Enhanced Biological Phosphorus Removal and Recovery
Authors: Machnicka, Alicja; Grűbel, Klaudiusz; Suschka, Jan
Source: Water Environment Research, Volume 80, Number 7, July 2008 , pp. 617-623(7)
Publisher: Water Environment Federation
Abstract:Activated sludge systems designed for enhanced nutrient removal are based on the principle of altering anaerobic and aerobic conditions for growth of microorganisms with a high capacity of phosphorus accumulation. Most often, filamentous bacteria constitute a component of the activated sludge microflora. The filamentous microorganisms are responsible for foam formation and activated sludge bulking. The results obtained confirm unanimously that the filamentous bacteria have the ability of phosphorus uptake and accumulation as polyphosphates. Hydrodynamic disintegration of the foam microorganisms results in the transfer of phosphorus and metal cations and ammonium-nitrogen into the liquid phase. It was demonstrated that the disintegration of foam permits the removal of a portion of the nutrients in the form of struvite.
Document Type: Research Article
Publication date: 2008-07-01
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