气水比对高速给水曝气生物滤池脱氮效果的影响  

EFFECT OF AIR/WATER RATIO ON HIGH-RATE UBAF FOR THE REMOVAL OF AMMONIA

作　　者：邵志昌[1] 陆少鸣[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510006

出　　处：《水处理技术》2011年第3期88-90,95,共4页Technology of Water Treatment

基　　金：国家十一五水专项课题(2008ZX07423-002-1)

摘　　要：以珠江水源水为高速给水曝气生物滤池(high-rate UBAF)预处理中试试验对象,研究采用单孔膜曝气滤头曝气系统时,滤池于不同气水比工况下对珠江水源水的脱氮效果。结果表明:水温为30℃,水力停留时间为15 min,处理水量为64 m3.h-1,滤速为16 m.h-1时,随着气水体积比从0.1增加至0.7,DO浓度呈对数上升;当气水体积比大于0.5时,预处理出水NH4+-N质量浓度基本上小于0.5 mg·L-1,NO2--N小于0.110 mg·L-1。The pilot test took the raw water from Pearl River as the object that pre-treated by high-rate UBAF. When using single-pore membrane aerating filter head as the filter＇s aeration system, study on the nitrogen removal by high-rate UBAF was carried out under various air/water ratio conditions. Results show that in the temperature of 30 ℃, and under the retention time of 15 min, with 64 m3·h^-1 of water flow, and 16 m ·h^-1 of filtration rate, when the air/water ratio is stepped-up from 0.1 to 0.7, the DO concentration increases logarithmically. When the air/water ratio is above 0.5, the value of the effluent ammonia is lower than 0.5 mg·L^-1, while the nitrite is lower than 0.110 mg·L^-1.

关 键 词：高速给水曝气生物滤池 气水比 氨氮 微污染原水 

分 类 号：X703.1[环境科学与工程—环境工程]