XIAO Li?ping,LI Hong?yuan,WANG Wei?jun.Preliminary Design Details Optimization of Semi?underground Wastewater Treatment Plants Based on Operating Experience[J].China Water & Wastewater,2022,38(No.2):69-72.
Preliminary Design Details Optimization of Semi?underground Wastewater Treatment Plants Based on Operating Experience
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
No.第2
Page:
69-72
Column:
Date of publication:
2022-01-17
- Abstract:
- Based on years of operating experience of the wastewater treatment plant, suggestions for optimizing semi?underground wastewater treatment plants in the design stage were summarized. The specific suggestions and new ideas to improve the design scheme were proposed to solve the details that might not be considered in the initial design stage. The partial connection of the biological tank emptying system should be fully connected to facilitate the regulation of subsequent processes. Appropriate metering method considering the relationship between the elevation of the channel bottom and the actual water level of biological tank is selected for the setting of measuring tank on the external return channel. The transformation of the horizontal?flow secondary settling tank emptying system can realize the convenient and efficient emptying of secondary settling tank and improve maintenance efficiency. Controllability of uniform water distribution in multiple treatment lines can improve the supportability during maintenance or cleaning. Automation of the slag and sand transportation system can reduce manual participation. The optimized closure of aeration pipeline and the convenience of the instrument disassembly should be considered. The results can provide reference for similar wastewater treatment plant in the early design stage, so as to better connect with the subsequent production operation.
Last Update:
2022-01-17