Cultivation of Arthrospira (Spirulina) platensis in olive-oil mill wastewater treated with sodium hypochlorite

► Olive-oil mill wastewater treatment with NaOCl and Ca(OCl)2 was studied. ► NaOCl had a stronger effect on the OMWW phenol and turbidity than Ca(OCl)2. ► The treated OMWW was used as a cultivation medium for A. platensis. ► N addition in the medium enhanced the growth of A. platensis, while C addition did not. ► After the treatment and cultivation the removal of certain pollutants was measured.