多级厌氧缺氧好氧活性污泥法新工艺研究

STUDY ON THE MULTILEVEL ANAEROBIC/ANOXIC/OXIC ACTIVATED SLUDGE PROCESS

多级厌氧缺氧好氧活性污泥法是由若干个厌氧缺氧好氧串联的形式组成,利用分段厌氧进水,形成多级厌氧-缺氧和多级缺氧-好氧同时交替运行,具有反硝化除磷和高效脱氮功能,采用无内回流技术,通过调节流量比值实现强化除磷与强化脱氮的控制目标,并具有污泥浓度高、抗冲击能力强、污泥减量、优化利用碳源、节省运行能耗和曝气量等特点,是节能型高效除磷脱氮新工艺,为城市污水高效除磷脱氮提供新的思路及途径。

Multilevel anaerobic/anoxic/oxic activated sludge process is composed of multistage anaerobic,anoxic,oxic zone in series,which has high efficient nitrogen removal and denitrifying phosphorus removal function by using multistage anaerobic inflow and the alternate operation mode of multilevel anaerobic/anoxic and multilevel anoxic/oxic without inner recycling,the control target of enhancing phosphorus and nitrogen removal can be achieved by adjusting the flow ratio,which features high sludge concentration,sludge reduction,saving carbon source,aeration and operation energy consumption etc,it is a new energy-saving and efficient nitrogen and phosphorus removal process,which provides a new thought and way for the efficient nitrogen and phosphorous removal from municipal wastewater.