跌水曝气生物接触氧化预处理太湖水的研究  

Research on the Taihu Water Pretreatment by Dropacration-biological Contract Oxidation Process

作　　者：邢昌梅[1] 吕锡武[1] 

机构地区：[1]东南大学环境科学与工程系,江苏南京210096

出　　处：《江苏环境科技》2007年第1期4-8,共5页

摘　　要：生物预处理是当前给水处理去除水中氨氮和有机物的有效手段,有助于改善水的理化性质且利于后续常规工艺的运行。针对以太湖水质的特点,跌水曝气生物接触氧化预处理成为首选方法。通过对不同水力停留时间(HRT)运行效果的分析,提出了在低温季节最优的水力停留时间。污染物在生物接触氧化中的去除率随水力停留时间的增大而增大,而在HRT<1.6h范围内HRT的影响较为显著。At current water supply treatment, biological pretreatment is an efficient way to resolve ammonia-nitrogen and organics from the water. The process s helpful to improve physical and chemical characters of water and favorable for the follow-up traditional process. The drop aeration-biological contact oxidation process is the image method based on the characteristics of the Tai-hu water. Through an analysis of the running effction with different hydraulic residential times, the optimal hydraulic residential times in winter season was put forward. The removal rate of pollutants are improve with the hydraulic detention time prolonging, HRT plays an important role when HRT is less than 1.6 h.

关 键 词：跌水曝气 生物接触氧化 水力停留时间 

分 类 号：X7[环境科学与工程—环境工程]