Method for oxygenization and pollutant absorption in aquatic systems, comprises cultivating micro algae in photo bioreactors, separating and concentrating the cells, immobilizing concentrate in polymer carriers, and collecting aggregates

摘要

The method for oxygenization and pollutant absorption in aquatic systems, comprises cultivating micro algae in photo bioreactors with high cell densities and high photosynthesis inhibition, separating and concentrating the cells, immobilizing the concentrate in polymer carriers, where aggregates are developed with defined geometrical structures, collecting the aggregates as high-activity bodies and then transferring into a reactor (1), illuminating the aggregates with optical elements within the range of photo-synthetically effective wavelengths and forming a fluidized bed by the aggregates. The method for oxygenization and pollutant absorption in aquatic systems, comprises cultivating micro algae in photo bioreactors with high cell densities and high photosynthesis inhibition, separating and concentrating the cells, immobilizing the concentrate in polymer carriers, where aggregates are developed with defined geometrical structures, collecting the aggregates as high-activity bodies and then transferring into a reactor (1), illuminating the aggregates in the reactor with optical elements within the range of photo-synthetically effective wavelengths and forming a fluidized bed by the aggregates in the reactor in such a manner that an optimal material exchange and a light supply are performed. The cell density has a value of 1x 10 6to 1x 10 1 2microorganism/ml. The cells are transferred with alginate solution, whose concentration is 1-50% and then dropped into a calcium chloride solution with a concentration of 0.01-1 M, where very stable alginate pellets develop with a diameter of 0.1-5 mm with enclosed micro alga cells. Bio-polymers are used as immobilization matrix. The immobilizate is conducted as hollow balls, in which the micro algae in a physiological solution are contained. Nutrients are brought into the immobilizate. LED's are intended with a wavelength of 400-700 nm for lighting the reactor. The turbulence of the biologically active immobilizate takes place by flow guidance of the water from the aquaculture (6) through a chamber inlet (5) into the reactor and a chamber outlet (7). The immobilizate forming the fluidized bed is formed itself in a reaction area in an optically transparent coarse meshed fabric packing (3). An independent claim is included for a device for oxygenization and pollutant absorption in aquatic systems.