ZHAOJun-na,WANGJian-wei,MA Jing-chun,et al.Research on Precise Dosing System for Chemical Phosphorus Removal and Its Application in a WWTP[J].China Water & Wastewater,2024,40(12):110-113.
Research on Precise Dosing System for Chemical Phosphorus Removal and Its Application in a WWTP
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第12期
Page:
110-113
Column:
Date of publication:
2024-06-17
- Keywords:
- WWTP; chemical phosphorus removal; precise dosing; energy saving and consumption reduction
- Abstract:
- Taking a wastewater treatment plant (WWTP) in Cangzhou City as an example, a precise dosing system for chemical phosphorus removal based on orthophosphate online analyzer was designed and developed. The system can be set to open loop and closed loop operation mode, and the closed loop mode adopted the feedforward and feedback control strategy. The application effect of the system in the WWTP shows that the system realized the fine control of phosphorus removal process and chemicals, phosphorus removal efficiency was significantly improved, and the operation cost was greatly reduced. When the total influent phosphorus was increased by 31.3%, the amount of phosphorus removal chemicals was reduced by 35.2%, and the construction cost of the system could be recovered within one year, with remarkable economic benefits to ensure the stable up-to-standard of TP.
Last Update:
2024-06-17