HUANGXing.Design and Operation of Wuhan Hanxi WWTP Upgrading Project[J].China Water & Wastewater,2024,40(20):53-58.
Design and Operation of Wuhan Hanxi WWTP Upgrading Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第20期
Page:
53-58
Column:
Date of publication:
2024-10-17
- Keywords:
- wastewater treatment plant; advanced treatment; flocculation; sedimentation and filtration; water inlet connection; tail water self-draining
- Abstract:
- Wuhan Hanxi wastewater treatment plant (WWTP), with treatment capacity of 60×104 m3/d, previously should comply with the first level B criteria of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002). The tail water was discharged into the Yangtze River through Lijiadun open channel and the Fu River. In order to upgrade the effluent to the first level A criteria, the advanced treatment process of flocculation, sedimentation and filtration is adopted based on full use of the existing secondary biological treatment system. The intensive layout of advanced treatment structures effectively solves the problem of land shortage. By the fine design of water inlet connection and innovation, the sewage treatment system operates normally except the inlet connection of advanced treatment process in the whole construction process of the project. The tail water of advanced treatment can realize self-draining in most time, and only has to be discharged by pump in the summer flooding season due to the safety measures taken for tail water discharge to prevent flooding, which greatly saves energy and operation cost. After operation, the actual treatment capacity of the whole plant is about （63-65）×104 m3/d, and the overload operation is about 6%. In addition, all the effluent indicators are superior to the first level A criteria.
Last Update:
2024-10-17