城市河道是现代城市生存和发展的重要公共资源,它在城市及周边地区的经济发展和生态保护中有着十分重要的地位。但是由于生活污水和工业废水的随意排放,加之部分河道水系不畅等原因,造成许多城市内河日益黑臭,阻碍了城市经济、社会与环境的协调发展,给城市居民的身心健康带来很 Urban rivers are important public resources for the survival and development of modern cities. They play an important role in the economic development and ecological protection of cities and their surrounding areas. However, due to the random discharge of domestic sewage and industrial waste water and the sluggish water system in some of the river channels, many inland rivers are increasingly black and smelly, hindering the coordinated development of urban economy, society and environment, bringing about the mental and physical health of urban residents