Environmental neutral aquaculture water treatment (MIVANAK) (39295)

Despite a transition from flow-through systems to more advanced open water reuse aquaculture systems (e.g. model trout farms), the need for water treatment still exists. In brackish and saltwater reuse systems, blooms of toxic microalgae in an example of a recently new challenge.

The purpose of this project is to further develop current aquaculture water treatment practice and reduce the total amount of disinfectants used.

The project includes 3 different work packages, investigating
- ecological consequences of continuous application of peroxyacetid acid.
- toxicological effects of easy degradable disinfectants.
- alternative biological methods to control / avoid blooms of toxic heterotrophic dinoflaggelates.

Trials will include mesocomsos experiments where disinfectants are added continuously or by daily pulses over a prolonged period of time where phyto- and zoo-plankton abundance and compositions will be investigated. Other trials will be made in batch experiments with pure algae cultures, as will prolonged continuous peroxyacid application experiments be made.

Partners
DTU Aqua, National Institute of Aquatic Resources (coordinator)

Funding
This project is funded by the Environmental Protection Agency's Programme for Pesticide Research.

Research area: Aquaculture
Research area: Marine Populations and Ecosystem Dynamics