BIAN Zhao-sheng,CAI Tian,DAI Hui-qi.Assessment and Treatment of Overflow Pollution Load in Combined Partition Drainage System[J].China Water & Wastewater,2020,36(21 21):115.
Assessment and Treatment of Overflow Pollution Load in Combined Partition Drainage System
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第36卷
Number:
21 21
Page:
115
Column:
Date of publication:
2020-11-01
- Keywords:
- combined sewer overflow (CSO) pollution; partition drainage system; detention tank; MIKE URBAN
- Abstract:
- Aiming at the overflow pollution problem of a combined partition drainage system in service area of Xiaoximen pump station in Changsha City, a water quality and quantity model was established by using MIKE URBAN.The event pollution characteristics of the study area were analyzed based on typical rainfall such as light rain, moderate rain, heavy rain and rainstorm, and the overflow pollution load in the whole year was obtained by continuous simulation of rainfall in 2016. Three measures for overflow pollution control in rainy season were proposed, and the optimal solution was single sewage interception in high and low areas, increase of interception ratio and setting detention tank, which could reduce the annual overflow times in the study area to 33 times, and increase the overflow load reduction rate of COD, NH3-N and TP to 52.81%, 61.30% and 64.59%, respectively.
Last Update:
2020-11-01