ZHANG Jian,LI Meng-fei,LI Meng,et al.Application of Negative Pressure (Vacuum) Drainage Technology in Collection of Rural Sewage[J].China Water & Wastewater,2020,36(22 22):66-71.
Application of Negative Pressure (Vacuum) Drainage Technology in Collection of Rural Sewage
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
22 22
Page:
66-71
Column:
Date of publication:
2020-11-17
- Keywords:
- negative pressure (vacuum) drainage; source separation; rural sewage collection and treatment
- Abstract:
- When the conventional drainage mode of gravity sewer combined with lifting pump station is applied in rural areas, there are problems such as low collection rate, high construction cost and difficult diversion of rainwater and sewage. Therefore, the negative pressure drainage technology is more suitable for rural sewage collection with small pipe diameter, flexible arrangement, fast flow rate, small disturbance to the periphery of construction, high concentration sewage collection. So its improvement, lifting and optimization deserve attention. Four basic patterns of rural negative pressure drainage are put forward, namely indoor gravity flow+outdoor negative pressure mixed collection, indoor negative pressure toilet+outdoor negative pressure mixed collection,indoor gravity flow+outdoor negative pressure separation collection, indoor negative pressure toilet+outdoor negative pressure separation collection, and the specific case is introduced. The practice of this case showed that the negative pressure drainage technology could collect high concentration black water on a large scale, which could provide a new technical means for the utilization of black water resources.
Last Update:
2020-11-17