三种接种物启动Anammox-EGSB反应器的性能  

Performances of Anammox-EGSB bioreactors started up with three different seeding sludges

作　　者：丁爽[1] 郑平[1] 唐崇俭[1] 张吉强[1] 胡安辉[1] 

机构地区：[1]浙江大学环境工程系,杭州310058

出　　处：《生物工程学报》2011年第4期629-636,共8页Chinese Journal of Biotechnology

基　　金：国家高技术研究发展计划(863计划)(No.2009AA06Z311);国家自然科学基金(No.31070110)资助~~

摘　　要：为了优选接种物和加速厌氧氨氧化(Anammox)反应器启动,分别以厌氧产甲烷污泥(Anaerobic methanogenic sludge,AMS)、新鲜厌氧氨氧化污泥(Fresh Anammox sludge,FAS)和储藏厌氧氨氧化污泥(Stored Anammox sludge,SAS)作为接种物,研究了厌氧氨氧化膨胀颗粒污泥床(Anammox-EGSB)反应器(R1、R2和R3)的启动性能。结果表明:3种接种物均能成功启动Anammox-EGSB反应器,启动性能的优劣次序为:R2(接种物为FAS)>R3(接种物为SAS)>R1(接种物为AMS)。三种接种物启动Anammox反应器呈现不同的过程特性。R1的启动过程分为菌体水解期(15 d)、活性迟滞期(54 d)和活性提高期(40 d);R2的启动过程分为活性迟滞期(2 d)和活性提高期(15 d);R3的启动过程分为活性迟滞期(12 d)和活性提高期(57 d)。将Anammox污泥潜浴于Anammox反应器出水中,是长期储藏Anammox污泥的有效方法;反应器内氨氮去除率、反硝化作用比例和三氮比例均可作为Anammox反应器启动进程的指示参数。In order to select better seeding sludge and promote start-up of Anammox reactors,we studied the start-up performances of three Anammox-EGSB bioreactors inoculated with anaerobic methanogenic sludge（AMS）（R1）,Fresh Anammox sludge（FAS）（R2） and stored Anammox sludge（SAS）（R3）,respectively.Results showed that these three seeding sludges could start up Anammox-EGSB bioreactors successfully,but the start-up progresses showed different characteristics.The start-up course of R1 could be divided into three phases including autolysis phase（15 d）,lag phase（54 d） and activity elevation phase（40 d）.However,the start-up courses of R2 and R3 only included lag phase（2 d and 12 d,respectively） and activity elevation phase（15 d and 57 d,respectively）.Besides,the performance of R3 was better than that of R1,but worse than that of R2.Furthermore,bathing the Anammox sludge in the effluent of bioreactors was a convenient and effective way to keep the activity of the Anammox sludge.The ammonia removal efficiency,percentage of denitrification and the stoichiometric ratios of NH4＋-Nr/NO2——Nr and NO3——Np/NH4＋-Nr could serve as indicators to monitor the start-up of Anammox bioreactors.

关 键 词：厌氧氨氧化 接种污泥 启动性能 

分 类 号：X703[环境科学与工程—环境工程]