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Greenhouse Gas Mitigation through Advanced Nitrogen Removal Technology

Total Cost €


EC-Contrib. €






Project "GREENT" data sheet

The following table provides information about the project.


Organization address
postcode: 80539
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙500˙000 €
 EC max contribution 1˙500˙000 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2014-STG
 Funding Scheme ERC-STG
 Starting year 2015
 Duration (year-month-day) from 2015-09-01   to  2021-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

Human activities have severe impacts on the biological carbon and nitrogen cycles. The most important consequences of these are global warming and water pollution. Wastewater treatment technology, in particular nitrogen removal systems, improved considerably in the last decade. The application of anaerobic ammonium oxidizing (anammox) bacteria in oxygen-limited granules has the potential to turn wastewater treatment plants into energy-efficient systems with minimal greenhouse gas emissions of carbon dioxide, nitrous oxide and methane. Recently, microorganisms that couple the anaerobic oxidation of methane to denitrification were discovered. An innovative integration of these microorganisms into partial nitritation-anammox systems for wastewater treatment offers an elegant and efficient solution to combat greenhouse gas emissions from wastewater treatment plants. The aim of the GREENT project is to determine nitrous oxide emissions from partial nitritation-anammox bioreactors and the parameters that govern these emissions, and to investigate the responsible pathways in molecular detail. Furthermore, I will explore the feasibility of an innovative bioreactor, which will remove ammonium and methane simultaneously through anammox and anaerobic methane-oxidizing microorganisms. This approach will turn the otherwise harmful methane into a resource for efficient nitrogen removal. These fundamental insights and technological advances will be achieved by a complimentary array of state-of-the-art methodology such as continuous culturing, stable isotope tracing and a combination of -omics methods together with physiological experiments and detailed measurements at full-scale installations. The results of this proposal will be of paramount importance for the wastewater treatment sector, but also indispensable for mathematical modelling, life cycle assessment and understanding the ecophysiology of the involved microorganisms.


year authors and title journal last update
List of publications.
2016 Katharina F. Ettwig, Baoli Zhu, Daan Speth, Jan T. Keltjens, Mike S. M. Jetten, Boran Kartal
Archaea catalyze iron-dependent anaerobic oxidation of methane
published pages: 12792-12796, ISSN: 0027-8424, DOI: 10.1073/pnas.1609534113
Proceedings of the National Academy of Sciences 113/45 2020-01-21
2018 Maartje AHJ van Kessel, Karin Stultiens, Monique FW Slegers, Simon Guerrero Cruz, Mike SM Jetten, Boran Kartal, Huub JM Op den Camp
Current perspectives on the application of N-damo and anammox in wastewater treatment
published pages: 222-227, ISSN: 0958-1669, DOI: 10.1016/j.copbio.2018.01.031
Current Opinion in Biotechnology 50 2020-01-21
2018 Lavinia Gambelli, Simon Guerrero-Cruz, Rob J. Mesman, Geert Cremers, Mike S. M. Jetten, Huub J. M. Op den Camp, Boran Kartal, Claudia Lueke, Laura van Niftrik
Community Composition and Ultrastructure of a Nitrate-Dependent Anaerobic Methane-Oxidizing Enrichment Culture
published pages: e02186-17, ISSN: 0099-2240, DOI: 10.1128/AEM.02186-17
Applied and Environmental Microbiology 84/3 2020-01-21
2016 Naomi M. de Almeida, Hans J.C.T. Wessels, Rob M. de Graaf, Christina Ferousi, Mike S.M. Jetten, Jan T. Keltjens, Boran Kartal
Membrane-bound electron transport systems of an anammox bacterium: A complexome analysis
published pages: 1694-1704, ISSN: 0005-2728, DOI: 10.1016/j.bbabio.2016.07.006
Biochimica et Biophysica Acta (BBA) - Bioenergetics 1857/10 2020-01-21
2018 Marcel M. M. Kuypers, Hannah K. Marchant, Boran Kartal
The microbial nitrogen-cycling network
published pages: 263-276, ISSN: 1740-1526, DOI: 10.1038/nrmicro.2018.9
Nature Reviews Microbiology 16/5 2020-01-21
2017 Christina Ferousi, Simon Lindhoud, Frauke Baymann, Boran Kartal, Mike SM Jetten, Joachim Reimann
Iron assimilation and utilization in anaerobic ammonium oxidizing bacteria
published pages: 129-136, ISSN: 1367-5931, DOI: 10.1016/j.cbpa.2017.03.009
Current Opinion in Chemical Biology 37 2020-01-21
2016 Wouter J. Maalcke, Joachim Reimann, Simon de Vries, Julea N. Butt, Andreas Dietl, Nardy Kip, Ulrike Mersdorf, Thomas R. M. Barends, Mike S. M. Jetten, Jan T. Keltjens, Boran Kartal
Characterization of Anammox Hydrazine Dehydrogenase, a Key N 2 -producing Enzyme in the Global Nitrogen Cycle
published pages: 17077-17092, ISSN: 0021-9258, DOI: 10.1074/jbc.M116.735530
Journal of Biological Chemistry 291/33 2020-01-21
2016 Boran Kartal, Jan T. Keltjens
Anammox Biochemistry: a Tale of Heme c Proteins
published pages: 998-1011, ISSN: 0968-0004, DOI: 10.1016/j.tibs.2016.08.015
Trends in Biochemical Sciences 41/12 2020-01-21

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