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Optimization of new anaerobic process of biological nitrogen removalтезисы доклада
- Авторы: Trukhina A., Gladchenko M., Kalyuzhnyi S.
- Сборник: In: Abstract book of Intern. Conf. Biocatalysis-2009: Fundamentals & Applications
- Тезисы
- Год издания: 2009
- Место издания: Arkhangelsk, Russia
- Первая страница: 36
- Аннотация: As the human population has grown and the power of technology has expanded, the concentration of soluble nitrogen species in biosphere has almost doubled in the last decades. Nowadays, a significant part of these species enters to the water system via wastewaters causing a toxic affect not only on aquatic organisms, but also on humans. So, the development and improving wastewater treatment technologies is required and the use of new microbiological technologies may greatly improve a quality of treatment. Since the first observation of ANAMMOX (anaerobic ammonium oxidation) in an autotrophic denitrification reactor, numerous researches about the ANAMMOX -based conversion have been accomplished and other relating projects are still proceeding around the world over the last decade. Through ANAMMOX process, ammonium is converted into dinitrogen gas using nitrite as an electron donor in anaerobic condition: NH4+ + NO2- → N2 + 2Н2О Since this process requires nitrite, which is hardly available in common wastewater, as an electron acceptor, most of ANAMMOX removal technologies include the pre-treatment system for producing nitrite. Recently, a new ANAMMOX-based process called DEAMOX (DEnitrifying AMmonia OXidation) was developed by our. It combines the ANAMMOX reaction with denitratation for the production of nitrite from nitrate within an anaerobic biofilm. This paper at first presents the start-up of the DEAMOX process. Two different donors: inorganic - sulphide (Sulphide-DEAMOX process) and organic - acetate (Organics-DEAMOX process) were applied for denitratation of nitrate into nitrite. And further the both process with regard to pH, bicarbonate and temperature were optimised.
- Добавил в систему: Гладченко Марина Анатольевна