Model-based evaluation of COD influence on a partial nitrification-Anammox biofilm (CANON) process.
A model evaluating COD influence on a partial nitrification-Anammox biofilm process is integrated on the basis of heterotrophic growth as described in ASM3, combined with a previously published model for the CANON process. This integrated model can simulate the activities of heterotrophs and autotrophs involved in a biofilm, and interactions between COD oxidation, denitrification, nitrification and Anammox can be evaluated. Simulations indicate that COD in the influent has no important influence on the trends in the partial nitrification-Anammox biofilm process. Besides full COD removal, a total nitrogen removal efficiency of about 90% can be expected for stable biofilm systems. Furthermore, Anammox is a major contributor to the total nitrogen removal in stable biofilm systems and conventional denitrification only takes a share of <20% in the total nitrogen removal.
The R & D Centre for Sustainable Environmental Biotechnology, Beijing Inst of Civil Engineering and Architecture, Zhanlanguan Road, Beijing, P R China. haoxiaodi@bicea.edu.cn
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van Loosdrecht
D000641:Ammonia / Q000378:metabolism*; D018441:Biofilms; D008962:Models, Theoretical; D009584:Nitrogen / Q000302:isolation & purification*; D010100:Oxygen / Q000737:chemistry; D014865:Waste Disposal, Fluid / Q000379:methods*
D000641:Ammonia; D009584:Nitrogen; D010100:Oxygen