Results both from a pilot-plant investigation and from full-scale stabilization ponds operating with phosphate precipitation are presented. Since the removal of organic matter by coagulation is more important than that by biodegradation, the ponds may be heavily loaded. Biodegradation, during winter can be improved by pond aeration, and chemical precipitation in an aerated pond may give a very good and stable effluent.
Chemical Precipitation in Highly Loaded Stabilization Ponds in Cold Climates: Scandinavian Experiences
H. Ødegaard, P. Balmer, J. Hanæus; Chemical Precipitation in Highly Loaded Stabilization Ponds in Cold Climates: Scandinavian Experiences. Water Sci Technol 1 December 1987; 19 (12): 71–77. doi: https://doi.org/10.2166/wst.1987.0129
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