Intensified Production of Microalgae and Removal of Nutrient Using a Microalgae Membrane Bioreactor (MMBR)
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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.
KeywordsMicroalgae Microalgae membrane bioreactor (MMBR) Nutrient removal Optical panel photobioreactor (OPPBR) Wastewater treatment
This work is supported by the basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2013006899).
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