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随着城市化进程加快,城市需水量日渐增加,资源型与水质型缺水城市越来越多。膜分离技术的发展使小系统局部循环利用水资源的模式成为可能,这种水资源利用方式延长了水资源的生命周期,能帮助城市从根本上解决水资源总量短缺的问题。通过延长水的生命周期来缓解城市水资源短缺是迫切而具有现实意义的举措。目前,膜技术的使用已给北京、山东、江苏等地带来明显的效益,在一定程度上缓解了水资源短缺问题。
With the accelerating process of urbanization, increasing urban water demand, resource-based and water-based cities with more and more water. The development of membrane separation technology makes it possible for small-scale systems to partially recycle water resources. This utilization of water resources prolongs the life cycle of water resources and helps cities to fundamentally solve the problem of the shortage of water resources. It is an urgent and relevant measure to alleviate the urban water shortage by extending the life cycle of water. At present, the use of membrane technology has brought obvious benefits to Beijing, Shandong and Jiangsu, easing the problem of water shortage to a certain extent.