title: Culture modes and financial evaluation of two oleaginous microalgae for biodiesel production in desert area with open raceway pond.
abstract: Cultivation modes of autotrophic microalgae for biodiesel production utilizing open raceway pond were analyzed in this study. Five before screened good microalgae were tested their lipid productivity and biodiesel quality again in outdoor 1000L ORP. Then, Chlorella sp. L1 and Monoraphidium dybowskii Y2 were selected due to their stronger environmental adaptability, higher lipid productivity and better biodiesel properties. Further scale up cultivation for two species with batch and semi-continuous culture was conducted. In 40,000L ORP, higher lipid productivity (5.15 versus 4.06gm(-2)d(-1) for Chlorella sp. L1, 5.35 versus 3.00gm(-2)d(-1) for M. dybowskii Y2) was achieved in semi-continuous mode. Moreover, the financial costs of 14.18$gal(-1) and 13.31$gal(-1) for crude biodiesel in two microalgae with semi-continuous mode were more economically feasible for commercial production on large scale outdoors.
authors.affiliation: Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
authors.forename: Qiaoning
authors.initials: Q
authors.lastname: He
authors.affiliation: Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
authors.forename: Haijian
authors.initials: H
authors.lastname: Yang
authors.affiliation: Key Laboratory of Algal Biology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China. Electronic address: cxhu@ihb.ac.cn.
authors.forename: Chunxiang
authors.initials: C
authors.lastname: Hu
mesh_terms: D017756:Aquaculture / Q000191:economics* / Q000379:methods*; D052818:Autotrophic Processes; D056804:Biofuels / Q000032:analysis / Q000191:economics; D018533:Biomass; D002708:Chlorella; D003889:Desert Climate; D005240:Feasibility Studies; D005742:Gasoline; D008055:Lipids / Q000096:biosynthesis; D058086:Microalgae / Q000254:growth & development* / Q000378:metabolism*; D061005:Ponds
chemical_list: D056804:Biofuels; D005742:Gasoline; D008055:Lipids
keywords: Batch culture; Financial analysis; Microalgae selection; Open raceway pond; Semi-continuous culture