDF.
- 1.Starnes L.B., Gasper D.C.: Effects of surface mining on aquatic resources in North America. Fisheries 20, 20–23 (1995)Google Scholar
- 7.P.L. Sibrell, B.J. Watten, Evaluation of sludge produced by limestone neutralization of AMD at the Friendship Hill National Historic Site, in Proceedings of the 20th Annual Meeting American Society for Mining and Reclamation, Billings, Montana, (2003), pp. 1151–1169Google Scholar
- 10.Pepe Herrera S., Uchiyama H., Igarashi T., Asakura K., Ochi Y., Ishizuka F., Kawada S.: Acid mine drainage treatment through a two-step neutralization ferrite-formation process in northern Japan: physical and chemical characterization of the sludge. Miner. Eng. 20, 1309–1314 (2007)CrossRefGoogle Scholar
- 15.Brunauer S.: Physical Adsorption. Princeton University Press, Princeton (1945)Google Scholar