城市黑臭河道成因分析及治理技术——以镇江市为例

The Cause Analysis and Treatment Technology of Black and Smelly River in City

随着经济的快速发展,我国的水污染问题日益严重,城市黑臭河道的出现严重影响着人民群众的身心健康和水生态文明的建设进程,黑水除臭已经成为急需解决的难题。江苏省镇江市作为长三角地区的重要口岸,其水污染现状不容乐观,城市河道黑臭问题亟待解决。本文以镇江市为例,分析了黑臭河道的外源性及内源性成因;同时从物理、化学、生物修复等方面,系统综述了有效治理黑臭河道的技术;通过进一步的优化,指出要采用以生物-生态修复技术为主的综合治理技术,重视河道水生态系统的健康。结合玉带河治理案例,展示了应用综合治理技术后的良好效果,可以为今后其他城市黑臭河道的生态治理提供参考。

With the rapid development of economy,the problem of water pollution in China has become increasingly serious.The appearance of black and smelly rivers in cities has seriously affected the physical and mental health of the people and the construction process of water ecological civilization.Deodorization of black water has become an urgent problem to be solved.As an important port in the Yangtze River Delta,Zhenjiang city of Jiangsu Province is facing an unoptimistic situation of water pollution,and the black and smelly problem in urban rivers needs to be solved urgently.Taking Zhenjiang city as an example,this paper analyzed the exogenous and endogenous causes of black and smelly river.At the same time,from the physical,chemical and bioremediation aspects,the effective technology of black and smelly river treatment was systematically summarized.Through further optimization,it was pointed out that the comprehensive treatment technology based on bio-ecological remediation technology should be used and pay attention to the health of river water ecosystem.Combined with the case of Yudai River,the satisfied effect of comprehensive treatment technology is demonstrated,which can provide reference for ecological treatment of black and smelly river in other cities in the future.