摘要
在滤速为0.8m/h、曝气量为25L/h的条件下,研究了水温、COD容积负荷、NH4+-N容积负荷对上向流曝气生物滤池(UBAF)去除城市污水中NH4+-N效果的影响。结果表明,水温是影响UBAF去除NH4+-N效果的主要因素,水温较高时UBAF对NH4+-N的去除效果较好,但低温时其对NH4+-N去除率的影响较大;当COD容积负荷较高时,其对NH4+-N的去除有明显的抑制作用,且低温条件下其对NH4+-N去除率的影响较高温条件下显著;在NH4+-N容积负荷相对较高而水温较低时,NH4+-N容积负荷对NH4+-N去除率的影响相对较大。
At the filtering rate of 0.8 m/h and the aeration rate of 25 L/h, the effect of water temperature, COD andNH4^＋ -N volume load on NH4^＋ -N removal by the up-flow biological aerated filter （UBAF） was studied. The results show that water temperature is the main factor affecting ammonia nitrogen removal. The higher the water temperature is, the higher the NH4^＋ -N removal rate is. However, there is greater impact on NH4^＋ -N removal when the temperature is low. When the COD volume load of raw water is high, the removal of NH4^＋ -N is significantly inhibited, and the influence on the NH4^＋ -N removal rate is greater when the temperature is low. When the NH4^＋ -N volume load of raw water is high, and water temperature is low, the influence of the NH4^＋ -N volume load on the NH4^＋ -N removal rate by UBAF is more apparent.
出处
《中国给水排水》
CAS
CSCD
北大核心
2009年第3期102-104,108,共4页
China Water & Wastewater
基金
河北省重大科技支撑项目(07276713D)
关键词
曝气生物滤池
氨氮
水温
容积负荷
biological aerated filter
ammonia nitrogen
water temperature
volume load
作者简介
电话：（0310）7428748 E-mail：chyeli@126．com
