UF膜与砂滤生物接触氧化联用处理富营养化湖泊水  

EXPERIMENTAL STUDY OF ULTRAFILTRATION OF EUTROPHICATED LAKE WATER IN COMBINATION WITH SAND FILTER AND BIOLOGICAL CONTACT OXIDATION

作　　者：李发站[1] 吕锡武[1] 王华成[1] 戈军[1] 

机构地区：[1]东南大学环境工程系,江苏南京210096

出　　处：《水处理技术》2006年第6期41-44,共4页Technology of Water Treatment

基　　金：国家高技术研究发展计划(863)项目(2002AA601130)

摘　　要：采用跌水曝气生物接触氧化、砂滤和UF膜分离的联用技术对太湖原水进行试验,结果表明,在冬季平均水温7.6℃,生物接触氧化的水力停留时间(HRT)=1.6h时,组合工艺对浊度、氨氮、CODMn、藻类和UV254的去除率分别为99.1%、44.0%、35.3%、97.9%和6.9%。而在相同的条件下,采用常规净水工艺的无锡充山水厂对浊度、氨氮、CODMn、藻类和UV254的去除率分别为98.7%、14.5%、36.4%、97.5%和5.6%。技术经济分析表明:在投资和运行费用基本相当的情况下,试验工艺的处理效率优于常规工艺。The experiments of ultrafiltration of Taihu Lake water with combination of sand filter and water-dropping aeration biological contact oxidation were evaluated. The results showed that the removal rates of turbidity,ammonia nitrogen, COD, algae, UV254 by combined process were 99.1%, 44.0%,35.3%,97.9% and 6.9%separately under the conditions of the average water temperature of 7.6℃ in winter and the HRT of the biological contact oxidation was 1.6h. While the removal rates of turbidity, ammonia nitrogen,COD, algae, UV254 by conventional purification process were 98.7%,14.5%,36.4%,97.5% and 5.6%separately in Wuxi Chongshan Water Plant at the same water temperature;under the conditions of approximately equivalent investment and running expenditure by technological and economical analyses,the efficiency of combined process was higher than that of conventional purification processes.

关 键 词：超滤 跌水曝气 生物接触氧化 富营养化 

分 类 号：X524[环境科学与工程—环境工程] TQ028.8[化学工程]