title: Effect of wastewater-borne bacteria on algal growth and nutrients removal in wastewater-based algae cultivation system.
abstract: Centrate, a type of nutrient-rich municipal wastewater was used to determine the effect of wastewater-borne bacteria on algal growth and nutrients removal efficiency in this study. The characteristics of algal and bacterial growth profiles, wastewater nutrient removal and effect of initial algal inoculums were systematically examined. The results showed that initial algal concentration had apparent effect on bacterial growth, and the presence of bacteria had a significant influence on algal growth pattern, suggesting symbiotic relationship between algae and bacteria at the initial stage of algae cultivation. The maximum algal biomass of 2.01 g/L with 0.1g/L initial algal inoculums concentration can be obtained during algae cultivation in raw centrate medium. The synergistic effect of centrate-borne bacteria and microalgae on algae growth and nutrient removal performance at initial fast growth stage has great potential to be applied to pilot-scale wastewater-based algae wastewater system cultivated in continuous or semi-continuous mode.
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA; Institute of Microbiology, Chinese Academy of Sciences, A3 Datun Rd., Chaoyang District, Beijing 100101, China.
authors: Xiaochen
authors: X
authors: Ma
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Wenguang
authors: W
authors: Zhou
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Zongqiang
authors: Z
authors: Fu
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Yanling
authors: Y
authors: Cheng
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Min
authors: M
authors: Min
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Yuhuan
authors: Y
authors: Liu
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Yunkai
authors: Y
authors: Zhang
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA.
authors: Paul
authors: P
authors: Chen
authors: Center for Biorefining, and Bioproducts and Biosystems Engineering Department, University of Minnesota, 1390 Eckles Avenue, St. Paul, MN 55108, USA. Electronic address: ruanx001@umn.edu.
authors: Roger
authors: R
authors: Ruan
mesh_terms: D001419:Bacteria / Q000254:growth & development / Q000378:metabolism*; D057919:Biological Oxygen Demand Analysis; D018929:Cell Culture Techniques / Q000379:methods*; D002708:Chlorella / Q000254:growth & development*; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000302:isolation & purification*; D010758:Phosphorus / Q000302:isolation & purification*; D062065:Wastewater / Q000382:microbiology*; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000302:isolation & purification
chemical_list: D009584:Nitrogen; D010758:Phosphorus; D062065:Wastewater; D014874:Water Pollutants, Chemical
keywords: Algal inoculum concentration; Algal–bacteria cultivation system; Bacterial growth; Municipal wastewater; Nutrient removal