ResearchResearch FieldsWastewater
Research Projects
The development of a deammonification treatment to remove nitrogen from recirculated water used in aquaculture (DeamRecirc)

Research Projects

The development of a deammonification treatment to remove nitrogen from recirculated water used in aquaculture (DeamRecirc)

Leaders:  Dr.-Ing. Maike Beier
Team:  Klaus Nelting, M.Sc., Dipl.-Ing. Yvonne Schneider
Year:  2011
Sponsors:  European Union
Lifespan:  01/2011 - 12/2012

 

Description

The DeammRecirc project is based on the recent experiences and success of using deammonification to convert ammonia to nitrogen gas in other waste water treatment applications. This method will be adapted for use in recirculation aquaculture systems (RAS) for fresh- and marine water species. 

By using a deammonification reactor within RAS, ammonia will be converted to nitrogen gas in one step. Deammonification bacteria enriched in granules will be adapted to RAS water qualities. The advances compared to current SoA include reduced oxygen use, reduced cost for buffering chemicals, lower carbon footprint, reduced levels of nitrate rich effluent released to the environment, reduced pumping cost and treatment need of new exchange water.

The project includes 11 participants, of which four are industrial SMEPs, which will produce, develop and distribute the DeammRecirc system post project, one is a large enterprise end user, one participant is from S. Africa who plans to transfer the technological development to the aquaculture industry to their continent and four are RTD participants, which will be responsible for the RTD work. 

Project partners:

  • Cyklar-Stulz GmbH (AUS)
  • Formoplast Kunststoffbehälterbau und – vertrieb GmbH (D)
  • ARAconsult GmbH (AUS)
  • Tecnologias y equipos para el medio ambiente S.L. (ESP)
  • Hardingsmolt AS (NO)
  • Angelsey Aquaculture Ltd. (UK)
  • Marine Finfish Farmers Association of South Africa (MFFASA) (S.A.)
  • Teknologisk Institutt AS (NO)
  • Aqua Consult Ingenieur GmbH (D)
  • Swansea University (UK)