Study On Mechanism And Purifying Function Of Biological Pool In Treating Micro-polluted Raw Water

As the aggravation of source drinking-water pollution of most cities in our country, it is becoming more and more difficult for the conventional water purification system to remove contaminations efficiently, including the dissolved organic matter, ammonia-N, nitrite, total organic carbon, COD_Mn , Fe, Mn, etc. The drinking water quality menaces people's health and safety in vary extent. Hence, we have to innovate the conventional water purification system in order to adapt to removing the contamination. In order to improve effectively the outlet water quality, the article examines the application of biological filter for micro-polluted source water. This process is an effective, convenient and economical technology, ensure the outlet water quality safety.Further study has been conducted to evaluate the performance of biological filter water purification system removing turbidity, color, ammonia-N, nitrite, COD_Mn, total organic carbon, iron and manganese etc. index of the Fuyang River through pilot-plant. When water temperature is 8— 20℃, filtration rate of 8m/h, inlet water dissolved oxygen level remains more...