竹银水库建库前底泥氮磷释放模拟研究及应用Ⅱ

Study and apply on experiment of simulative sediment nitrogen and phosphorus release before construction by Zhuyin reservoir Ⅱ

以珠海竹银水库为研究对象,在文献[1]数据研究的基础上,对水库富营养化进行成因分析,探讨水库建成通水前底泥清淤的必要性及清淤措施的选择。研究结果表明:对竹银水库库底土壤总氮释放浓度高的区域采取的清淤措施,降低了水库建成后运行时底泥中氮磷污染物的二次污染,保障了水库饮用水源安全。这些结果为其他新建水库的水质监测和管理提供了参考和借鉴。

Zhuyin reservoir in Zhuhai is taken as the research object for analysis of the reasons about reservoireutrophication on the base of the date has been researched in document 1. It has discussed the necessity ofsediment desilting and selection of desilting measures before construction of the reservoir. The research showsthat some dredging measures have been taken in the area with high concentration of total nitrogen release of thereservoir bottom soil to reduce the secondary pollution of nitrogen and phosphorus pollutants in sediment whenthe reservoir is put into normal operation, and ensure the safety of drinking water of the reservoir. The researchresults are useful for water quality monitoring and management of other newly-built reservoirs.