潜流人工湿地废水处理技术的效能

The Performance of Constructed Subsurface Flow Wetland For Wastewater Treatment

人工湿地是一种很有前途的废水处理方法,利用人工湿地处理废水仍是一个相对较新的概念．可以将系统设计成能够最大程度地发挥天然湿地的物理、化学,以及生物潜能的工程系统．当废水缓慢流过系统时,ＢＯＤ,ＴＳＳ,ＴＮ,Ｐ及病原菌得以大部分去除,同时,通过沉淀和吸收可去除金属．主要污染物去除机理包括好氧和厌氧微生物转化、吸收、沉淀、挥发,以及化学转化等．

Constructed wetland systems are a promising wastewater treatment technology. The concept of constructed wetlands for wastewater treatment is still a relatively new idea. The systems are designed to maximize the physical, chemical and biological abilities of natural wetlands to reduce the BOD, TSS, TN, P, and pathogens as wastewater flows slowly through the vegetated subsurface. Precipitation and uptake of metals are also possible. The mechanisms of pollutant removal in SF wetlands include both aerobic and anaerobic microbiological conversions, sorption, sedimentation, volatilization and chemical transformations.