title: Simultaneous microalgal biomass production and CO2fixation by cultivating Chlorella sp. GD with aquaculture wastewater and boiler flue gas.
abstract: A microalgal strain, Chlorella sp. GD, cultivated in aquaculture wastewater (AW) aerated with boiler flue gas, was investigated. When AW from a grouper fish farm was supplemented with additional nutrients, the microalgal biomass productivity after 7days of culture was 0.794gL-1d-1. CO2fixation efficiencies of the microalgal strains aerated with 0.05, 0.1, 0.2, and 0.3vvm of boiler flue gas (containing approximately 8% CO2) were 53, 51, 38, and 30%, respectively. When the microalgal strain was cultured with boiler flue gas in nutrient-added AW, biomass productivity increased to 0.892gL-1d-1. In semi-continuous cultures, average biomass productivities of the microalgal strain in 2-day, 3-day, and 4-day replacement cultures were 1.296, 0.985, and 0.944gL-1d-1, respectively. These results demonstrate the potential of using Chlorella sp. GD cultivations in AW aerated with boiler flue gas for reusing water resources, reducing CO2emission, and producing microalgal biomass.
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
authors.forename: Chiu-Mei
authors.initials: CM
authors.lastname: Kuo
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
authors.forename: Jhong-Fu
authors.initials: JF
authors.lastname: Jian
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
authors.forename: Tsung-Hsien
authors.initials: TH
authors.lastname: Lin
authors.affiliation: Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan.
authors.forename: Yu-Bin
authors.initials: YB
authors.lastname: Chang
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
authors.forename: Xin-Hua
authors.initials: XH
authors.lastname: Wan
authors.affiliation: Bioresource Collection and Research Center, Food Industry Research and Development Institute, Hsinchu, Taiwan.
authors.forename: Jinn-Tsyy
authors.initials: JT
authors.lastname: Lai
authors.affiliation: Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Research Center for Energy Technology and Strategy, National Cheng Kung University, Tainan, Taiwan.
authors.forename: Jo-Shu
authors.initials: JS
authors.lastname: Chang
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan. Electronic address: lincs@mail.nctu.edu.tw.
authors.forename: Chih-Sheng
authors.initials: CS
authors.lastname: Lin
mesh_terms: D017756:Aquaculture / Q000379:methods*; D018533:Biomass; D002245:Carbon Dioxide / Q000378:metabolism*; D002708:Chlorella / Q000254:growth & development / Q000378:metabolism*; D058086:Microalgae / Q000254:growth & development / Q000378:metabolism*; D014865:Waste Disposal, Fluid / Q000379:methods; D062065:Wastewater
chemical_list: D002245:Carbon Dioxide; D062065:Wastewater
keywords: Aquaculture wastewater; Biomass productivity; Boiler flue gas; CO(2) fixation; Chlorella