Production of marine biomass

The primary research themes within marine biomasses are:

  1. cultivation and harvest of macro algae (innovative cultivation technology, life cycle control, improvement, optimizing biomass yield and quality, nutrient absorption); and
  2. environment and climate impact of marine biomass production (macro algae and mussels) (life cycle analyses, organic modelling, marine area management). Focus will be on examination and mapping of production potentials and environmental impact of large-scale cultivation in sea areas with different oceanography types and nutrient loads, including biodiversity and area efficiency in relation to the recovery of nutrients discharged from agricultural and marine farming (marine measures).

Participating science teams and individual scientists

Specific facilities connected with production of marin biomass

Land-based plant for macro algae cultivation

Within the framework of AlgeCenter Danmark (Algae Centre Denmark), a land-based plant for macro algae production was established in 2010. The plant is located at Grenå harbour and receives freshly filtered seawater via the water inlet and filter system of the Kattegatcenter. The plant consists of 12 tanks – 2 m2 each – mounted in two independent rows of each 6 interconnected tanks. Temperature and oxygen concentration are monitored in each tank, whereas pH, CO2 and salinity are monitored in each row. The plant is capable of working with a steady throughflow of water and water recirculation.

The plant provides the opportunity of testing different species and organic types of macro algae in relation to:

  • Efficient utilization of radiation and nutrition, including nutrition from waste water streams (e.g. agriculture, wastewater treatment plants)
  • Yield and quality for bio refining 

Off-shore plant for macro algae cultivation (20 ha)

Located in Kattegat close to Grenå, the plant constitutes the basis for research and development – at an industrial scale – within cost efficiency and environmental impact of macro algae production. Work and research efforts are carried out in cooperation with the authorities (e.g. the Danish Coastal Authority, the Central Denmark Region and local municipalities) and the industry.

Efforts include:

  • Cultivation and harvest technologies
  • Optimization of biomass yield and quality (selective cultivation, bio refining)
  • Impact of macro algae cultivation on the surrounding environment (climate, biodiversity, eutrophication)
  • Optimized transport, storage/pre-treatment and logistics from sea to bio refinery