title: Simultaneous treatment of food-waste recycling wastewater and cultivation of Tetraselmis suecica for biodiesel production.
abstract: There is an increasing interest in the use of cultivated microalgae to simultaneously produce biodiesel and remove nutrients from various wastewaters. For this purpose, Tetraselmis suecica was cultivated in flasks and fermenters using diluted food-waste recycling wastewater (FRW). The effect of FRW dilution on T. suecica growth and nutrient removal was initially tested in flasks. The maximal microalgal concentration after 14 days was in medium with a twofold dilution (28.3 × 10(6) cells/mL) and a fivefold dilution (25.5 × 10(6) cells/mL). When fivefold diluted medium was used in fermenters, the final dry cell weight of T. suecica was 2.0 g/L. The removal efficiencies of ammonium and phosphate in the fermenters were 99.0 and 52.3%, respectively. In comparison with the results of previous studies, the growth data of T. suecica in the FRW medium indicate that microalgal cultivation system incorporating removal of nutrients in FRW is feasible at the field level.
authors.affiliation: Department of Chemical and Biomolecular Engineering, KAIST, 291 Daehakno, Yuseong-Gu, Daejeon, 305-701, Republic of Korea.
authors.forename: Sung-Woon
authors.initials: SW
authors.lastname: Heo
authors.forename: Byung-Gon
authors.initials: BG
authors.lastname: Ryu
authors.forename: Kibok
authors.initials: K
authors.lastname: Nam
authors.forename: Woong
authors.initials: W
authors.lastname: Kim
authors.forename: Ji-Won
authors.initials: JW
authors.lastname: Yang
mesh_terms: D056804:Biofuels; D000460:Chlorophyta / Q000254:growth & development / Q000378:metabolism*; D005502:Food; D059027:Recycling; D062065:Wastewater
chemical_list: D056804:Biofuels; D062065:Wastewater