南水北调对城市供水安全预测研究
Predictive Research on the Safety of Urban Water Supply by South-to-North Water Transfer Project

南水北调中线工程的顺利实施，解决了沿线多数地区用水短缺、水质差等重大难题，并对涵养地下水资源保护生态环境意义深远。但是如何保障受水地区供水水质，保证人民的饮用水健康成为现在的重要工作。本研究通过对丹江口水库、密云水库水体混合试验发现，南水与北水混合，出现了较为鲜明的物理混合特征，未发现沉淀絮凝现象，混合水体各项水质指标满足饮用水源地水质要求；混合水体用于衡量氯离子、硫酸根离子腐蚀性的拉森指数值相较于密云水库原水有所降低，在一定程度上保证了南水入京对城市供水管网的影响，确保了供水安全。
The Middle Route of South-to-North Water Transfer Project had solved major problems such as water shortage and water quality in most areas along the route. However, it was an important task that how to ensure the quality of water supply in the water-receiving areas and ensure the health of the people’s drinking water. The water of Danjiangkou Dam and Miyun Reservoir were mixed in this research. The results showed that the mixing of South Water and North Water showed physical mixing characteristics and the water quality indexes meet the water quality requirements of the drinking water source. The Larson Index of the mixed water was lower than the raw water of Miyun Reservoir which ensures the influence of the south water entering Beijing on the urban water supply to a certain extent and ensures the water supply security.