| 摘要 |
2117084 9304990 PCTABS00020 The present invention relates to a system and method for biologically removing nitrogen from wastewater. Both the system and method entail forming a mixed liquor and transferring the mixed liquor to a series of nitrogen removal stages. Each nitrogen removal stage includes both anoxic and aerobic treatment zones. Mixed liquor is recycled back and forth between the anoxic and aerobic treatment zone of each stage. Because of this basic flow scheme, the process gives rise to a high reactor rate and highly efficient nitrogen removal process.
|
