银川市河湖生态补水的中水利用量研究

Study On Utilization of Reclaimed Water for Ecological Water Replenishment of Rivers and Lakes in Yinchuan

由于缺乏自然补水来源,银川市河湖现状主要靠黄河水补充,并且在非黄河补水期近乎一汪死水,在水资源总量刚性约束条件下,回用中水是解决河湖生态缺水的有效途径,可以改善河湖水动力、提高自净能力,利用中水置换部分黄河水并补充非灌溉期河湖用水是银川河湖水系成为四季长流、造福人民幸福河湖的唯一途径。

Due to the lack of natural water replenishment sources,Yinchuan’s rivers and lakes are mainly replenished by the Yellow River,and they are nearly a stagnant water during the non-Yellow River replenishment period.Under the rigid constraint of total water resources,recycling reclaimed water is an effective way to solve the ecological water shortage of rivers and lakes,which can improve the hydrodynamics and self-purification capacity of rivers and lakes.Replacing part of the Yellow River water with reclaimed water and supplementing water in rivers and lakes during non-irrigation period is the only way for Yinchuan rivers and lakes to become a perennial water in all seasons and benefit the people.