title: Cultivation of Chlorella protothecoides in anaerobically treated brewery wastewater for cost-effective biodiesel production.
abstract: The use of wastewater has been investigated to overcome the economic challenge involved with a production of microalgae-based biodiesel. In this study, to achieve economical biodiesel production along with effective wastewater treatment at the same time, anaerobically treated brewery wastewater (ABWW) was utilized as a low-cost nutrient source, in the cultivation of Chlorella protothecoides. About 96 and 90 % of total nitrogen and phosphorus in ABWW were removed, respectively, while C. protothecoides was accumulating 1.88 g L(-1) of biomass. The C. protothecoides grown in ABWW showed increases in cell size and cell aggregation, resulting in a near 80 % enhanced harvesting efficiency within 20 min, as compared with only 4 % in BG-11. In addition, the total fatty acid content of the C. protothecoides grown in ABWW increased by 1.84-fold (35.94 ± 1.54 % of its dry cell weight), relative to that of BG-11.
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehakno, Yuseong-gu, Daejeon, 305-701, Republic of Korea.
authors.forename: Cornelius
authors.initials: C
authors.lastname: Darpito
authors.forename: Won-Sub
authors.initials: WS
authors.lastname: Shin
authors.forename: Seungjib
authors.initials: S
authors.lastname: Jeon
authors.forename: Hansol
authors.initials: H
authors.lastname: Lee
authors.forename: Kibok
authors.initials: K
authors.lastname: Nam
authors.forename: Jong-Hee
authors.initials: JH
authors.lastname: Kwon
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Yang
mesh_terms: D056804:Biofuels; D002708:Chlorella / Q000254:growth & development*; D019649:Food Industry; D062065:Wastewater; D018508:Water Purification / Q000379:methods*
chemical_list: D056804:Biofuels; D062065:Wastewater