受高浓度铁锰氨氮污染的地下水治理研究

The Research on Management of High Contation of Fe- Mn and NH_3- N in the Underground Water

地下水在工业、农业的生产活动中作为一重要的水资源,却随着城市化的不断发展,污染越来越严重。由铁锰和氨氮造成的地下水的污染危害较严重,如滋生细菌、产生致癌副产物、影响人体中枢系统等,不容小视。随着时代的发展,处理铁锰氨氮的技术也逐渐从原始的自然氧化发展为高效率的高级氧化和生物过滤等工艺。尽管如此,现行工艺也存在着很大的缺陷,目前国内外研究者主要致力于高铁、高锰、高氨氮的同层去除研究。但同层去除很容易出现溶解氧不足的情况,因此两级生物除铁锰滤池。

Underground water is an important water resources at industrial and agricultural production activities, but its pollution is increasingly more serious with the continuous development of urbanization. The harm of underground water pollution caused by Fe - Mn and NH3 - N is more serious, so that it cant be ignored. The pollution involves bacterial growth, producing carcinogenic by -products, affecting the human central nervous system, etc. As the time changed, the treatment technology at Fe - Mn and NH3 - N has changed from the original autoxidation to more efficient technology like advanced oxidation, biofihration and so on. Even so, there are a lot of defects at the current craft, and the researchers at home and abroad mainly devoted themselves to the removal research of high Fe - Mn and NH3 - N at the same laver. But it is common that dissolved oxygen will be not enough when dislodging at the same layer. Lacking of dissolved oxygen is a common problem in dislodging at the same layer, so the key problem is ensuring the removal rate of the pollutants in the two - stage biofilter and researching interaction between Fe - Mn and NH3 - N.