SHEN Xiao-hua,QI Guo-fu,GENG Hong,et al.Technical Route and Case Analysis of Drainage Network Abnormity Investigation for Low Water Quality Concentration[J].China Water & Wastewater,2021,37(4 4):97-100.
Technical Route and Case Analysis of Drainage Network Abnormity Investigation for Low Water Quality Concentration
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第37卷
Number:
4 4
Page:
97-100
Column:
Date of publication:
2021-02-17
- Keywords:
- quality and efficiency improvement; low concentration; ammonia nitrogen; drainage network investigation
- Abstract:
- Aiming at the problems of large workload, high investment cost, and long time consumption in the quality and efficiency improvement action of drainage network investigation, the pros and cons of the main methods are analyzed, and the water quality comparison method is selected as the core for drainage network investigation. The portable ammonia nitrogen instrument was used to detect and analyze the water quality of key inspection wells in a drainage network of Nanjing and gradually narrow the project inspection scope before using the dredging test for auxiliary inspection. The low concentration problem was rectified right after found out quickly and effectively, and closed-loop water quality detection was conducted after the rectification is completed to verify the effectiveness. The results show that water quality testing is an important link in the action of quality and efficiency improvement, and plays a significant role in narrowing the scope of investigation and determining the location of the problem. Rapid water quality detection methods (such as portable ammonia nitrogen instruments) are economical and quick in drainage network investigation projects, and have promotion significance.
Last Update:
2021-02-17