Comparison of nutrient removal capacity and biomass settleability of four high-potential microalgal species

► Comparison of four algae for nutrient removal, biomass settleability and generation. ► Algal uptake was the main N and P removal mechanism for all the four algae. ► Three green algae species were suitable for water treatment and biomass production. ► Algal settleability should be concerned in the species selection of coupling system.