Coagulation-membrane filtration of Chlorella vulgaris

► Chlorella vulgaris, a species with excellent potential for CO2 capture and lipid production, was cultivated. ► Coagulation tests using polyaluminum chloride (PACl) as coagulant were conducted. ► Filtration tests using hydrophilic polytetrafluoroethylene (PTFE) membrane were conducted. ► A feasible coagulation-filtration process to harvest C. vulgaris was proposed.