YANGJin-ming,LINChun-xiao,DONGJun,et al.Application of Multi-stage Flow-separated Technology in Sewage Treatment Station with High Discharge Standard[J].China Water & Wastewater,2024,40(2):65-69.
Application of Multi-stage Flow-separated Technology in Sewage Treatment Station with High Discharge Standard
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第40卷
Number:
第2期
Page:
65-69
Column:
Date of publication:
2024-01-17
- Keywords:
- flow-separated biochemical technology; high discharge standard; sewage treatment station; air floatation
- Abstract:
- The design scale of a sewage treatment station for river remediation in Kunming is 7 500 m3/d, and its combined treatment process consists of primary sedimentation tank, multi-stage flow-separated biochemical tank, inclined tube sedimentation tank, air floating tank and fiber rotary disk filter. After several years of operation, the effluent indicators of the sewage treatment station are better than the level B limits specified in Discharge Standard for Urban Sewage Treatment Plant (DB 5301/T 43-2020) issued by Kunming, and the operational cost is 1.63 yuan/m3. The application of the five-stage “aerobic-anoxic-aerobic-anoxic-aerobic” flow-separated biochemical technology demonstrates the advantages of small footprint area, short startup time, good treatment performance, low sludge yield and easy operation, which can be applied in small sewage treatment projects with high-discharge standard.
Last Update:
2024-01-17