title: Nutrient removal and lipid production by Coelastrella sp. in anaerobically and aerobically treated swine wastewater.
abstract: Coelastrella sp. QY01, a microalgae species isolated from a local pond, was identified and used for the treatment of anaerobically and aerobically treated swine wastewater (AnATSW). Microalgal growth characteristics, nutrient removal and lipid accumulation of QY01 cultivated in the initial concentration of AnATSW ranged from 63 to 319mg NH3-N/L were examined. The specific growth rate of QY01 cultivated in cultures ranged from 0.269 to 0.325day(-1) with a biomass productivity from 42.77 to 57.46mgL(-1)day(-1). Removal rates for NH3-N, TP and inorganic carbon in AnATSW at the various nutrient concentrations ranged from 90% to 100%, from 90% to 100% and from 74% to 78%, respectively. The lipid content of QY01 ranged from 22.4% to 24.8%. The lipid productivity was positive correlation with the biomass productivity. 40% AnATSW was optimal for QY01 cultivation, in which nutrient removal and productivity of biomass and lipid were maximized.
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
authors.forename: Le
authors.initials: L
authors.lastname: Luo
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
authors.forename: Huijun
authors.initials: H
authors.lastname: He
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China. Electronic address: yangc@hnu.edu.cn.
authors.forename: Chunping
authors.initials: C
authors.lastname: Yang
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
authors.forename: Shan
authors.initials: S
authors.lastname: Wen
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
authors.forename: Guangming
authors.initials: G
authors.lastname: Zeng
authors.affiliation: College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
authors.forename: Mengjie
authors.initials: M
authors.lastname: Wu
authors.affiliation: Hunan Hikee Environmental Technology Co., Ltd., Changsha 410001, PR China.
authors.forename: Zili
authors.initials: Z
authors.lastname: Zhou
authors.affiliation: Hunan Hikee Environmental Technology Co., Ltd., Changsha 410001, PR China.
authors.forename: Wei
authors.initials: W
authors.lastname: Lou
mesh_terms: D000332:Aerobiosis; D000693:Anaerobiosis; D000818:Animals; D018533:Biomass; D000460:Chlorophyta / Q000254:growth & development / Q000378:metabolism*; D004952:Esters / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008055:Lipids / Q000096:biosynthesis*; D058086:Microalgae / Q000254:growth & development / Q000378:metabolism*; D009584:Nitrogen / Q000302:isolation & purification*; D010758:Phosphorus / Q000302:isolation & purification*; D010802:Phylogeny; D013552:Swine; D062065:Wastewater / Q000382:microbiology*; D018508:Water Purification / Q000379:methods*
chemical_list: D004952:Esters; D005227:Fatty Acids; D008055:Lipids; D009584:Nitrogen; D010758:Phosphorus; D062065:Wastewater
keywords: Coelastrella sp.; Lipid production; Microalgae; Nutrient removal; Swine wastewater