Research Status of Enhanced Process of Nitrogen and Phosphorus Removal by Membrane Bioreactor

Abstract

In view of the increasingly stringent sewage discharge standards, it is necessary to improve the nitrogen and phosphorus removal and the removal of refractory organic compounds in the sewage treatment process. Membrane bioreactor (MBR) as a wastewater treatment technology combined membrane bioreactor and biotechnology has a lower solid suspended solids concentration (SS) in effluent, but it is very difficult to remove nitrogen and phosphorus to meet the national emission standards. Therefore MBR intensified combination technology of nitrogen and phosphorus removal has become the main direction of our study and apply the technology to the actual sewage treatment plant. Based on the analysis of the existing MBR intensified combination technology of the removal of nitrogen and phosphorus, the principles, characteristics and treatment effects of various membrane intensified combinations technologies of the removal of nitrogen and phosphorus were introduced. It is believed that membrane fouling control, energy saving and consumption reduction are still the focus of future research through analysis.