摘要
试验采用膜生物流化床(MBFB)处理城市污水,通过控制回流比、悬挂填料、投加碳源等措施,考察了MBFB强化反硝化脱氮的影响因素。结果表明,回流体积比为250%、缺氧区下部悬挂体积比20%的组合填料、以乙醇为外加碳源、进水m(C)/m(N)为13时的TN平均去除率最高,为80.8%,比未强化前提高了12.1%。
In this study, municipal sewage was treated by using membrane biological fluidized bed （MBFB）. The effects of reflux ratio, hanging filler and carbon source dosage on enhanced denitrification were investigated. It is found that when reflux ratio is 250%, the amount of combined media which is hung beneath the influent pipe in the anoxic area is 20%, the m（C）/m（N） is 13 and used ethanol as carbon source, the TN average removal rate can be up to 80.8%, which is 12.1% higher than before.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第5期100-103,107,共5页
Technology of Water Treatment
关键词
膜生物流化床
城市污水
强化反硝化
membrane biological fluidized bed （MBFB）
municipal sewage
enhanced denitdfication
