LIU Ying.Applications of MBBR, Double Packing Media Filter and MBR in Multi-phase Synchronous Expansion and Upgrading of Sewage Treatment Plant[J].China Water & Wastewater,2021,37(18 18):63-69.
Applications of MBBR, Double Packing Media Filter and MBR in Multi-phase Synchronous Expansion and Upgrading of Sewage Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
18 18
Page:
63-69
Column:
Date of publication:
2021-09-17
- Keywords:
- expansion and upgrading; double packing media filter; MBBR; MBR
- Abstract:
- The current effluent discharge standard of a sewage treatment plant in Changsha is the first level A discharge standard, and the total scale will reach 45×104 m3/d after the expansion and upgrading. The phase Ⅰ project is expanded from the current scale of 20×104 m3/d to 25×104 m3/d, and those of the phases Ⅱ and Ⅲ are 10×104 m3/d and 10×104 m3/d, respectively. The effluent quality needs to meet the first level criteria specified in Discharge Standard of Major Pollutants for Municipal Wastewater Treatment Plant (DB 43/T 1546-2018) after the expansion and upgrading. The current MSBR tank of phase Ⅰ was transformed into AAO-MBBR and clarifier. The current biological aerated filter was transformed into double packing media filter in phase Ⅱ to realize the in-situ upgrading. The process of MBR and UV disinfection was adopted in the expansion project of phase Ⅲ. In addition, the sewage recycling facilities with scale of 3×104 m3/d were reserved, and tail water was discharged into Liuyang River. The actual operation indicated that the effluent quality of the system completely met the design standard.
Last Update:
2021-09-17