MA Li-fang,CHEN Ju-xiang,SUN Rui.A WWTP Upgrading Reconstruction Project to Meet the First Level A Discharge Standard in Karamay[J].China Water & Wastewater,2020,36(18 18):122-125.
A WWTP Upgrading Reconstruction Project to Meet the First Level A Discharge Standard in Karamay
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
18 18
Page:
122-125
Column:
Date of publication:
2020-09-17
- Abstract:
- The aerated filter and denitrification filter operated unstably in the first phase of a wastewater treatment plant in Karamay, especially the treatment effect was poor at low temperature. The effluent SS and TP were not up to the standard for a long time, and the failure rate of BOD5 removal was 50%. In the upgrading and reconstruction project, the aerated filter was optimized, the built denitrification filter of phase Ⅰ was used as sludge and sewage accident tank, and a new deep bed denitrification filter was built. In addition, the added carbon source was changed to sodium acetate. The operation results showed that the average removal rates of SS, TP and TN reached 97.1%、91.6% and 77.6% respectively, and the effluent reached the first level A criteria in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002).
Last Update:
2020-09-17