公开(公告)号：US20170121197A1

公开(公告)日：2017-05-04

申请号：US15314275

申请日：2015-06-17

申请人： Novozymes A/S

发明人： Vaibhav TALE

IPC分类号： C02F3/30 ,  C02F3/34

CPC分类号： C02F3/308 ,  C02F3/34 ,  C02F2101/105 ,  C02F2101/30 ,  Y02W10/37

摘要： Methods and systems are provided for treating wastewater to reduce or remove phosphorus. Phosphorus accumulating organisms, and optionally, carbon source is added to the wastewater process stream to increase phosphorus removal. Treated wastewater is directed to an aerobic tank, which promotes phosphorus consumption by bacteria therein. The process stream can be directly dosed with exogenous phosphorus accumulating organisms in combination with carbon source, such as directly to an anaerobic tank, or indirectly through underflow or recycle from sludge dewatering. Compositions and augmented phosphorus accumulating organisms are also provided. Pre-treatment of phosphorus accumulating organisms with a carbon source is also described, as well as stable formulations.