Eutrophic compounds remival by microalgae from wastewater

초록

Microalgae could successfully remove nitrogen sources from wastewater, as far as the mass transfer of CO2 was not limited. Nitrate could be successfully reduced below 2 mg NO3--N/mL from initial nitrate concentration of 140 mg NO3--N/mL in 10 days even in the wastewater with no organic carbon source. Similar results were obtained when ammonium was used as a sole nitrogen source instead of nitrate. Higher concentrations of nitrogen of 140, 280, 560 and 1400 mg/mL were also tested and similar amount of nitrogen could be removed by algal cultures without showing substrate inhibition.