AEROBIC NITRITATION OF AMMONIA AND INTEGRATED ANAMMOX PROCESSES

Processes are disclosed for the microbial nitritation of ammonia that attenuate the production of at least one of nitrate anion and nitrous oxide. The processes use an ME biocatalyst having a highly porous, hydrophilic polymeric structure with ammonia-oxidizing microorganisms substantially irreversi...

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Bibliographische Detailangaben
Hauptverfasser:	MCGRATH, Casey, SHIRAZI, Fatemeh, GREGG, Allison, RAZAVI, Ameen
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE VINEGAR WINE
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Beschreibung
Zusammenfassung:	Processes are disclosed for the microbial nitritation of ammonia that attenuate the production of at least one of nitrate anion and nitrous oxide. The processes use an ME biocatalyst having a highly porous, hydrophilic polymeric structure with ammonia-oxidizing microorganisms substantially irreversibly retained therein. The processes are particularly useful for integration with anammox processes. L'invention concerne des procédés de nitritation microbienne de l'ammoniac qui atténuent la production d'un anion nitrate et/ou d'oxyde nitreux. Les procédés utilisent un biocatalyseur ME ayant une structure polymère hydrophile hautement poreuse comprenant des micro-organismes oxydant l'ammoniac retenus de manière pratiquement irréversible en son sein. Les procédés sont particulièrement utiles pour être intégrés à des procédés anammox.