Factors Affecting Coagulation of Phosphorus from Municipal Sewage

Abstract:

A laboratory, jar-test type study was conducted to investigate the effect of operational parameters on coagulation efficiency when PACl and ferric chloride are used. Under the same dosages, TP removal by ferric chloride was more effective than that of PACl with municipal fresh sewage, while PACl was superior to ferric chloride in case filtered municipal fresh sewage was used as feed. Zeta potential is believed to be a feasible parameter for the determining of appropriate coagulant dosage. Optimal pH for TOC removal was about 6.0, which is slightly lower than that for turbidity and color removal. There are no significant difference in the removal of TOC, turbidity and color over the range of GT values 12,780~112,800.

• Periodical: Materials Science Forum (Volume 724)
• Pages: 93-96
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.724.93
• Online since: June 2012
• Authors: Jong Oh Kim, Jung Ho Moon
• Keywords: Chemical Coagulant, Municipal Sewage, Operational Parameters, Zeta-Potential

References

[1] Kim J. -O. and I. Somiya: Jour of Japan Sewage Works Association, Vol. 35 (441) (1999), pp.101-109.

[2] Ghosh M, A. Amirtharajah and A. AdinParticle: Wat. Sci. Tech., Vol. 30 (9) (1994), pp.209-218.

[3] APHA, AWWA, WEF, Standard Methods for the Examination of Water and Wastewater (2007).

[4] Patrick N. Johnson and A. Amirtharajah: Jour. of AWWA, (1983), pp.232-237.

[5] Mark E. and Mark M. Benjamin.: Jour. of AWWA, (1991), pp.96-105.