LIU Tian-shun,YANG Shu-xia,WEI Xun,et al.Application of High-efficiency Sedimentation Tank and Hydro-Clear Shallow Media Rapid Filter for Advanced Treatment in a Wastewater Treatment Plant[J].China Water & Wastewater,2021,37(24 24):82-86.
Application of High-efficiency Sedimentation Tank and Hydro-Clear Shallow Media Rapid Filter for Advanced Treatment in a Wastewater Treatment Plant
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
24 24
Page:
82-86
Column:
Date of publication:
2021-12-17
- Abstract:
- To meet the A limitation (TP and SS in the effluent are no more than 0.3 mg/L and 5 mg/L,respectively) of Tianjin local standard in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (DB 12/599-2015), the main process of A2/O and the advanced treatment process of high-efficiency sedimentation tank with adequate dosage of PAC and PAM were adopted based on limited footprint and strict effluent quality requirement, and the process was followed by a Hydro-Clear shallow media rapid filter, which achieved the goal that the TP and SS in the effluent were no more than 0.3 mg/L and 5 mg/L, respectively. The project was operated formally in January 2020. The average SS in the effluent was 2.7 mg/L, which stably met the design standard of SS no more than 5 mg/L. During the operation of shallow media rapid filter, the proportion of backwash water was less than 2%, and the direct operating cost including consumption of electricity and chemicals was 0.004 5 yuan/m3.
Last Update:
2021-12-17