YUJia-qing,WUDan-dan,WANGHai-feng,et al.Practice and Thinking on Upgrading of Hangzhou Chengxi WWTP[J].China Water & Wastewater,2022,38(16):89-95.
Practice and Thinking on Upgrading of Hangzhou Chengxi WWTP
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第16期
Page:
89-95
Column:
Date of publication:
2022-08-17
- Abstract:
- Hangzhou Chengxi wastewater treatment plant was reconstructed technically in accordance with the Discharge Standard of Major Water Pollutants for Municipal Wastewater Treatment Plant (DB 33/2169-2018) in Zhejiang Province. The original biological tank AAO treatment process in phase I is transformed into Bardenpho and MBBR process, and the advanced treatment facilities of low temperature belt drying sludge are added. After the transformation, the effluent can reach the design standard stably, and the water content of dried sludge can be reduced to about 30%. However, there are also some problems, such as the occasional blockage of MBBR filler, high odor concentration in drying workshop and difficulty to improve sludge production, which can provide reference for the upgrading and reconstruction of similar WWTPs.
Last Update:
2022-08-17