Discussion on Water Source Reservoir Dredging Effects on Water Quality-Case Study of Duihekou Reservoir

To know whether the water reservoir dredging engineering affect the water source reservoir, Duihekou reservoir is taken as an example in this paper, and a test engineering of dredging at the end of the reservoir is done. First introduced the general situation of reservoir and the test dredging engineering, and combined with the characteristics of reservoir sediment, and onsite monitoring data, the impacts of water quality on the dredging operation of the reservoir, water intake and the test dredging work area were investigated and analyzed. Comprehensive routine monitoring data and special monitoring data, test dredging engineering did not have a significant impact on the water quality of Duihekou reservoir. The water quality of water intake and the test area was not significantly changed. And the upstream tended to improve, through precipitation and water purification treatment.