Particular internal recirculation frequency scope for enhancing denitrifying phosphorus removal in an oxidation ditch

Shao Po Wang1, Jing Jie Yu1, Fan Kai Su2

  • 1Tianjin Key Laboratory of Aquatic Science and Technology, Tianjin Chengjian University, Tianjin 300384, China; School of Environmental & Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China; and Municipal Experimental Teaching Demonstration Center of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, China E-mail: yjj.mary@yahoo.com; yjj.mary@163.com.

Summary

Optimizing internal recirculation frequency (IRF) in oxidation ditch (OD) systems enhances denitrifying phosphorus removal (DNPR). Proper IRF control is key for efficient simultaneous nitrogen and phosphorus removal in wastewater treatment.

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