CHEN Liang,MO Shao-de,ZHOU Bo,et al.Application of Multi-stage AO+High Efficiency Sedimentation+Denitrification Filter Process in a WWTP with Quasi Class Ⅳ Effluent Standard[J].China Water & Wastewater,2021,37(10 10):75-78.
Application of Multi-stage AO+High Efficiency Sedimentation+Denitrification Filter Process in a WWTP with Quasi Class Ⅳ Effluent Standard
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
10 10
Page:
75-78
Column:
Date of publication:
2021-05-17
- Abstract:
- The design scale of the first stage of a wastewater treatment plant in Guangdong was 2.5×104 m3/d. The effluent was required to meet the standard of surface water quasi class Ⅳ. To improve the removal efficiencies of nitrogen and phosphorous, multi-stage AO process was adopted as biochemical treatment technology, which could fully take advantage of the influent carbon source and save energy via reducing backflow. High efficiency sedimentation tank and denitrification filter were adopted to strengthen the removal efficiencies of TN, TP and SS in advanced treatment process. The design parameters of main structures were introduced. The denitrification performance of multi-stage AO and denitrification filter was analyzed. Corresponding measures were proposed to solve the existing problems during the operation process. The actual operating data showed that the effluent quality could stably reach the quasi class Ⅳ standard.
Last Update:
2021-05-17