QIN Zai-gen,YAN Ping.Design of Upgrading Reconstruction and Expansion Project of a Wastewater Treatment Plant Without Wastewater Stoppage and Expansion of Area[J].China Water & Wastewater,2020,36(14):113-117.
Design of Upgrading Reconstruction and Expansion Project of a Wastewater Treatment Plant Without Wastewater Stoppage and Expansion of Area
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
14
Page:
113-117
Column:
Date of publication:
2020-07-17
- Keywords:
- semi-underground wastewater treatment plant; upgrading reconstruction and expansion; A2O-MBR
- Abstract:
- The original design scale of a wastewater treatment plant in Beijing was 2×104 m3/d, and the standard of effluent was the national first class A standard. In the project of upgrading and expanding, the scale would be expanded from 2×104 m3/d to 8×104 m3/d without increasing the land occupation. The effluent standard would be upgraded from the national first class A standard to B level of Beijing local standard Discharge Standard of Water Pollutants for Municipal Wastewater Treatment Plants（DB 11/890-2012）. The main process of the project adopted the A2O-MBR, and the advanced treatment used ozone and ultraviolet combined oxidation. Due to the limited area, the project adopted a semi-underground construction form, and at the same time, to ensure that the normal production of the wastewater treatment plant was not affected during the transformation period, the whole transformation was implemented by stages. After the actual operation feedback, the effluent indicators of the project fully met the design requirements, and the actual operation state was good.
Last Update:
2020-07-17