@article{(Open Science Index):https://publications.waset.org/pdf/9998556, title = {Nutrients Removal Control via an Intermittently Aerated Membrane Bioreactor}, author = {Junior B. N. Adohinzin and Ling Xu}, country = {}, institution = {}, abstract = {Nitrogen is among the main nutrients encouraging the growth of organic matter and algae which cause eutrophication in water bodies. Therefore, its removal from wastewater has become a worldwide emerging concern. In this research, an innovative Membrane Bioreactor (MBR) system named “moving bed membrane bioreactor (MBMBR)” was developed and investigated under intermittently-aerated mode for simultaneous removal of organic carbon and nitrogen. Results indicated that the variation of the intermittently aerated duration did not have an apparent impact on COD and NH4+–N removal rate, yielding the effluent with average COD and NH4+–N removal efficiency of more than 92 and 91% respectively. However, in the intermittently aerated cycle of (continuously aeration/0s mix), (aeration 90s/mix 90s) and (aeration 90s/mix 180s); the average TN removal efficiency was 67.6%, 69.5% and 87.8% respectively. At the same time, their nitrite accumulation rate was 4.5%, 49.1% and 79.4% respectively. These results indicate that the intermittently aerated mode is an efficient way to controlling the nitrification to stop at nitrition; and also the length of anoxic duration is a key factor in improving TN removal. }, journal = {International Journal of Environmental and Ecological Engineering}, volume = {8}, number = {6}, year = {2014}, pages = {556 - 559}, ee = {https://publications.waset.org/pdf/9998556}, url = {https://publications.waset.org/vol/90}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 90, 2014}, }