新型填料PVF的制备及其同时硝化反硝化反应的研究  

PREPARATION OF NEW FILLER PVF AND ITS PERFORMANCE OF SIMULTANEOUS NITRIFICATION AND DENITRIFICATION

作　　者：刘宇航[1] 陆晓中[2] 赵明[2] 胡翔[1] 孙晓民[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]北京石油化工学院材料与化工学院,北京102617

出　　处：《水处理技术》2006年第8期26-29,69,共5页Technology of Water Treatment

摘　　要：制备了一种新型的高分子多孔载体-活性PVF泡沫填料。这是一种在悬浮填料移动床工艺中为微生物提供附着生长的新型载体。由于具有通孔结构,使载体从表面到内部形成不同溶解氧梯度,因此能够在一个反应器内发生同时硝化反硝化反应(SND)。研究表明,PVF填料适宜的活性炭含量是8%,表观密度0.85g/cm3,孔隙率60%,具有一定的强度,可以很好抵御水力冲刷。在复合式生物反应器中加入活性PVF泡沫填料处理模拟生活污水,发生SND的工艺条件为:溶解氧(DO)为2.0～2.2mg/L,碳氮比(COD/NH4+-N,简写为C/N)为20。A bioactive PVF foam filler was prepared. It is a porous polymer carrier to provide habitat for microorganism in the moving Bed Reactor Process （MBBR）. With porous structure, the PVF filler could form a gradient of different dissolved oxygen from the internal to exterior oftbe carder, thus simultaneous nitrification and deoitrification （SND） could happen in a reactor. The results showed that the suitable AC content of PN-filler was 8%; PVF filler had apparent density ofO.85g/cm^3 and porosity of 6%; it possessed a certain strength and better hydraulic flushing resistance. When the active PVF foam filler was dosed into a composite biological reactor to treat the simulation domestic sewage, the technological conditions of SND happened are： dissolved oxygen （DO） is within 2.0-2.2mg/L, ratio of carbon to nitrogen （C/N） was 20.

关 键 词：PVF泡沫填料 多孔载体 同时硝化反硝化 悬浮填料移动床工艺 

分 类 号：X703.5[环境科学与工程—环境工程]