ZHAOXu-yong,DENGLi-zhi,XUXin,et al.Research and Demonstration of BBR Process for Upgrading and Renovation of Quasi?Ⅳ Standard in Sewage Treatment Plant[J].China Water & Wastewater,2023,39(10):115-120.
Research and Demonstration of BBR Process for Upgrading and Renovation of Quasi?Ⅳ Standard in Sewage Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第10期
Page:
115-120
Column:
Date of publication:
2023-05-17
- Keywords:
- sewage treatment plant; upgrading and renovation; botany bio-reactor(BBR); improving quality and efficiency
- Abstract:
- After the transformation and upgrading of the sewage treatment facilities of a sewage treatment plant in Nanchang, the pollutant discharge was raised from the first level B standard in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002) to the quasi-Ⅳ standard of the Environmental Quality Standards for Surface Water (GB 3838-2002), and the TN and SS reached the first level A standard of GB 18918-2002. In this project, the secondary biochemical treatment process of A/A/O micro-aeration oxidation ditch of sewage treatment plant is upgraded and transformed into BBR process with “plant-sludge-membrane” as the core, after about 7 months(including winter) normal operation data showed that, its effluent quality meet the design standards, stable operation, and strong impact load capacity(water quality, water quantity, temperature). The daily average concentrations of NH3-N, COD, BOD5, and TP reached 0.38 mg/L, 11.46 mg/L, 4.49 mg/L, and 0.09 mg/L, respectively, better than the surface water class Ⅳ standard. And the effluent concentrations of TN and SS were 6.16 mg/L and 2.38 mg/L, respectively, which were stable below 10 mg/L. At the same time, the treatment cost was 0.6 yuan/m3, which saves about 20% of the cost compared with the previous.
Last Update:
2023-05-17