title: Intensified production of microalgae and removal of nutrient using a microalgae membrane bioreactor (MMBR).
abstract: In present research, a microalgae membrane bioreactor (MMBR) was constructed by combining the optical panel photobioreactor (OPPBR) and membrane bioreactor (MBR). Experiments were conducted in MMBR pilot-plant configuration for 150 days. A biomass productivity of 2.53 g/l/day with light transmittance of 94 % at a 300-mm depth in the OPPBR was achieved. The total reduction of chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in the MMBR were found to be 96.99 and 97.09 %, respectively. Additionally, the removal of total nitrogen (TN), NH4-N, NO3-N, total phosphorus (TP), and PO4-P were 96.38, 99.80, 97.62, 92.75, and 90.84 % in MMBR, respectively. These results indicated that the MMBR process was highly effective for COD, BOD, and nutrient removal when compared to the OPPBR or MBR process.
authors.affiliation: Department of Environmental Engineering, Catholic Kwandong University, Gangneung, 210-701, South Korea, hjchoi@cku.ac.kr.
authors.forename: HeeJeong
authors.initials: H
authors.lastname: Choi
mesh_terms: D057919:Biological Oxygen Demand Analysis; D018533:Biomass; D008027:Light; D008567:Membranes, Artificial; D058086:Microalgae / Q000254:growth & development / Q000378:metabolism* / Q000528:radiation effects; D009584:Nitrogen / Q000378:metabolism*; D010758:Phosphorus / Q000378:metabolism*; D058433:Photobioreactors; D062065:Wastewater / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
chemical_list: D008567:Membranes, Artificial; D009584:Nitrogen; D010758:Phosphorus; D062065:Wastewater