title: Growing Chlorella sp. on meat processing wastewater for nutrient removal and biomass production.
abstract: In this work, Chlorella sp. (UM6151) was selected to treat meat processing wastewater for nutrient removal and biomass production. To balance the nutrient profile and improve biomass yield at low cost, an innovative algae cultivation model based on wastewater mixing was developed. The result showed that biomass yield (0.675-1.538 g/L) of algae grown on mixed wastewater was much higher than that on individual wastewater and artificial medium. Wastewater mixing eased the bottleneck for algae growth and contributed to the improved biomass yield. Furthermore, in mixed wastewater with sufficient nitrogen, ammonia nitrogen removal efficiencies (68.75-90.38%) and total nitrogen removal efficiencies (30.06-50.94%) were improved. Wastewater mixing also promoted the synthesis of protein in algal cells. Protein content of algae growing on mixed wastewater reached 60.87-68.65%, which is much higher than that of traditional protein source. Algae cultivation model based on wastewater mixing is an efficient and economical way to improve biomass yield.
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Qian
authors.initials: Q
authors.lastname: Lu
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Wenguang
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Min
authors.initials: M
authors.lastname: Min
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Xiaochen
authors.initials: X
authors.lastname: Ma
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Ceria
authors.initials: C
authors.lastname: Chandra
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; School of Environmental Science and Technology, Hanoi University of Science and Technology, Viet Nam.
authors.forename: Yen T T
authors.initials: YT
authors.lastname: Doan
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Yiwei
authors.initials: Y
authors.lastname: Ma
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; MOE Biomass Energy Research Center and State Key Laboratory of Food Science, Nanchang University, Nanchang, Jiangxi, People's Republic of China.
authors.forename: Hongli
authors.initials: H
authors.lastname: Zheng
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Sibo
authors.initials: S
authors.lastname: Cheng
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Richard
authors.initials: R
authors.lastname: Griffith
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA.
authors.forename: Paul
authors.initials: P
authors.lastname: Chen
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN, USA.
authors.forename: Chi
authors.initials: C
authors.lastname: Chen
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; Department of Animal Science, University of Minnesota, St. Paul, MN, USA.
authors.forename: Pedro E
authors.initials: PE
authors.lastname: Urriola
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; Department of Animal Science, University of Minnesota, St. Paul, MN, USA.
authors.forename: Gerald C
authors.initials: GC
authors.lastname: Shurson
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; Norwegian University of Life Sciences, Norway.
authors.forename: Hans R
authors.initials: HR
authors.lastname: Gislerød
authors.affiliation: Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, St. Paul, MN, USA; MOE Biomass Energy Research Center and State Key Laboratory of Food Science, Nanchang University, Nanchang, Jiangxi, People's Republic of China. Electronic address: ruanx001@umn.edu.
authors.forename: Roger
authors.initials: R
authors.lastname: Ruan
mesh_terms: D018533:Biomass; D002708:Chlorella / Q000254:growth & development* / Q000378:metabolism; D008460:Meat / Q000382:microbiology*; D009584:Nitrogen / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*; D062065:Wastewater / Q000382:microbiology*
chemical_list: D009584:Nitrogen; D062065:Wastewater
keywords: Algae cultivation; Biomass; Nutrient removal; Protein; Wastewater