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description Publicationkeyboard_double_arrow_right Article , Journal 2015 NetherlandsPublisher:Elsevier BV Authors:M-K.H Winkler;
K.F. Ettwig;M-K.H Winkler
M-K.H Winkler in OpenAIRET.P.W. Vannecke;
T.P.W. Vannecke
T.P.W. Vannecke in OpenAIREK. Stultiens;
+3 AuthorsK. Stultiens
K. Stultiens in OpenAIREM-K.H Winkler;
K.F. Ettwig;M-K.H Winkler
M-K.H Winkler in OpenAIRET.P.W. Vannecke;
T.P.W. Vannecke
T.P.W. Vannecke in OpenAIREK. Stultiens;
A. Bogdan;K. Stultiens
K. Stultiens in OpenAIREB. Kartal;
B. Kartal
B. Kartal in OpenAIREE.I.P. Volcke;
E.I.P. Volcke
E.I.P. Volcke in OpenAIREAnaerobic nitrogen removal technologies offer advantages in terms of energy and cost savings over conventional nitrification-denitrification systems. A mathematical model was constructed to evaluate the influence of process operation on the coexistence of nitrite dependent anaerobic methane oxidizing bacteria (n-damo) and anaerobic ammonium oxidizing bacteria (anammox) in a single granule. The nitrite and methane affinity constants of n-damo bacteria were measured experimentally. The biomass yield of n-damo bacteria was derived from experimental data and a thermodynamic state analysis. Through simulations, it was found that the possible survival of n-damo besides anammox bacteria was sensitive to the nitrite/ammonium influent ratio. If ammonium was supplied in excess, n-damo bacteria were outcompeted. At low biomass concentration, n-damo bacteria lost the competition against anammox bacteria. When the biomass loading closely matched the biomass concentration needed for full nutrient removal, strong substrate competition occurred resulting in oscillating removal rates. The simulation results further reveal that smaller granules enabled higher simultaneous ammonium and methane removal efficiencies. The implementation of simultaneous anaerobic methane and ammonium removal will decrease greenhouse gas emissions, but an economic analysis showed that adding anaerobic methane removal to a partial nitritation/anammox process may increase the aeration costs with over 20%. Finally, some considerations were given regarding the practical implementation of the process.
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more_vert add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1016/j.watres.2015.01.039&type=result"></script>'); --> </script>
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