Czech Republic. Microalga grew in the Schl¨osser liquid
medium [22], composition of which is presented in Table 1.
Schl¨osser culture medium was prepared with analytical
grade reagents and purchased from POCh S.A. (Gliwice,
Poland). After cultivation, the biomass was separated by
filtration, using the aquarium algae vacuum cleaner (Actizoo
Zolux, France), dried at 60∘C (laboratory oven, WAMED;
Warsaw, Poland) for three days, and subjected to further
investigation as a biosorbent.