GULing-yan,HUANGWen-zhang,WANGWei-kang,et al.Comparison on the Simultaneous Biological Nitrogen and Phosphorus Removal Performance between Pilot-scale Plant with AOA Process and Full-scale Plant with Mult-stage AO Process[J].China Water & Wastewater,2024,40(7):1-5.
Comparison on the Simultaneous Biological Nitrogen and Phosphorus Removal Performance between Pilot-scale Plant with AOA Process and Full-scale Plant with Mult-stage AO Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第7期
Page:
1-5
Column:
Date of publication:
2024-04-01
- Keywords:
- AOA process; multi-stage AO process; ultimate denitrification; simultaneous biological nitrogen and phosphorus removal
- Abstract:
- A pilot system of anaerobic/oxic/anoxic (AOA) process with a treatment capacity of 100 m3/d was constructed and operated for 6 months in Futian Wastewater Treatment Plant (WWTP) in Shenzhen. The biological nitrogen and phosphorus removal efficiency was analyzed, and compared with the first phase project of the Futian WWTP that used multi-stage AO process. The effluent total nitrogen (TN) of pilot plant was as low as 2 mg/L, and nitrate (NO3--N) was almost completely removed. Comparatively, the NO3--N reached 6-8 mg/L, accounted for 80%-90% of the TN in effluent of the full-scale plant. Besides, the pilot plant achieved high biological phosphorus removal performance with the TP concentration less than 0.3 mg/L in the effluent, without any chemical agent and advanced treatment facility. With the same influent and temperature, higher TN and TP removal performance of the AOA process was achieved than the multi-stage AO process. This pilot plant provides data support for the engineering application of AOA process.
Last Update:
2024-04-01