DAIZhong-yi,XIEYi-jia,ZHANGGuo-qiang,et al.Application of BBR Technology with Bacillus as Dominant Bacteria in Municipal Wastewater Treatment[J].China Water & Wastewater,2023,39(18):67-70.
Application of BBR Technology with Bacillus as Dominant Bacteria in Municipal Wastewater Treatment
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第18期
Page:
67-70
Column:
Date of publication:
2023-09-17
- Keywords:
- Bacillus; BBR process; biofilm process; activated sludge process
- Abstract:
- The current scale of a wastewater treatment plant in central China is 3.5×104 m3/d, and the main treatment process is modified oxidation ditch. The original effluent quality was required to meet the first level B discharge standard, while the effluent quality of the upgrading and expansion project needs to meet the first level A discharge standard. Meanwhile, the scale of the expansion project is 3.5×104 m3/d, meaning that the total scale will reach 7×104 m3/d. To solve the problems such as poor nitrogen and phosphorus removal performance, high energy consumption and large footprint area of traditional oxidation ditch and AAO process, the core process of this upgrading and expansion project adopts BBR process with Bacillus as the dominant bacteria, which is a hybrid of biofilm method and activated sludge process. After the completion of the project, the system is stable and has good performance in pollutants removal and energy conservation, and all the water quality indicators of the effluent are better than the designed standard.
Last Update:
2023-09-17