Mohammad Azari

Dr.-Ing. Mohammad Ebrahim Azari

 Wissenschaftlicher Mitarbeiter, Postdoc.

DAAD Stipendiat im Programm "NaWaM" von 2014 - 2018

Aktuelles Forschungsprojekt Untersuchungen zur Deammonifikation im Hauptstrom von Kläranlagen (ANAMMOSTROM)

Deammonification steht zunächst eine Umwandlung von etwa der Hälfte des Ammoniums zu Nitrit, das anschließend unter anaeroben Bedingungen mit Hilfe Anammox Bakterien zusammen mit der anderen Hälfte des Ammoniums zu gasförmigem Stickstoff umgewandelt wird. Aufgrund der großen Vorteile wie Energieeinsparung und Reduktion des Überschussschlammes ist der Prozess theoretisch auch für den Hauptstrom von Kläranlagen sinnvoll. Die Bedingungen im Hauptstrom unterscheiden sich aber wesentlich von denen im Nebenstrom und zwar in den folgenden Punkten: Temperatur, C/N-Verhältnis und Stickstoff- sowie Sauerstoffkonzentration. Das Projekt lässt sich grob in drei Bereiche teilen: i. Reduzierung des zulaufenden Kohlenstoffs., ii. Etablierung der Anammox-Biozönose und iii. Untersuchungen zur Temperaturstabilität. Zur Etablierung des Biofilms sollen zwei Optionen untersucht werden: (a) Biofilm auf einer Feststoffoberfläche mit dem IFAS Prinzip (Integrated Fixed Film Activated Sludge) (b) granulärer Biofilm.

F&E-Projekte zur Abwasserbeseitigung; Kategorie: ResA

Gefördert durch: Das Landesamt für Natur, Umwelt und Verbraucherschutz Nordrhein-Westfalen (LANUV)

Investigations on deammonification in the mainstream of sewage treatment plants (ANAMMOSTROM)

Deammonification refers to the conversion of about half of the ammonium to nitrite, which is then converted under anaerobic conditions using Anammox bacteria together with the other half of the ammonium to gaseous nitrogen  Due to the great advantages such as energy savings and reduction of surplus sludge, the process is theoretically useful for the mainstream of sewage treatment plants. The conditions in the main stream, however, differ significantly from those in the secondary stream in the following points: temperature, C / N ratio and nitrogen and oxygen concentration. The project can be divided into three areas: i. Reduction of the incoming carbon., ii. Establishment of Anammox biocenosis and iii. Studies on temperature stability. To establish the biofilm, two options will be investigated: (a) biofilm on plastic carriers using the IFAS (Integrated Fixed Film Activated Sludge) (b) granular biofilm.

R & D project for wastewater treatment; Category: ResA

Funded by State Agency for Nature, Environment and Consumer Protection (LANUV)

Publikationen

2020

• Azari, M., Aslani, A., Denecke, M., (2020) The effect of the COD: N ratio on mainstream deammonification in an integrated fixed-film activated sludge sequencing batch reactor. Chemosphere Volume 259, November 2020, 127426, https://doi.org/10.1016/j.chemosphere.2020.127426

2018

• Wang, Q., Tan, G.Y.A., Azari, M., Huang, X., Denecke, M., Men, Y., Jung, J.Y., Okabe, S., Ali, M., Huang, Y.T. and Wu, Z. (2018) Insights into the roles of anammox bacteria in post-treatment of anaerobically-treated sewage. Critical Reviews in Environmental Science and Technology, 48(6), pp.655-684
• Azari, M., Le, A.V., Lübken, M. and Denecke, M. (2018) Model-based analysis of microbial consortia and microbial products in an anammox biofilm reactor. Water Science and Technology, 81, DOI: 10.2166/wst.2018.081
• Steuernagel, L., de León Gallegos, E. L., Azizan, A., Dampmann, A., Azari, M., Denecke, M. ​​(2018) Availability of carbon sources on the ratio of nitrifying microbial biomass in an industrial activated sludge. International Biodeterioration & Biodegradation. Article in Press. https://doi.org/10.1016/j.ibiod.2018.02.001

