Anaerobic process was adopted in the biological process, and the phosphorus removal rate (PRR) could be over 63%. Compared with the process without an anaerobic one, 32% of improvement of PRR could be gained.

• 在生物除磷流程中 ,设置厌氧段 ,除磷率可达 63%25以上 ,与不设厌氧段相比 ,提高了 3 2%25 ;