title: Microalgal biomass production and on-site bioremediation of carbon dioxide, nitrogen oxide and sulfur dioxide from flue gas using Chlorella sp. cultures.
abstract: The growth and on-site bioremediation potential of an isolated thermal- and CO₂-tolerant mutant strain, Chlorella sp. MTF-7, were investigated. The Chlorella sp. MTF-7 cultures were directly aerated with the flue gas generated from coke oven of a steel plant. The biomass concentration, growth rate and lipid content of Chlorella sp. MTF-7 cultured in an outdoor 50-L photobioreactor for 6 days was 2.87 g L⁻¹ (with an initial culture biomass concentration of 0.75 g L⁻¹), 0.52 g L⁻¹ d⁻¹ and 25.2%, respectively. By the operation with intermittent flue gas aeration in a double-set photobioreactor system, average efficiency of CO₂ removal from the flue gas could reach to 60%, and NO and SO₂ removal efficiency was maintained at approximately 70% and 50%, respectively. Our results demonstrate that flue gas from coke oven could be directly introduced into Chlorella sp. MTF-7 cultures to potentially produce algal biomass and efficiently capture CO₂, NO and SO₂ from flue gas.
authors.affiliation: Department of Biological Science and Technology, National Chiao Tung University, Hsinchu, Taiwan.
authors.forename: Sheng-Yi
authors.initials: SY
authors.lastname: Chiu
authors.forename: Chien-Ya
authors.initials: CY
authors.lastname: Kao
authors.forename: Tzu-Ting
authors.initials: TT
authors.lastname: Huang
authors.forename: Chia-Jung
authors.initials: CJ
authors.lastname: Lin
authors.forename: Seow-Chin
authors.initials: SC
authors.lastname: Ong
authors.forename: Chun-Da
authors.initials: CD
authors.lastname: Chen
authors.forename: Jo-Shu
authors.initials: JS
authors.lastname: Chang
authors.forename: Chih-Sheng
authors.initials: CS
authors.lastname: Lin
mesh_terms: D000393:Air Pollutants / Q000378:metabolism*; D001673:Biodegradation, Environmental; D018533:Biomass; D002245:Carbon Dioxide / Q000378:metabolism; D002708:Chlorella / Q000254:growth & development* / Q000378:metabolism; D008669:Metallurgy; D058086:Microalgae / Q000254:growth & development* / Q000378:metabolism; D009589:Nitrogen Oxides / Q000378:metabolism; D013458:Sulfur Dioxide / Q000378:metabolism
chemical_list: D000393:Air Pollutants; D009589:Nitrogen Oxides; D013458:Sulfur Dioxide; D002245:Carbon Dioxide