2017

• Azari, M.; Lübken, M.; Denecke, M. (2017) Simulation of simultaneous anammox and denitrification for kinetic and physiological characterization of microbial community in a granular biofilm system. Biochemical Engineering Journal. DOI:https://doi.org/10.1016/j.bej.2017.09.002.
• ​​Azari, M.; Denecke, M. (2017) Analysis of nitrous oxide production and system performance for a full-scale anammox plant combining activated sludge and granular activated carbon biofilm: a model-based study. Proceedings of the 15th International Conference on Environmental Science and Technology, At Rhodes, Greece. ISBN: 978-960-7475-53-4.
• Azari, M.; Le, A.V.; Denecke, M. (2017) Population Dynamic of Microbial Consortia in a Granular Activated Carbon-Assisted Biofilm Reactor: Lessons from Modelling. In Frontiers International Conference on Wastewater Treatment and Modelling (pp. 588-595). Ed. Mannina, G., part of Lecture Notes in Civil Engineering, Vol 4. Springer, Cham, Switzerland. DOI: 10.1007/978-3-319-58421-8.
• Azari, M.; Walter, U.; Rekers, V.; Denecke, M. (2017) More than a decade of landfill leachate treatment with a full-scale anammox plant combining activated sludge and activated carbon biofilm. Chemospere (2017). DOI: 10.1016/jchemosphere.2017.01.123.

2016

• Azari, M.; Walter, U.; Rekers, V.; Denecke, M. (2016) Ten-year experience with a full scale anammox plant combining activated sludge with activated carbon biofilm. The 9th Asia-Pacific Landfill Symposium in 2016 (APLAS2016). Hong Kong, China, accepted and to be printed in the conference proceeding.
• Azari, M.; Lübken, M.; Denecke, M. (2016) Multispecies granular biofilm modelling for simultaneous anammox and denitrification processes in batchsystems. In: Sauvage, S.; Sánchez-Pérez, J.M., Rizzoli, A.E. (Eds.), 2016). Proceedings of the 8th International Conference on Environmental Modelling and Software, Jul 10-14, Toulouse, France. ISBN: 978-88-9035-745-9.

2015

• Azari, M.; Lübken, M.; Denecke, M. (2015) Simulation of simultaneous anammox and denitrification, Deammonification 2015: State-of-the-art and future perspectives conference, Nov 13-14, Taoyuan, Taiwan, executive proceedings and book of abstracts, pp. 12,13. 
• Ke, Y.; Azari, M.; Han, P.; Görtz, I.; Ji-Dong Gu, J.-D.; Denecke, M.: Microbial community of nitrogen-converting bacteria in anammox granular sludge. International Biodeterioration & Biodegradation, Volume 103, September 2015, Pages 105-115.

2014

• Zarrineh, N., & Abad: M. A. N. 2014. Integrated water resources management in Iran: Environmental, socio-economic and political review of drought in Lake Urmia. Int J Water Resour, 6(1), 40-48.
• Azari, M., Zarrineh, N.,  Eshraghi, H.,: 2014.  Practices and methods for water and wastewater treatment in Iran, from ancient to contemporary times: consequences and remediation,  2014 IWA Regional Symposium on Water, Wastewater and Traditions, March 2014, (conference proceeding)
• Neyrisi, S, Mohammadian, S., Jooshesh, J, Azari, M, Zarineh, N: 2014. Evolution of Sanitation and Wastewater Technologies in Iran through the Centuries: Past and Present Chapter 7, (Book Reviewers), IWA Pubishment

2013

• Azari, M., Zarrineh N.: 2013. Implementation of Small Scale Solar Water Desalination Plant Using Membrane Technologies in Iranian Offshore Facilities, International Weebianr of Energy, Environment and Biodefence, December 2013, (Conference Proceeding)
• Azari, M., Tolessa, O., Bauwens, W.: 2013. Climate change impact studies on water quality ,  and   quantity of river Zenne in Belgium, 2nd Open symposium of water, VUB, Brussels, Belgium (September 2013), (conference proceeding)
• Zarrine, N., Azari M.E., Van Steenbergen, N.: 2013. “IWRM in Iran: Case Study in Lake Urmia”,    IWA  UK 14th Young Water Professional Conference, Darlington, UK (conference proceeding)

2012

• Azari M.E., Zarrineh N,: 2012. “Impact of industrial water recycling and reuse in Iranian national economy”    2nd Environmental Engineering Conference 2012. Tehran, Iran (conference proceeding)
• Azari M.E.: 2012. Official Overview of the membrane desalination development and status in Iran prior to 2012, opportunities and obstacles, Conference Proceeding, USB ISBN 978-608-4510-10-9, Balowis Conference, Ohrid, Maccedonia, (conference proceeding)