黑臭水体生物治理与生态修复的实践探讨

Discussion on biological treatment and ecological restoration practice of black and odorous water

生物修复是指通过特定的生物清除、吸收、降解或转化污染物,使受污染的环境可以完全恢复到原始状态。当前在对受到污染的水体进行修复时主要采用化学修复技术、生物修复技术和物理修复技术,其中生物修复技术具有生态节能、环境友好等优点,是一种应用前景广阔的生态修复技术。本文以江苏省无锡市滨湖区为例对黑臭水体形成的原因进行了分析,然后提出了生态修复设计理念,并重点从水质净化、水体生态系统构建两个方面对生态修复措施进行了讨论,希望能为接近条件的城市河道治理提供参考。

Biological restoration means polluted environment can be restored to the original state fully through specific biological removal, absorption, degradation and transformation of pollutants. Chemical remediation technology, hioremediation technology and physical remediation technology are adopted mainly at present when polluted waters are restored, wherein bioremediation technology has the advantages of ecological energy saving, environmental protection, etc. It is an ecological restoration technology with wide application prospect in the future. In the paper, Binhu District is regarded as an example for analyzing the reasons of forming black and odorous water. Then, the concept of ecological restoration design is proposed. Ecological restoration measures are discussed mainly from two aspects of water purification and water ecological system construction. It is expected that the paper can provide reference for controlling urban water channels approaching to conditions.