title: Novel bioconversions of municipal effluent and CO₂ into protein riched Chlorella vulgaris biomass.
abstract: Batch, modified semi-continuous and continuous cultivations of Chlorella vulgaris C9-JN 2010 cells in municipal effluent were performed and analyzed. The experiments were carried out in 7.5-L photo-bioreactors, to which 2% of CO2 was supplied. Biomass and specific growth rate of C. vulgaris were 0.528-0.760gl(-1) and 0.200-0.374d(-1), respectively. Meanwhile, it could efficiently remove ammonia-N, total nitrogen, total phosphorus, CODCr and BOD5 by around 98.0%, 90.9-93.6%, 89.9-91.8%, 60.7-90.0% and 83.4-88.4%, respectively. Algal protein content was 550±30.0mgg(-1) of the harvested biomass of C. vulgaris which was rich in eight kinds of essential amino acids (around 44.5% of the total). The processes of cultivation of C. vulgaris in municipal effluent could be proposed as dual-beneficial approaches, which could produce profitable byproducts and simultaneously reduce the contaminations to environment.
authors: The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, PR China.
authors: Changling
authors: C
authors: Li
authors: Hailin
authors: H
authors: Yang
authors: Yuji
authors: Y
authors: Li
authors: Luping
authors: L
authors: Cheng
authors: Meng
authors: M
authors: Zhang
authors: Ling
authors: L
authors: Zhang
authors: Wu
authors: W
authors: Wang
mesh_terms: D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D002245:Carbon Dioxide / Q000378:metabolism*; D048408:Chlorella vulgaris / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
chemical_list: D002245:Carbon Dioxide; D009584:Nitrogen