膜生物流化床强化反硝化脱氮的影响因素研究  

STUDY ON INFLUENCING FACTORS OF THE ENHANCED DENITRIFICATION IN MEMBRANE BIOLOGICAL FLUIDIZED BED

作　　者：郭杨 张子涵[2] 

机构地区：[1]江苏省水处理服务中心,210036 [2]东南大学土木工程学院,江苏南京210096

出　　处：《水处理技术》2013年第5期100-103,107,共5页Technology of Water Treatment

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.

关 键 词：膜生物流化床 城市污水 强化反硝化 

分 类 号：X703.1[环境科学与工程—环境工程] TQ028.8[化学工程]