石英砂-海绵填料CANON反应器的快速启动研究  

Rapid Start-up of CANON Reactor Filled with Quartz Sand/Sponge Carrier

作　　者：李思敏[1,2] 左富民 吴坤茹 

机构地区：[1]河北工程大学河北省水污染控制与水生态修复工程技术研究中心,河北邯郸056038 [2]河北工程大学能源与环境工程学院,河北邯郸056038 [3]沈阳市市政工程设计研究院,辽宁沈阳110015

出　　处：《中国给水排水》2018年第3期100-104,共5页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07203-003);邯郸市科学技术研究与发展计划项目(1213109010G)

摘　　要：以模拟配水为处理对象,在以石英砂-海绵为填料的序批式生物膜反应器中接种普通活性污泥,通过调整工艺参数,研究CANON工艺的快速启动方案。试验初期,控制温度为(32±1)℃、DO在0.8~1.0 mg/L之间,经过25 d成功启动了亚硝化,NH+4-N去除率稳定在55%左右,亚硝酸盐积累率维持在80%以上,TN去除率低于9.6%;运行至第34天,控制DO在0.1~0.25 mg/L之间,TN去除率升至21.2%,稳定运行至第67天,成功启动CANON工艺,NH+4-N去除率和TN去除率最终分别稳定在97%和85%,TN去除负荷达到0.23 kg/(m^3·d);电镜扫描结果显示,污泥中的微生物以成簇的球形菌为主,证实了厌氧氨氧化菌的存在。本试验证明,在仅接种普通活性污泥的条件下,可实现CANON工艺的快速启动。By seeding conventional activated sludge into a CANON reactor in which quartz sand/ sponge was used as the carrier and adjusting the operational parameters, rapid start-up strategy of the CANON reactor was studied for the treatment of simulated wastewater. In the early stage of the study, through controlling temperature at （32 ± 1 ） ℃ and DO between 0.8 and 1.0 mg/L, the nitritation was activated successfully after 25 days. The NH4^＋ - N removal rate and nitrite accumulation rate were maintained at about 55% and above 80% respectively, while the removal rate of TN was less than 9.6%. TN removal rate increased to 21.2% by controlling DO between 0.1 and 0.25 mg/L on the 34th day. CANON was started up successfully after 67 days＇ stable operation, where the removal rates of NH4^＋ - N and TN finally were stable at 97% and 85% respectively, and the TN removal load reached 0.23 kg/（ m^3·d）. Scanning electron microscope results showed that clustered spherical bacteria were dominant in the sludge, which suggested the existence of anaerobic ammonium oxidation （ANAMMOX） bacteria. The study proved that, in the case of only seeding conventional activated sludge, rapid start-up of the CANON process could be realized.

关 键 词：CANON工艺 石英砂-海绵填料 普通活性污泥 快速启动 

分 类 号：TU992.3[建筑科学—市政工程]