摘要
采用以瓷珠为填料的曝气生物滤池(BAF)预处理某高氨氮源水,结果表明,在气水比为1:1、滤速为5.5m/h、水温>10℃的条件下,当进水氨氮<5 mg/L时BAF对氨氮的去除率为70%~90%,反应器中存在一定的亚硝酸氮积累;反冲洗周期对氨氮的去除率有较大影响.
Biological aerated filter (BAF) with porcelain beads as carrier was used for pretreatment of the high ammonia nitrogen content source water. The result shows that under the air/water ratio of 1∶1, filter velocity of 5.5 m/h, water temperature higher than 10 ℃, and influent ammonia nitrogen less than 5 mg/L, the removal rate of ammonia nitrogen is 70%-90%, with some nitrite accumulated in the reactor. Backwash cycle has more effect on ammonia nitrogen removal rate.
出处
《中国给水排水》
CAS
CSCD
北大核心
2005年第5期32-35,共4页
China Water & Wastewater
关键词
预处理
曝气生物滤池
瓷珠
氨氮
pretreatment
biological aerated filter
porcelain beads
ammonia nitrogen