WUJin-xie,CHENWei-hang,ZHOUHai-shan,et al.Engineering Design of the First Semi-underground Sewage Treatment Plant in Hangzhou[J].China Water & Wastewater,2024,40(18):53-58.
Engineering Design of the First Semi-underground Sewage Treatment Plant in Hangzhou
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第18期
Page:
53-58
Column:
Date of publication:
2024-09-17
- Keywords:
- sewage treatment plant; semi-underground; ecological themed landscape park; nitrogen and phosphorus removal; denitrification deep bed filter
- Abstract:
- The Qige sewage treatment plant phase IV project in Hangzhou has a daily capacity of 30×104 m3/d. To address challenges such as the urban land scarcity and heightened environmental expectations from residents, the facility is designed as a double-storey semi-underground structure with a covered top storey featuring an ecological themed landscape park. The sewage treatment process includes an A+AAO biological tank, denitrification deep bed filter, ultraviolet disinfection, ensuring nitrogen and phosphorus removal. The treated effluent quality exceeds the grade A standard specified in the discharge regulations. The project offers several advantages including environmental friendliness, land intensification, resource utilization, and flexible process operation. It marks Hangzhou’s first semi-underground sewage treatment plant. Moreover, compared to the first three phases of the Qige sewage treatment plant aboveground, the area required per unit of treated sewage has been reduced by 31%.
Last Update:
2024-09-17