XIE Xiao-wang.Application Comparison of Multi-stage AO and Oxidation Ditch Process in a WWTP Expansion Project[J].China Water & Wastewater,2020,36(14):127-130.
Application Comparison of Multi-stage AO and Oxidation Ditch Process in a WWTP Expansion Project
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
14
Page:
127-130
Column:
Date of publication:
2020-07-17
- Keywords:
- expansion project; multi-stage AO; high-density sedimentation tank; Carrousel oxidation ditch; denitrification
- Abstract:
- By comprehensive comparison and selection, the process of multi-stage anaerobic aerobic(AO)and high-density sedimentation tank is employed in a wastewater treatment plant with expansion capacity of 15 000 m3/d in Lu’an City, and the effluent quality is subject to the first level A criteria in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). The denitrification capability of multi-stage AO process is better than that of the oxidation ditch in the first-stage, and the effluent quality indexes can stably meet the design requirements. The main structures and design parameters are provided as reference for other similar WWTP upgrading and expansion projects.
Last Update:
2020-07-17