Conclusions and future directions
The microalga C. vulgaris, grown on the WE showed Cmax
(270,009 cells ml1), lmax (0.53 d1) in the smaller wastewater
concentration added to the cultivation medium (5.0 and
8.5%), while larger COD removals (69.25 and 69.90%) and
the largest colour removals (75.68%) were obtained using the
moderate waste water concentration in the cultivation medium.
Thus the cultivation of C. vulgaris in WE demonstrated the
capability of biomass production, colour and COD removal;
therefore this microalga can be an alternative to assist in the
textile culture effluent treatment, reducing the environmental
impact caused by their pollutants. The algal biomass
generated may be useful as feedstock, fertilizers or for biofuel
production.