Journal of Applied Phycology

, Volume 24, Issue 3, pp 449–458

Cultivation of Ulva lactuca with manure for simultaneous bioremediation and biomass production

Authors

    • Department of BioscienceAarhus University
  • Annette Bruhn
    • Department of BioscienceAarhus University
  • Michael Bo Rasmussen
    • Department of BioscienceAarhus University
  • Birgit Olesen
    • Department of BioscienceAarhus University
  • Martin M. Larsen
    • Department of BioscienceAarhus University
  • Henrik B. Møller
    • Department of EngineeringAarhus University
Article

DOI: 10.1007/s10811-011-9767-z

Cite this article as:
Nielsen, M.M., Bruhn, A., Rasmussen, M.B. et al. J Appl Phycol (2012) 24: 449. doi:10.1007/s10811-011-9767-z

Abstract

The potential of liquid manure as sole nutrient source for cultivation of Ulva lactuca was investigated with the perspective of utilizing the produced biomass for feed and/or energy. Algae grown with manure demonstrated equal growth rates to algae grown with standard f/2-medium. The optimum manure concentration, expressed as ammonium concentration, was 25 μM. At these conditions, the biomass produced was potentially suitable for anaerobic digestion, due to a relative high carbon/nitrogen ratio (approximately 19). At higher manure concentrations, tissue concentrations of nitrogen, phosphorus, proteins, and amino acids increased, making the biomass less suitable for anaerobic digestion but potentially interesting as a feed supplement. Cultivating U. lactuca with manure as nutrient source has potential in terms of bioremediation as well as production of bioenergy and protein-feed.

Keywords

Chlorophyta Amino acid composition Bioenergy Feed potential Heavy metals Macroalgae Nitrogen

Copyright information

© Springer Science+Business Media B.V. 2011