XIAOXu-mu,CHENDe-ye,HUHe-ping,et al.Semi-closed Water Flowing Project Based on Joint Scheduling of Sluice & Pumping Station[J].China Water & Wastewater,2022,38(16):113-116.
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Semi-closed Water Flowing Project Based on Joint Scheduling of Sluice & Pumping Station

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第38卷 Number: 第16期 Page: 113-116 Column: Date of publication: 2022-08-17
Author(s):
XIAO　Xu-mu1; 2;  CHEN　De-ye1; 2;  HU　He-ping1; 2;  YOU　Sheng1; 2
（1. China Water Resources Pearl River Planning Surveying & Designing Co. Ltd.， Guangzhou 510610， China； 2. Aquatic Ecological Engineering Center， Pearl River Water Resources Commission of the Ministry of Water Resources， Guangzhou 510610， China）
Keywords:
semi-closed water;  sluice;  pumping station;  joint scheduling;  water flowing project
Abstract:
Dongpo Lake is a semi-closed water with tidal influence. It has large water surface area, poor hydrodynamic condition and long-term retention time, which create favorable hydrological conditions for algae bloom and lead to eutrophication. In order to improve the hydrodynamic conditions of Dongpo Lake, water flowing engineering measures such as culvert reconstruction, setting pumping station and sluice were adopted. Through the joint scheduling of sluice & pumping station, the retention time of water was reduced from 22.3 days to 13.2 days. After the implementation of the water flowing project, the trophic level index (TLI) is 48-66 in a state of mesotropher to middle eutropher, showing a gradual decline. Since the current water flowing projects that have been implemented are not enough to completely solve the eutropher problem of Dongpo Lake, the other planning projects are urgently needed.
Last Update: 2022-08-17