Upgrading a Primary Treatment Plant for Nutrient Removal
Different strategies for upgrading the Sandefjord primary treatment plant for nutrient removal have been evaluated. This plant is characterized by dilute wastewater, large flow variations and low wastewater temperatures. Phosphorus removal was evaluated based on full scale tests at the plant. Nitrogen removal in submerged biological filters was evaluated based on literature data. Cost figures indicate that sewer rehabilitation, in order to reduce the flow and increase the influent wastewater concentrations, will be a good investment.
KeywordsPhosphorus Sludge Sedimentation Sewage Lime
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