CHANGYao-feng,XIEJia-wei,XIEJun-xiang,et al.Research Progress on Upgrading and Reconstruction Technology of Urban Sewage Treatment Plants[J].China Water & Wastewater,2022,38(6):20-28.
Research Progress on Upgrading and Reconstruction Technology of Urban Sewage Treatment Plants
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第6期
Page:
20-28
Column:
Date of publication:
2022-03-17
- Keywords:
- urban sewage treatment plants; upgrading and reconstruction; process optimization; advanced treatment
- Abstract:
- It has become a national and local trend to formulate strict discharge standards. Accordingly, it is extremely urgent to upgrade and reconstruct the urban domestic sewage treatment plants in China. The aims of this work included reducing the requirement of carbon source and enlarging the sources of carbon by pretreatment, strengthening nitrogen and phosphorus removal by secondary treatment, and reaching the standard of nitrogen and phosphorus by advanced treatment. From the aspects of pretreatment, secondary treatment and advanced treatment, we summarized and analyzed the core technology principles and practical outcomes on the upgrading of carbon, nitrogen and phosphorus removal. It is preferred to optimize the main process and advanced treatment, which could ensure the stability of urban sewage to meet the discharge standards. We further proposed an optimal route, which is suitable for the upgrading and reconstruction of urban domestic sewage treatment plants in China.
Last Update:
2022-03-17