Availability of Aluminum Phosphate Complexes to a Green Alga in Various Culture Media

摘要

The availability of phosphate contained in alum floe as a nutrient for algal growth was assessed in culture conditions that simulated natural waters receiving alum floe overflowing from tertiary wastewater treatment facilities.nPotassium salts of phosphate were flocculated with alum and compared in unialgal cultures of Selena strum capricornutum (Printz) with unflocculated potassium phosphate, a comrnerically available mixture of variscite and metavariseite (mineral aluminum phosphate) and "P-free" controls for support of algal biomass. Culture conditions controlled pH within the pH 7-8 range in some media and went higher in others.