title: Scale-up potential of cultivating Chlorella zofingiensis in piggery wastewater for biodiesel production.
abstract: Scale-up potential of cultivating Chlorella zofingiensis in piggery wastewater for simultaneous wastewater treatment and biodiesel production was tested. The cultivation of C. zofingiensis with autoclaved wastewater and NaClO-pretreated wastewater, cultivation of algae indoors and outdoors, and stability of semi-continuous feeding operation were examined. The results showed that C. zofingiensis cultivated in piggery wastewater pretreated by autoclaving and NaClO had no evident difference in the performance of nutrient removal, algal growth and biodiesel production. The outdoor cultivation experiments indicated that C. zofingiensis was able to adapt and grow well outdoors. The semi-continuous feeding operation by replacing 50% of algae culture with fresh wastewater every 1.5 days could provide a stable net biomass productivity of 1.314 g L(-1) day(-1). These findings in this study can prove that it is greatly possible to amplify the cultivation of C. zofingiensis in piggery wastewater for nutrient removal and biodiesel production.
authors.affiliation: Guangzhou Institute of Energy Conversion, Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510640, China. yuanzh@ms.giec.ac.cn
authors.forename: Zhenhong
authors.initials: Z
authors.lastname: Yuan
authors.forename: Zhongming
authors.initials: Z
authors.lastname: Wang
authors.forename: Josu
authors.initials: J
authors.lastname: Takala
authors.forename: Erkki
authors.initials: E
authors.lastname: Hiltunen
authors.forename: Lei
authors.initials: L
authors.lastname: Qin
authors.forename: Zhongbin
authors.initials: Z
authors.lastname: Xu
authors.forename: Xiaoxi
authors.initials: X
authors.lastname: Qin
authors.forename: Liandong
authors.initials: L
authors.lastname: Zhu
mesh_terms: D000818:Animals; D056804:Biofuels; D018533:Biomass; D018929:Cell Culture Techniques; D002708:Chlorella / Q000254:growth & development / Q000502:physiology*; D050356:Lipid Metabolism; D013552:Swine; D062065:Wastewater / Q000737:chemistry*
chemical_list: D056804:Biofuels; D062065:Wastewater