LIUTian-shun,ZHANGGuo-wei,LIUZhi-sheng.Application of Negative Pressure Drainage System in Rural Sewage Collection[J].China Water & Wastewater,2022,38(24):64-71.
Application of Negative Pressure Drainage System in Rural Sewage Collection
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第38卷
Number:
第24期
Page:
64-71
Column:
Date of publication:
2022-12-17
- Keywords:
- rural sewage; negative pressure drainage system; gas-liquid ratio; black-grey water separation
- Abstract:
- In some rural areas with the characteristics of complex terrain, dense buildings, narrow streets and high consolidation degree of roads, negative pressure drainage technology can be used to solve the sewage collection problem in areas without gravity flow drainage system. The composition and main equipment of rural negative pressure drainage system was systematically introduced, and the factors affecting the selection of design parameters of outdoor negative pressure pipe network in rural areas were summarized and analyzed. The necessity of intelligent operation and maintenance management of negative pressure drainage system in large areas was proposed and exemplified by practical engineering cases. Finally, corresponding suggestions were proposed to solve the problems such as construction of negative pressure system, operation strategy of the combined system, winter operation, and construction and operational cost of the system.
Last Update:
2022-12-17