城区内河水环境的生物治理——以池州市清溪河为例

对清溪河污染的治理，可以采用一系列理化的方法，但相比之下，利用生物治理不仅操作简便，成本低廉，而且能很好的修复水生生态系统的结构，达到良性循环的效果。驳岸的植物是一道屏障，能有效阻止和减少地表污染物进入水体，水中微生物将有机态的污染物转化为无机养份被植物吸收，植物为水中的微生物提供附着表面，而草食性鱼类能抑制植物的过渡生长，最终实现生态系统的重建与修复，使河道进入可持续发展的良性循环体系。

Bioremediation of river environment in urban areas in case of Qingxi river in Chizhou

In order to control Qingxi River pollution, you can use a series of physical and chemical methods. But in comparison, making use of biological control is not only easy to operate, low cost, and can be a good restoration of aquatic ecosystem structure, to achieve a virtuous circle effect. Revet- ment plants are a barrier, which can effectively prevent and reduce surface contaminants into the wa- ter. Microorganisms in water can change the organic state of pollutants into inorganic nutrients ab- sorbed by plants while plants provide microorganisms in water with the attached surface, and herbivo- rous fish can inhibit the excessive growth of plants, and ultimately bring about the reconstruction and restoration of ecosystems, which make river develop into a virtuous cycle of sustainable system.