Effects of Ph on Calcium Carbonate Precipitation Under Magnetic Field

Authors

Nelson Saksono, Department of Chemical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, IndonesiaFollow
Yuliusman Yuliusman, Department of Chemical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, Indonesia
Setijo Bismo, Department of Chemical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, Indonesia
Roekmijati W. Soemantojo, Department of Chemical Engineering, Faculty of Engineering, University of Indonesia, Depok 16424, Indonesia
Azwar Manaf, Department of Physics, Faculty of Mathematics and Science, University of Indonesia, Depok 16424 Indonesia

Abstract

Magnetic field effect on CaCO3 precipitation is the key parameter in evaluating the effectiveness of Anti-scale Magnetic Treatment (AMT). The purpose of this study was to investigate magnetic fields influence on CaCO3 precipitation in high and low super-saturated CaCO3 solution by varied pH CaCO3 solution using circulation flow fluid system. The observation results in the high super saturated solution (pH 8.5) showed the increase of precipited CaCO3 in magnetized solutions compared to those in non-magnetic solution during circulation process. In the low super-saturated CaCO3 solution (pH 6.4) it was found that magnetic treatment increased CaCO3 precipitation after circulation process. In high super-saturated solution, magnetic field strengthens ion interactions, which reduce precipitation during circulation process. However, in low super-saturated CaCO3 solution, magnetic field weakens hydrate ion interaction which indicated by decreasing of the conductivity of solution. It increases the precipitation of CaCO3 after the circulation of magnetization process has completed.

References

1. V. Kozic, L.C. Lipus, Journal Chem. Inf. Comput. Sci., 43 (2003) 1815.
2. S. Baker, S.J. Judd, Water Research, 30/2 (1996) 247.
3. A.D. Kney, S.A. Parsons, Water Res., 40 (2006) 517.
4. K. Higashitani, A. Kage, S. Katamura, K. Imai, S. Hatade, Journal ournal Colloid and Interface Science. 156 (1993) 90.
5. Lundager, Madsen, Journal of Crystal Growth, 267 (2004) 251-255.
6. C. Gabrielli, R. Jaouhari, G. Maurin, M. Keddam, Water Res. 35 (2001) 3249.
7. A. Fathi, M. Tlili, C. Gabrelli, G. Maurin, M. Ben Amor, Water Res. 40, (2006) 1941.
8. N. Saksono, A. Fauzi., S. Bismo, A. Manaf, R.W. Soemantojo, 14th Regional Symposium Chemical Engineering Proceeding, Yogyakarta, 2007.
9. N. Saksono, A.S. Elisabeth, S. Bismo, R.W. Soemantojo, A. Manaf, Jurnal Sain Materi Indonesia, Edisi Khusus Oktober. (2007), p.196-201.
10. L. Holysz, E. Chibowski, S. Aleksandra, Journal of Colloid and Interface Science, 316 (2007) 2065-2070.

Recommended Citation

Saksono, Nelson; Yuliusman, Yuliusman; Bismo, Setijo; Soemantojo, Roekmijati W.; and Manaf, Azwar (2009) "Effects of Ph on Calcium Carbonate Precipitation Under Magnetic Field," Makara Journal of Technology: Vol. 13: Iss. 2, Article 5.
DOI: 10.7454/mst.v13i2.479
Available at: https://scholarhub.ui.ac.id/mjt/vol13/iss2/5