Environmentally effective nitrogen removal in fish farming using sludge hydrolysis (wiN-wiN) (39119)

Project Details


Reducing nitrogen discharge is important to fish farms and their environmental performance. Removal of nitrogen can be done by applying denitrification filters end-of-pipe (i.e. before discharge) through an anearobic de-nitrification process using organic carbon as energy source.

Using external carbon is costly and introduces additional organic matter into the system. In contrast, sludge produced by the farmed fish might provide the organic matter given that a hydrolysis process can be controlled and optimised according to the needs of the denitrification process.

The project strives to establish, optimize and demonstrate an integrated system in commercial scale able to hydrolyse generated sludge and subsequently use it as energy source for nitrogen removal in end-of-pipe denitrification filters.

DTU Aqua, National Institute of Aquatic Resources
HME, Denmark (coordinator)
Lundby Dambrug, Denmark

This project is funded by the Danish Ministry of Food, Agriculture and Fisheries through the Green Development and Demonstration Program (GUDP) and the partners involved.

Research area: Aquaculture
Effective start/end date01/08/201331/12/2016


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