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化工学报  2015 

生物转鼓反应器氧转移特性及运行效能

DOI: 10.11949/j.issn.0438-1157.20141880, PP. 2678-2685

Keywords: 生物反应器,废水,降解,生物转鼓反应器,氧转移特性,分段进水,后置反硝化

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Abstract:

采用一种研制的新型生物转鼓反应器(RDBC),内部装填MBBR悬浮填料,通过调节浸没深度和转速可实现厌氧、缺氧、好氧等工况条件下运行,其氧总体积传质系数KLa可达25.87h-1,动力效率可达228.62g·(kW·h)-1。利用生物转鼓分段进水后置反硝化工艺处理模拟生活污水,结果表明:在进水流量6L·h-1(HRT18h),好氧生物转鼓反应器浸没高度比2/3、转速8r·min-1、DO3.0mg·L-1,缺氧生物转鼓反应器浸没高度比5/6、转速4r·min-1、DO1.0mg·L-1,进水流量分配比3:1,进水COD、NH4+-N和TN浓度平均值分别为385.0、38.0和38.0mg·L-1时,COD、NH4+-N和TN去除率分别达到90.4%、93.7%和80.9%,出水水质可满足我国《城镇污水处理厂污染物排放标准》(GB18918—2002)一级A排放标准要求。

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